Internet Engineering Task Force (IETF) X. Geng
Request for Comments: 9633 Huawei Technologies
Category: Standards Track Y. Ryoo
ISSN: 2070-1721 ETRI
D. Fedyk
LabN Consulting, L.L.C.
R. Rahman
Equinix
Z. Li
China Mobile
October 2024
Deterministic Networking (DetNet) YANG Data Model
Abstract
This document contains the specification for the Deterministic
Networking (DetNet) YANG data model for configuration and operational
data for DetNet flows. The model allows the provisioning of an end-
to-end DetNet service on devices along the path without depending on
any signaling protocol. It also specifies operational status for
flows.
The YANG module defined in this document conforms to the Network
Management Datastore Architecture (NMDA).
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc9633.
Copyright Notice
Copyright (c) 2024 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Revised BSD License text as described in Section 4.e of the
Trust Legal Provisions and are provided without warranty as described
in the Revised BSD License.
Table of Contents
1. Introduction
2. Abbreviations
3. Terminology
4. DetNet YANG Module
4.1. DetNet Application Flow YANG Attributes
4.2. DetNet Service Sub-layer YANG Attributes
4.3. DetNet Forwarding Sub-layer YANG Attributes
5. DetNet Flow Aggregation
6. DetNet YANG Structure Considerations
7. DetNet Configuration YANG Structures
8. DetNet Configuration YANG Data Model
9. IANA Considerations
10. Security Considerations
11. References
11.1. Normative References
11.2. Informative References
Appendix A. DetNet Configuration YANG Tree
Appendix B. Examples
B.1. Example A-1: Application Flow Aggregation
B.2. Example B-1: Aggregation Using a Forwarding Sub-layer
B.3. Example B-2: Service Aggregation
B.4. Example C-1: DetNet Relay Service Sub-layer
B.5. Example C-2: DetNet Relay Service Sub-layer Aggregation/
Disaggregation
B.6. Example C-3: DetNet Relay Service Sub-layer Aggregation/
Disaggregation
B.7. Example C-4: DetNet Relay Service Sub-layer Aggregation/
Disaggregation
B.8. Example D-1: Transit Node Forwarding Sub-layer Aggregation/
Disaggregation
Acknowledgments
Contributors
Authors' Addresses
1. Introduction
DetNet (Deterministic Networking) provides the ability to carry
specified unicast or multicast data flows for real-time applications
with extremely low packet loss rates and assured maximum end-to-end
delivery latency. A description of the general background and
concepts of DetNet can be found in [RFC8655].
This document defines a YANG data model for DetNet based on YANG data
types and modeling language defined in [RFC6991] and [RFC7950].
This document also includes the following:
* The DetNet service, which is designed to describe the
characteristics of services being provided for application flows
over a network.
* DetNet configuration, which is designed to provide DetNet flow
path establishment, flow status reporting, and configuration of
DetNet functions in order to achieve end-to-end bounded latency
and zero congestion loss.
This YANG data model is scoped to the description of the aggregation/
disaggregation and data plane capabilities of the DetNet data planes
defined in "Deterministic Networking Architecture" [RFC8655] and
"Deterministic Networking (DetNet) Data Plane Framework" [RFC8938].
DetNet operates at the IP layer and delivers service over lower-layer
technologies such as MPLS and IEEE 802.1 Time-Sensitive Networking
(TSN).
2. Abbreviations
The following abbreviations are used in this document:
PEF: Packet Elimination Function
POF: Packet Ordering Function
PRF: Packet Replication Function
PREOF: Packet Replication, Elimination, and Ordering Functions
MPLS: Multiprotocol Label Switching
3. Terminology
This document uses the terminology defined in [RFC8655]. The terms
"A-Label", "S-Label", and "F-Label" are used in this document as
defined in [RFC8964].
4. DetNet YANG Module
The DetNet YANG module (Section 8) includes DetNet App-flow, DetNet
service sub-layer, and DetNet forwarding sub-layer configuration and
operational objects. The corresponding attributes used in different
sub-layers are defined in Sections 4.1, 4.2, and 4.3, respectively.
Layers of the objects typically occur in the different data instances
forming the node types defined in [RFC8655]. Table 1 illustrates the
relationship between data instance node types and the included
layers. Node types are logical roles per DetNet service: one DetNet
service may use a device of one node type, while another service may
use the same device with a different node type. This model is a
controller-based model, because a controller or operator configures
all of the devices to form a service.
+============================================================+
| Data Instance |
+======================+======================+==============+
| Edge Node | Relay Node | Transit Node |
+======================+======================+==============+
| App-Flow Data Layer | | |
+----------------------+----------------------+--------------+
| Service Sub-layer | Service Sub-layer | |
+----------------------+----------------------+--------------+
| Forwarding Sub-layer | Forwarding Sub-layer | Forwarding |
| | | Sub-layer |
+----------------------+----------------------+--------------+
Table 1: DetNet Layers and Node Types
All of the layers have ingress/incoming and egress/outgoing
operations, but any instance may be configured as unidirectional
only. "Ingress" refers to any DetNet layer where a DetNet context is
applied. Ingress allows functions such as switching, aggregation,
and encapsulation. "Egress" refers to any DetNet layer where a
DetNet context is removed. Egress allows functions such as
switching, disaggregation, and decapsulation. This means that each
unidirectional flow identifier configuration is programmed starting
at the ingress and flow status is reported at the ingress on each
end. In the case of MPLS, once encapsulated, the IP 6-tuple
parameters (see [RFC8938]) may not be required to be programmed
again. In the case of IP, without encapsulation, various IP flow
identification parameters must be configured along the flow path.
In the YANG data model defined in this document, the terms "source"
and "destination" are used as flow identifiers, whereas "ingress" and
"egress" refer to a DetNet application direction from the application
edge. "Ingress" means "to the DetNet application", and "egress"
means "from the application". The terms "incoming" and "outgoing"
represent the flow direction towards the remote application as a
unidirectional flow. This means the terms are used at a sub-layer to
represent "incoming" to the sub-layer function and "outgoing" is
viewed as leaving the sub-layer. For the service sub-layer,
"incoming" is typically aggregating applications flows or other
service sub-layers, etc. For the forwarding sub-layer, "incoming" is
typically aggregating service sub-layers. However, this also means
for both service and forwarding sub-layers at the egress DetNet node
"incoming" also handles external flows "incoming" to the respective
sub-layer. For MPLS, this would usually involve the removal of a
label. For IP -- where the representative sub-layer is merely an
aggregation of an IP prefix or IP tuple -- there may be no incoming/
outgoing definitions, since the arriving packet can be handled
directly by a standard next-hop routing decision. In examples
(Appendix B) where both aggregation and disaggregation take place, at
the egress of the flow "outgoing" relates to the aggregating output
and "incoming" relates to the disaggregating flows.
At the egress point, forwarding information is determined by the App-
flow type with all DetNet-related headers removed. In the case of
IP, the forwarding information can specify an output port or set a
next-hop address. In the case of MPLS, it can set an MPLS label.
4.1. DetNet Application Flow YANG Attributes
DetNet application flows are responsible for mapping between
application flows and DetNet flows at the edge node (egress/ingress
node). The application flows can be either Layer 2 or Layer 3 flows.
To map a flow at the User-Network Interface (UNI), the corresponding
attributes defined in [RFC9016] are used.
4.2. DetNet Service Sub-layer YANG Attributes
DetNet service functions, e.g., DetNet tunnel initialization/
termination and service protection, are provided in the DetNet
service sub-layer. To support these functions, the following service
attributes need to be configured:
* DetNet flow identification.
* Service function type. Indicates which service function will be
invoked at a DetNet edge, relay node, or end station. (DetNet
tunnel initialization and termination are default functions in the
DetNet service sub-layer, so there is no need to indicate them
explicitly.) The corresponding arguments for service functions
also need to be defined.
4.3. DetNet Forwarding Sub-layer YANG Attributes
As defined in [RFC8655], the DetNet forwarding sub-layer optionally
provides congestion protection for DetNet flows over paths provided
by the underlying network. Explicit routes provide another mechanism
used by DetNet to avoid temporary interruptions caused by the
convergence of routing or bridging protocols. Explicit routes are
also implemented at the DetNet forwarding sub-layer.
To support congestion protection and explicit routes, the following
transport-layer-related attributes are necessary:
* Flow specification and traffic requirements are as described in
the information model provided in [RFC9016]. These may be used
for resource reservation, flow shaping, filtering, and policing by
a control plane or other network management and control
mechanisms.
* Since this model programs the data plane, existing explicit route
mechanisms can be reused. If a static MPLS tunnel is used as the
transport tunnel, the configuration needs to be at every transit
node along the path. For an IP-based path, the static
configuration is similar to the static MPLS case. This document
provides data plane configuration of IP addresses or MPLS labels,
but it does not provide control plane mapping or other techniques.
5. DetNet Flow Aggregation
DetNet provides the ability to perform flow aggregation to improve
the scalability of DetNet data, management, and control planes.
Aggregated flows can be viewed by some DetNet nodes as individual
DetNet flows. When aggregating DetNet flows, the flows should be
compatible: if bandwidth reservation is used, the reservation should
be a reasonable representation of the total aggregate bandwidth; if
maximum delay bounds are used, the system should ensure that the
total DetNet flow delay does not exceed the maximum delay bound of
any individual flow.
The DetNet YANG data model defined in this document supports DetNet
flow aggregation with the following functions:
* Aggregated flow encapsulation/decapsulation/identification.
* Mapping individual DetNet flows to an aggregated flow.
* Changing traffic specification parameters for aggregated flows.
The following DetNet aggregation scenarios are supported:
* The ingress node aggregates App-flows into a service sub-layer of
a DetNet flow.
* In the ingress node, the service sub-layers of DetNet flows are
aggregated into a forwarding sub-layer.
* In the ingress node, the service sub-layers of DetNet flows are
aggregated into a service sub-layer of an aggregated DetNet flow.
* The relay node aggregates the forwarding sub-layers of DetNet
flows into a forwarding sub-layer.
* The relay node aggregates the service sub-layers of DetNet flows
into a forwarding sub-layer.
* The relay node aggregates the service sub-layers of DetNet flows
into a service sub-layer of an aggregated DetNet flow.
* The relay node aggregates the forwarding sub-layers of DetNet
flows into a service sub-layer of an aggregated DetNet flow.
* The transit node aggregates the forwarding sub-layers of DetNet
flows into a forwarding sub-layer.
Traffic requirements and the traffic specification may be tracked for
individual or aggregate flows, but reserving resources and tracking
the services in the aggregated flow are out of scope.
6. DetNet YANG Structure Considerations
This diagram shows the general structure of the DetNet YANG data
model:
+-----------+
|ietf-detnet|
+-----+-----+
|
+--------------+----------------+------------------+
| | | |
+-----+------+ +-----+------+ +-------+------+ |
| App- | | Service | | Forwarding | |
| Flows | | Sub-layer | | Sub-layer | |
+-----+------+ +-----+------+ +-------+------+ |
| | | |
+-----+------+ +-----+------+ +-------+------+ |
| Reference | | Reference | | Reference | |
| to Traffic | | to Traffic | | to Traffic | +-------+-------+
| Profile | | Profile | | Profile | |Traffic Profile|
+------------+ +------------+ +--------------+ +---------------+
There are three layer types in the DetNet YANG data model: the App-
flow data layer, the service sub-layer, and the forwarding sub-layer.
Additionally, the traffic parameters are captured in a traffic
profile that can be referenced by any of the layers.
Below is a summary YANG tree showing the major items. The complete
YANG tree is provided in Appendix A.
A traffic profile can be created for an application, a service sub-
layer, or a forwarding sub-layer. A single profile may be shared by
multiple applications/sub-layers. Each profile indicates the members
currently using that profile.
Depending on which DetNet layers and functions are required, some or
all of the components may be configured. Examples are provided in
Appendix B.
7. DetNet Configuration YANG Structures
The following is a partial tree representation of the DetNet YANG
data model, per the guidelines provided in [RFC8340]. This
corresponds to the layout of the diagram in Section 6.
module: ietf-detnet
+--rw detnet
+--rw traffic-profile* [name]
| +--rw name string
| +--rw traffic-requirements
| +--rw traffic-spec
| +--ro member-app-flow* app-flow-ref
| +--ro member-svc-sublayer* service-sub-layer-ref
| +--ro member-fwd-sublayer* forwarding-sub-layer-ref
+--rw app-flows
| +--rw app-flow* [name]
| +--rw name string
| +--rw bidir-congruent? boolean
| +--ro outgoing-service? service-sub-layer-ref
| +--ro incoming-service? service-sub-layer-ref
| +--rw traffic-profile? traffic-profile-ref
| +--rw ingress
| | ...
| +--rw egress
| ...
+--rw service
| +--rw sub-layer* [name]
| +--rw name string
| +--rw service-rank? uint8
| +--rw traffic-profile? traffic-profile-ref
| +--rw service-protection
| | ...
| +--rw operation? operation
| +--rw incoming
| | ...
| +--rw outgoing
| ...
+--rw forwarding
+--rw sub-layer* [name]
+--rw name string
+--rw traffic-profile? traffic-profile-ref
+--rw operation? mpls-fwd-operation
+--rw incoming
| ...
+--rw outgoing
...
8. DetNet Configuration YANG Data Model
This YANG data model imports typedefs from [RFC6991], [RFC8519],
[RFC8294], [RFC8343], and [IEEE8021Q-2022]. This YANG data model
also includes the following RFC references, which are not cited
elsewhere in the body of this document: [RFC0791], [RFC4303],
[RFC8200], [RFC8349], and [RFC8960].
<CODE BEGINS> file "ietf-detnet@2024-08-15.yang"
module ietf-detnet {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-detnet";
prefix dnet;
import ietf-yang-types {
prefix yang;
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-inet-types {
prefix inet;
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-ethertypes {
prefix ethertypes;
reference
"RFC 8519: YANG Data Model for Network Access Control
Lists (ACLs)";
}
import ietf-routing-types {
prefix rt-types;
reference
"RFC 8294: Common YANG Data Types for the Routing Area";
}
import ietf-packet-fields {
prefix packet-fields;
reference
"RFC 8519: YANG Data Model for Network Access Control
Lists (ACLs)";
}
import ietf-interfaces {
prefix if;
reference
"RFC 8343: A YANG Data Model for Interface Management";
}
import ieee802-dot1q-types {
prefix dot1q-types;
reference
"IEEE 802.1Q-2022: IEEE Standard for Local and Metropolitan
Area Networks--Bridges and Bridged Networks,
Clause 48 ('YANG Data Models')";
}
organization
"IETF DetNet Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/detnet/>
WG List: <mailto:detnet@ietf.org>
Author: Xuesong Geng
<mailto:gengxuesong@huawei.com>
Author: Yeoncheol Ryoo
<mailto:dbduscjf@etri.re.kr>
Author: Don Fedyk
<mailto:dfedyk@labn.net>
Author: Reshad Rahman
<mailto:reshad@yahoo.com>
Author: Zhenqiang Li
<mailto:lizhenqiang@chinamobile.com>";
description
"This YANG module describes the parameters needed
for DetNet flow configuration and flow status
reporting. This YANG module conforms to the Network
Management Datastore Architecture (NMDA).
Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject
to the license terms contained in, the Revised BSD License
set forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC 9633; see the
RFC itself for full legal notices.";
revision 2024-08-15 {
description
"Initial revision.";
reference
"RFC 9633: Deterministic Networking (DetNet) YANG Data
Model";
}
identity app-status {
description
"Base identity from which all application status types
are derived.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.8";
}
identity none {
base app-status;
description
"This application has no status. This identity is
expected when the configuration is incomplete.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.8";
}
identity ready {
base app-status;
description
"The application is ingress/egress ready.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.8";
}
identity failed {
base app-status;
description
"The application is ingress/egress failed.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.8";
}
identity out-of-service {
base app-status;
description
"The application is administratively blocked.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.8";
}
identity partial-failed {
base app-status;
description
"This is an application with one or more egress-ready
instances and one or more instances where egress failed.
The DetNet flow can be used if the ingress's status is
'ready'.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.8";
}
typedef app-flow-ref {
type leafref {
path "/dnet:detnet"
+ "/dnet:app-flows"
+ "/dnet:app-flow"
+ "/dnet:name";
}
description
"This is a reference to an application.";
}
typedef service-sub-layer-ref {
type leafref {
path "/dnet:detnet"
+ "/dnet:service"
+ "/dnet:sub-layer"
+ "/dnet:name";
}
description
"This is a reference to the service sub-layer.";
}
typedef forwarding-sub-layer-ref {
type leafref {
path "/dnet:detnet"
+ "/dnet:forwarding"
+ "/dnet:sub-layer"
+ "/dnet:name";
}
description
"This is a reference to the forwarding sub-layer.";
}
typedef traffic-profile-ref {
type leafref {
path "/dnet:detnet"
+ "/dnet:traffic-profile"
+ "/dnet:name";
}
description
"This is a reference to a traffic profile.";
}
typedef ipsec-spi {
type uint32 {
range "1..max";
}
description
"IPsec Security Parameters Index. A 32-bit value,
where some values are reserved.";
reference
"RFC 4303: IP Encapsulating Security Payload (ESP)";
}
typedef operation {
type enumeration {
enum initiation {
description
"An initiating service sub-layer encapsulation.";
}
enum termination {
description
"Operation for DetNet service sub-layer decapsulation.";
}
enum relay {
description
"Operation for DetNet service sub-layer swap.";
}
enum non-detnet {
description
"No operation for the DetNet service sub-layer.";
}
}
description
"The operation type identifies this service sub-layer's
behavior. Operations are described as unidirectional,
but a service sub-layer may combine operation types.";
}
typedef mpls-fwd-operation {
type enumeration {
enum impose-and-forward {
description
"This operation imposes one or more outgoing labels and
forwards to the next hop.";
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
enum pop-and-forward {
description
"This operation pops the incoming label and forwards to
the next hop.";
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
enum pop-impose-and-forward {
description
"This operation pops the incoming label, imposes one or
more outgoing labels, and forwards to the next hop.";
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
enum swap-and-forward {
description
"This operation swaps an incoming label with an outgoing
label and forwards to the next hop.";
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
enum forward {
description
"This operation forwards to the next hop.";
}
enum pop-and-lookup {
description
"This operation pops an incoming label and performs a
lookup.";
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
}
description
"MPLS operation types. This set of enums is modeled after
the MPLS enums. With the exception of 'enum forward',
these enums are the same as those provided in RFC 8960.";
reference
"RFC 8960: A YANG Data Model for MPLS Base";
}
typedef service-protection {
type enumeration {
enum none {
description
"Service protection is not provided.";
}
enum replication {
description
"A Packet Replication Function (PRF) replicates DetNet
flow packets and forwards them to one or more next
hops in the DetNet domain. The number of packet copies
sent to each next hop is a DetNet-flow-specific
parameter at the node doing the replication. A PRF can
be implemented by an edge node, a relay node, or an
end system.";
}
enum elimination {
description
"A Packet Elimination Function (PEF) eliminates
duplicate copies of packets to prevent excess packets
flooding the network or duplicate packets being
sent out of the DetNet domain. A PEF can be
implemented by an edge node, a relay node, or an
end system.";
}
enum ordering {
description
"A Packet Ordering Function (POF) reorders packets within
a DetNet flow that are received out of order. This
function can be implemented by an edge node, a relay node,
or an end system.";
}
enum elimination-ordering {
description
"A combination of a PEF and POF that can be implemented
by an edge node, a relay node, or an end system.";
}
enum elimination-replication {
description
"A combination of a PEF and PRF that can be implemented
by an edge node, a relay node, or an end system.";
}
enum elimination-ordering-replication {
description
"A combination of a PEF, POF, and PRF that can be
implemented by an edge node, a relay node, or
an end system.";
}
}
description
"This typedef describes the service protection enumeration
values.";
}
typedef sequence-number-generation {
type enumeration {
enum copy-from-app-flow {
description
"'copy-from-app-flow' is used to utilize the sequence
number present in the App-flow. This function is
required when encapsulating App-flows that have been
replicated and received through multiple ingress nodes
into a member flow. When a relay node sees the same
sequence number on an App-flow, it may be programmed
to eliminate duplicate App-flow packets.";
}
enum generate-by-detnet-flow {
description
"'generate-by-detnet-flow' is used to create a new
sequence number for a DetNet flow at the ingress node.
Care must be taken when using this option to ensure
that there is only one source for generating sequence
numbers.";
}
}
description
"This typedef defines how to generate sequence numbers to
be used in DetNet encapsulation.";
}
typedef sequence-number-field {
type enumeration {
enum zero-sn {
description
"The DetNet sequence number field is not used.";
}
enum short-sn {
value 16;
description
"A 16-bit DetNet sequence number field is used.";
}
enum long-sn {
value 28;
description
"A 28-bit DetNet sequence number field is used.";
}
}
description
"These enums configure the behavior of the
sequence number field.";
}
grouping ip-header {
description
"This grouping captures the IPv4/IPv6 packet header
information. It is modeled after existing fields.";
leaf src-ip-address {
type inet:ip-address-no-zone;
description
"The source IP address in the header.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf dest-ip-address {
type inet:ip-address-no-zone;
description
"The destination IP address in the header.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf protocol-next-header {
type uint8;
description
"In IPv4, this field refers to the protocol of the
payload. In IPv6, this field is known as
'next-header'; it identifies the type of header
immediately following the IPv6 header.";
reference
"RFC 791: Internet Protocol
RFC 8200: Internet Protocol, Version 6 (IPv6)
Specification";
}
leaf dscp {
type inet:dscp;
description
"The traffic class value in the header.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf flow-label {
type inet:ipv6-flow-label;
description
"The flow label value in the header. IPv6 only.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf source-port {
type inet:port-number;
description
"The source port number.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf destination-port {
type inet:port-number;
description
"The destination port number.";
reference
"RFC 6991: Common YANG Data Types";
}
}
grouping l2-header {
description
"The Ethernet or Time-Sensitive Networking (TSN) packet
header information.";
leaf source-mac-address {
type yang:mac-address;
description
"The source Media Access Control (MAC) address value of
the Ethernet header.";
}
leaf destination-mac-address {
type yang:mac-address;
description
"The destination MAC address value of the Ethernet
header.";
}
leaf ethertype {
type ethertypes:ethertype;
description
"The Ethernet packet type value of the Ethernet header.";
}
leaf vlan-id {
type dot1q-types:vlanid;
description
"The VLAN value of the Ethernet header.";
reference
"IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
leaf pcp {
type dot1q-types:priority-type;
description
"The priority value of the Ethernet header.";
reference
"IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
}
grouping destination-ip-port-id {
description
"The TCP/UDP port destination identification information.";
container destination-port {
uses packet-fields:port-range-or-operator;
description
"This grouping captures the destination port fields.";
}
}
grouping source-ip-port-id {
description
"The TCP/UDP port source identification information.";
container source-port {
uses packet-fields:port-range-or-operator;
description
"This grouping captures the source port fields.";
}
}
grouping ip-flow-id {
description
"The IPv4/IPv6 packet header identification information.";
leaf src-ip-prefix {
type inet:ip-prefix;
description
"The source IP prefix.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf dest-ip-prefix {
type inet:ip-prefix;
description
"The destination IP prefix.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf protocol-next-header {
type uint8;
description
"Internet Protocol number. Refers to the protocol of the
payload. In IPv6, this field is known as 'next-header';
if extension headers are present, the protocol is present
in the 'upper-layer' header.";
reference
"RFC 791: Internet Protocol
RFC 8200: Internet Protocol, Version 6 (IPv6)
Specification";
}
leaf dscp {
type inet:dscp;
description
"The traffic class value in the header.";
reference
"RFC 6991: Common YANG Data Types";
}
leaf flow-label {
type inet:ipv6-flow-label;
description
"The flow label value in the header. IPv6 only.";
reference
"RFC 6991: Common YANG Data Types";
}
uses source-ip-port-id;
uses destination-ip-port-id;
leaf ipsec-spi {
type ipsec-spi;
description
"IPsec Security Parameters Index of the Security
Association.";
reference
"RFC 4303: IP Encapsulating Security Payload (ESP)";
}
}
grouping mpls-flow-id {
description
"The MPLS packet header identification information.";
choice label-space {
description
"Designates the label space being used.";
case context-label-space {
uses rt-types:mpls-label-stack;
}
case platform-label-space {
leaf label {
type rt-types:mpls-label;
description
"This is the case for the platform label space.";
}
}
}
}
grouping data-flow-spec {
description
"App-flow identification.";
choice data-flow-type {
description
"The application flow type choices.";
container tsn-app-flow {
uses l2-header;
description
"The L2 header for the application.";
}
container ip-app-flow {
uses ip-flow-id;
description
"The IP header for the application.";
}
container mpls-app-flow {
uses mpls-flow-id;
description
"The MPLS header for the application.";
}
}
}
grouping detnet-flow-spec {
description
"DetNet flow identification.";
choice detnet-flow-type {
description
"The DetNet flow type choices.";
case ip-detnet-flow {
uses ip-flow-id;
}
case mpls-detnet-flow {
uses mpls-flow-id;
}
}
}
grouping app-flows-group {
description
"Reference group for incoming or outgoing App-flows.";
leaf-list flow {
type app-flow-ref;
description
"List of ingress or egress App-flows.";
}
}
grouping service-sub-layer-group {
description
"Reference group for incoming or outgoing
service sub-layers.";
leaf-list sub-layer {
type service-sub-layer-ref;
description
"List of incoming or outgoing service sub-layers that
have to aggregate or disaggregate.";
}
}
grouping forwarding-sub-layer-group {
description
"Reference group for incoming or outgoing
forwarding sub-layers.";
leaf-list sub-layer {
type forwarding-sub-layer-ref;
description
"List of incoming or outgoing forwarding sub-layers that
have to aggregate or disaggregate.";
}
}
grouping detnet-header {
description
"DetNet header information for DetNet encapsulation
or swap.";
choice header-type {
description
"The choice of DetNet header type.";
case mpls {
description
"MPLS label stack for DetNet MPLS encapsulation or
forwarding.";
uses rt-types:mpls-label-stack;
}
case ip {
description
"IPv4/IPv6 packet header for DetNet IP encapsulation.";
uses ip-header;
}
}
}
grouping detnet-app-next-hop-content {
description
"Generic parameters for DetNet next hops. These follow the
principles for next hops as discussed in RFC 8349.";
reference
"RFC 8349: A YANG Data Model for Routing Management
(NMDA Version)";
choice next-hop-options {
description
"Options for next hops. It is expected that further
cases will be added through augments from other modules,
e.g., for recursive next hops.";
case simple-next-hop {
description
"This case represents a simple next hop consisting of
the next-hop address and/or outgoing interface.";
leaf outgoing-interface {
type if:interface-ref;
description
"The outgoing interface, when matching all flows to
the interface.";
}
choice flow-type {
description
"The flow type choices.";
case ip {
leaf next-hop-address {
type inet:ip-address;
description
"The IP next-hop case.";
}
}
case mpls {
uses rt-types:mpls-label-stack;
description
"The MPLS label stack next-hop case.";
}
}
}
case next-hop-list {
description
"Container for multiple next hops.";
list next-hop {
key "hop-index";
description
"An entry in a next-hop list.";
leaf hop-index {
type uint8;
description
"A user-specified identifier utilized to uniquely
reference the next-hop entry in the next-hop list.
The value of this index has no semantic meaning other
than for referencing the entry.";
}
leaf outgoing-interface {
type if:interface-ref;
description
"The outgoing interface, when matching all flows to
the interface.";
}
choice flow-type {
description
"The flow types supported.";
case ip {
leaf next-hop-address {
type inet:ip-address;
description
"This is the IP flow type next hop.";
}
}
case mpls {
uses rt-types:mpls-label-stack;
}
}
}
}
}
}
grouping detnet-forwarding-next-hop-content {
description
"Generic parameters for DetNet next hops. These follow the
principles for next hops as discussed in RFC 8349.";
reference
"RFC 8349: A YANG Data Model for Routing Management
(NMDA Version)";
choice next-hop-options {
description
"Options for next hops. It is expected that further
cases will be added through augments from other modules,
e.g., for recursive next hops.";
case simple-next-hop {
description
"This case represents a simple next hop consisting of
the next-hop address and/or outgoing interface.";
leaf outgoing-interface {
type if:interface-ref;
description
"The outgoing interface, when matching all flows to
the interface.";
}
choice flow-type {
description
"These are the flow type next-hop choices.";
case ip {
description
"Use the IP data plane for forwarding.";
leaf next-hop-address {
type inet:ip-address;
description
"This is an IP address as a next hop.";
}
uses ip-header;
}
case mpls {
description
"Use the MPLS data plane for forwarding.";
uses rt-types:mpls-label-stack;
}
}
}
case next-hop-list {
description
"Container for multiple next hops.";
list next-hop {
key "hop-index";
description
"An entry in a next-hop list.";
leaf hop-index {
type uint8;
description
"The value of the index for a next hop.";
}
leaf outgoing-interface {
type if:interface-ref;
description
"The outgoing interface, when matching all flows to
the interface.";
}
choice flow-type {
description
"These are the flow type next-hop choices.";
case ip {
description
"Use the IP data plane for forwarding.";
leaf next-hop-address {
type inet:ip-address;
description
"This is an IP address as a next hop.";
}
uses ip-header;
}
case mpls {
description
"Use the MPLS data plane for forwarding.";
uses rt-types:mpls-label-stack;
}
}
}
}
}
}
container detnet {
description
"The top-level DetNet container. This contains
applications, service sub-layers, and forwarding sub-layers
as well as the traffic profiles.";
list traffic-profile {
key "name";
description
"A traffic profile.";
leaf name {
type string;
description
"The name of the traffic profile that is used as a
reference to this profile.";
}
container traffic-requirements {
description
"This defines the attributes of the App-flow
regarding bandwidth, latency, latency variation, loss,
and misordering tolerance.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9";
leaf min-bandwidth {
type uint64;
units "octets per second";
description
"This is the minimum bandwidth that has to be
guaranteed for the DetNet service. MinBandwidth is
specified in octets per second.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9.1";
}
leaf max-latency {
type uint32;
units "nanoseconds";
description
"This is the maximum latency from the ingress to
one or more egresses for a single packet of the
DetNet flow. MaxLatency is specified as an
integer number of nanoseconds. The maximum value
for this parameter is 4,294,967,295 nanoseconds.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9.2";
}
leaf max-latency-variation {
type uint32;
units "nanoseconds";
description
"This is the difference between the
minimum and maximum end-to-end one-way latency.
MaxLatencyVariation is specified as an integer
number of nanoseconds.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9.3";
}
leaf max-loss {
type decimal64 {
fraction-digits 10;
range "0 .. 100";
}
units "percent";
description
"This defines the maximum Packet Loss Rate (PLR)
parameter for the DetNet service between the ingress
and one or more egresses of the DetNet domain. The
PLR is calculated by the number of transmitted
packets minus the number of received packets divided
by the number of transmitted packets, expressed as a
percentage.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9.4";
}
leaf max-consecutive-loss-tolerance {
type uint32;
units "packets";
description
"Some applications have special loss requirements
and use such parameters as
MaxConsecutiveLossTolerance.
'max-consecutive-loss-tolerance' describes the
maximum number of consecutive packets whose loss
can be tolerated. The maximum consecutive loss
tolerance can be measured, for example, based on
sequence number.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9.5";
}
leaf max-misordering {
type uint32;
units "packets";
description
"This describes the maximum tolerable number of
packets that can be received out of order. The
maximum allowed misordering can be measured, for
example, based on sequence number. A value of '0'
for the maximum allowed misordering indicates that
in-order delivery is required and misordering cannot
be tolerated.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.9.6";
}
}
container traffic-spec {
description
"'traffic-spec' specifies how the source transmits
packets for the flow. This is the promise/request of
the source to the network. The network uses this flow
specification to allocate resources and adjust queue
parameters in network nodes.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.5";
leaf interval {
type uint32;
units "nanoseconds";
description
"The period of time during which the traffic
specification should not be exceeded.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.5
IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
leaf max-pkts-per-interval {
type uint32;
description
"The maximum number of packets that the
source will transmit in one interval.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.5
IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
leaf max-payload-size {
type uint32;
description
"The maximum payload size that the source
will transmit.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.5
IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
leaf min-payload-size {
type uint32;
description
"The minimum payload size that the source
will transmit.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.5
IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
leaf min-pkts-per-interval {
type uint32;
description
"The minimum number of packets that the
source will transmit in one interval.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.5
IEEE 802.1Q-2022: IEEE Standard for Local and
Metropolitan Area Networks--Bridges and Bridged
Networks";
}
}
leaf-list member-app-flow {
type app-flow-ref;
config false;
description
"A list of applications attached to this profile. Each
application that uses a profile has an automatically
populated reference.";
reference
"RFC 9633: Deterministic Networking (DetNet) YANG Data
Model, Section 6"; Sections 6 and 7";
}
leaf-list member-svc-sublayer {
type service-sub-layer-ref;
config false;
description
"A list of service sub-layers attached to this profile.
Each service sub-layer that uses a profile has an
automatically populated reference.";
reference
"RFC 9633: Deterministic Networking (DetNet) YANG Data
Model, Section 6"; Sections 6 and 7";
}
leaf-list member-fwd-sublayer {
type forwarding-sub-layer-ref;
config false;
description
"A list of forwarding sub-layers attached to this profile.
Each forwarding sub-layer that uses a profile has an
automatically populated reference.";
reference
"RFC 9633: Deterministic Networking (DetNet) YANG Data
Model, Section 6"; Sections 6 and 7";
}
}
container app-flows {
description
"Configuration information for DetNet App-flows.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 4.1";
list app-flow {
key "name";
description
"A unique (management) identifier of the App-flow.";
leaf name {
type string;
description
"A unique (management) identifier of the App-flow.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Sections 4.1
and 5.1";
}
leaf bidir-congruent {
type boolean;
default "false";
description
"Defines the data path requirement of the App-flow -
whether it must share the same data path and physical
path for both directions through the network, e.g.,
to provide congruent paths in the two directions.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 4.2";
}
leaf outgoing-service {
type service-sub-layer-ref;
config false;
description
"Binding to this application's outgoing service.";
}
leaf incoming-service {
type service-sub-layer-ref;
config false;
description
"Binding to this application's incoming service.";
}
leaf traffic-profile {
type traffic-profile-ref;
description
"The traffic profile for this group.";
}
container ingress {
description
"Ingress DetNet application flows or a
compound flow.";
leaf app-flow-status {
type identityref {
base app-status;
}
default "none";
config false;
description
"Status of an ingress application flow. This is an
operational status and defaults to 'none' if
incomplete.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Sections 4.1
and 5.8";
}
leaf-list interface {
type if:interface-ref;
description
"An interface is optional for a service type.
When matching a flow to a single interface,
one interface is specified. This list allows
the matching of a subset of interfaces.
When more than one interface is specified, these
flows are simply aggregated, and the service
sub-layer is unaware of the aggregation.";
}
uses data-flow-spec;
}
container egress {
description
"Egress DetNet application flows or a compound flow.";
uses data-flow-spec;
choice application-type {
description
"The application type choices.";
container ethernet {
description
"Ethernet or TSN traffic that maps to an
interface.";
leaf-list interface {
type if:interface-ref;
description
"One or more Ethernet or TSN interfaces.
If multiple interfaces are specified, this
application flow is replicated to those
interfaces. DetNet application flow filtering
applies to the whole list of interfaces.
For fine-grained flow filtering, use a single
interface per application.";
}
}
container ip-mpls {
description
"IP or MPLS DetNet application types.";
uses detnet-app-next-hop-content;
}
}
}
}
}
container service {
description
"The DetNet service sub-layer configuration.";
list sub-layer {
key "name";
description
"Services are indexed by name.";
leaf name {
type string;
description
"The name of the DetNet service sub-layer.";
}
leaf service-rank {
type uint8;
default "255";
description
"The DetNet rank for this service. Defaults to '255'
(lowest rank) if not specified.";
reference
"RFC 9016: Flow and Service Information Model for
Deterministic Networking (DetNet), Section 5.7";
}
leaf traffic-profile {
type traffic-profile-ref;
description
"The traffic profile for this service.";
}
container service-protection {
description
"The service protection type and sequence number
options.";
leaf protection {
type service-protection;
description
"The DetNet service protection type, such as
the Packet Replication Function (PRF), the
Packet Elimination Function (PEF), or the
Packet Replication, Elimination, and Ordering
Functions (PREOF).";
reference
"RFC 8938: Deterministic Networking (DetNet)
Data Plane Framework, Section 4.3";
}
leaf sequence-number-length {
type sequence-number-field;
default "zero-sn";
description
"The sequence number field length can be one of
0 (none), 16 bits, or 28 bits. The default is
0 (none).";
}
}
leaf operation {
type operation;
description
"This is the service operation type for this service
sub-layer.";
}
container incoming {
description
"The DetNet service sub-layer incoming configuration.";
choice incoming {
description
"A service sub-layer may have App-flows or other
service sub-layers.";
container app-flow {
description
"This service sub-layer is related to the
App-flow of the upper layer and provides an
ingress proxy or ingress aggregation at the
ingress node.";
uses app-flows-group;
}
container service-aggregation {
description
"This service sub-layer is related to the service
sub-layer of the upper layer and provides
service-to-service aggregation at the
ingress node or relay node.";
uses service-sub-layer-group;
}
container forwarding-aggregation {
description
"This service sub-layer is related to the
forwarding sub-layer of the upper layer and
provides forwarding-to-service aggregation at
the ingress node or relay node.";
uses forwarding-sub-layer-group;
}
container service-id {
description
"This service sub-layer is related to the service
or forwarding sub-layer of the lower layer and
provides DetNet service relay or termination at
the relay node or egress node.";
uses detnet-flow-spec;
}
container forwarding-sub-layer {
description
"This entry specifies one or more forwarding
sub-layers. No or minimal service sub-layer
encapsulation is allowed.";
leaf-list sub-layer {
type forwarding-sub-layer-ref;
config false;
description
"List of outgoing forwarding sub-layers.";
}
}
}
}
container outgoing {
description
"The DetNet service sub-layer outgoing
configuration.";
choice outgoing {
description
"The outgoing type may be a forwarding sub-layer, a
service sub-layer, or an aggregation type.";
container forwarding-sub-layer {
description
"This service sub-layer is sending to the
forwarding sub-layer of the lower layer
for DetNet service forwarding or
service-to-forwarding aggregation at the
ingress node or relay node. When the
operation type is 'initiation', the
service sub-layer encapsulates the DetNet
Control Word (d-CW) and S-Label, which are for
individual DetNet flows when the incoming type
is 'app-flow' and for an aggregated DetNet flow
when the incoming type is 'service' or
'forwarding'. The service sub-layer swaps the
service label when the operation type is
'relay'.";
reference
"RFC 8964: Deterministic Networking (DetNet)
Data Plane: MPLS, Sections 4.2.1 and 4.2.2";
list service-outgoing {
key "index";
description
"List of outgoing service sub-layers aggregated
in the forwarding sub-layer.";
leaf index {
type uint8;
description
"This index allows a list of multiple outgoing
forwarding sub-layers.";
}
uses detnet-header;
uses forwarding-sub-layer-group;
}
}
container service-sub-layer {
description
"This service sub-layer is sending to the
service sub-layer of the lower layer for
service-to-service aggregation at the
ingress node or relay node. The service
sub-layer encapsulates the d-CW and S-Label when
the operation type is 'initiation' and
swaps the S-Label when the operation type is
'relay'.";
reference
"RFC 8964: Deterministic Networking (DetNet)
Data Plane: MPLS, Sections 4.2.1 and 4.2.2";
leaf aggregation-sub-layer {
type service-sub-layer-ref;
description
"Reference point of the service-sub-layer
at which this service will be aggregated.";
}
container service-label {
description
"This is the MPLS service sub-layer label. This
is optional and is only used when the service
sub-layer uses MPLS. It is an MPLS stack,
since more than a single label may be used.";
uses rt-types:mpls-label-stack;
}
}
container app-flow {
description
"This service sub-layer is sending to the
App-flow of the upper layer for the
egress proxy at the egress node. It then
decapsulates the d-CW and S-Label for an
individual DetNet service. This outgoing type
can only be chosen when the operation type is
'termination'.";
reference
"RFC 8964: Deterministic Networking (DetNet)
Data Plane: MPLS, Sections 4.2.1 and 4.2.2";
uses app-flows-group;
}
container service-disaggregation {
description
"This service sub-layer is sending to the
service sub-layer of the upper layer for
service-to-service disaggregation at the
relay node or egress node. It then
decapsulates the d-CW and A-Label for an
aggregated DetNet service. This outgoing type
can only be chosen when the operation type is
'termination'.";
reference
"RFC 8964: Deterministic Networking (DetNet)
Data Plane: MPLS, Sections 3.1 and 4.4.2";
uses service-sub-layer-group;
}
container forwarding-disaggregation {
description
"This service sub-layer is sending to the
forwarding sub-layer of the upper layer for
forwarding-to-service disaggregation at the
relay node or egress node. It then
decapsulates the d-CW and A-Label for an
aggregated DetNet service. This outgoing type
can only be chosen when the operation type is
'termination'.";
reference
"RFC 8964: Deterministic Networking (DetNet)
Data Plane: MPLS, Sections 3.1 and 4.4.2";
uses forwarding-sub-layer-group;
}
}
}
}
}
container forwarding {
description
"The DetNet forwarding sub-layer configuration.";
list sub-layer {
key "name";
description
"List of one or more DetNet service/forwarding
types.";
leaf name {
type string;
description
"The name of the DetNet forwarding sub-layer.";
}
leaf traffic-profile {
type traffic-profile-ref;
description
"The traffic profile for this group.";
}
leaf operation {
type mpls-fwd-operation;
description
"The forwarding operation types
'impose-and-forward', 'pop-and-forward',
'pop-impose-and-forward', 'forward', and
'pop-and-lookup'.";
}
container incoming {
description
"The DetNet forwarding sub-layer incoming
configuration.";
choice incoming {
description
"Choices of incoming types.";
container service-sub-layer {
description
"This forwarding sub-layer is related to the
service sub-layer of the upper layer and
provides DetNet forwarding or
service-to-forwarding aggregation at
the ingress node or relay node.";
uses service-sub-layer-group;
}
container forwarding-aggregation {
description
"This forwarding sub-layer is related to the
forwarding sub-layer of the upper layer and
provides forwarding-to-forwarding aggregation at
the ingress node, relay node, or transit node.";
uses forwarding-sub-layer-group;
}
container forwarding-id {
description
"This forwarding sub-layer is related to all of
the lower layers and provides DetNet forwarding
swap or termination at the transit node,
relay node, or egress node.";
leaf interface {
type if:interface-ref;
description
"This is the interface associated with the
forwarding sub-layer.";
}
uses detnet-flow-spec;
}
}
}
container outgoing {
description
"The DetNet forwarding sub-layer outbound
configuration.";
choice outgoing {
description
"A service is connected directly to an
interface with no forwarding sub-layer.";
container interface {
description
"This forwarding sub-layer is sending to the
interface, for sending to the next hop at the
ingress node, relay node, or transit node.";
uses detnet-forwarding-next-hop-content;
}
container service-aggregation {
description
"This forwarding sub-layer is sending to the service
sub-layers of the lower layer for
forwarding-to-service aggregation at the ingress
node or relay node.";
leaf aggregation-sub-layer {
type service-sub-layer-ref;
description
"This is a reference to the service sub-layer.";
}
container optional-forwarding-label {
description
"This is the optional forwarding label for service
aggregation.";
uses rt-types:mpls-label-stack;
}
}
container forwarding-sub-layer {
description
"This forwarding sub-layer is sending to the
forwarding sub-layer of the lower layer for
forwarding-to-forwarding aggregation at the ingress
node, relay node, or transit node.";
leaf aggregation-sub-layer {
type forwarding-sub-layer-ref;
description
"This is a reference to the forwarding sub-layer.";
}
container forwarding-label {
description
"This is the forwarding label for forwarding
sub-layer aggregation.";
uses rt-types:mpls-label-stack;
}
}
container service-sub-layer {
description
"This forwarding sub-layer is sending to the
service sub-layer of the upper layer. It then
decapsulates the F-Label for DetNet service or
service-to-forwarding disaggregation at the
relay node or egress node. This outgoing type
can only be chosen when the operation type is
'pop-and-lookup'.";
uses service-sub-layer-group;
reference
"RFC 8964: Deterministic Networking (DetNet)
Data Plane: MPLS, Section 4.2.3";
}
container forwarding-disaggregation {
description
"This forwarding sub-layer is sending to the
forwarding sub-layer of the upper layer. It
then decapsulates the F-Label for
forwarding-to-forwarding disaggregation at the
transit node, relay node, or egress node.
This outgoing type can only be chosen when the
operation type is 'pop-and-lookup'.";
uses forwarding-sub-layer-group;
}
}
}
}
}
}
}
<CODE ENDS>
9. IANA Considerations
IANA has registered the following URI in the "ns" subregistry within
the "IETF XML Registry" [RFC3688]:
URI: urn:ietf:params:xml:ns:yang:ietf-detnet
Registrant Contact: The IESG.
XML: N/A; the requested URI is an XML namespace.
IANA has registered the following YANG module in the "YANG Module
Names" subregistry [RFC6020] within the "YANG Parameters" registry:
Name: ietf-detnet
Maintained by IANA: N
Namespace: urn:ietf:params:xml:ns:yang:ietf-detnet
Prefix: dnet
Reference: RFC 9633
10. Security Considerations
Security considerations for DetNet are covered in "Deterministic
Networking Architecture" [RFC8655] and "Deterministic Networking
(DetNet) Security Considerations" [RFC9055].
The YANG module specified in this document defines a schema for data
that is designed to be accessed via network management protocols such
as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer
is the secure transport layer, and the mandatory-to-implement secure
transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer
is HTTPS, and the mandatory-to-implement secure transport is TLS
[RFC8446].
The Network Configuration Access Control Model (NACM) [RFC8341]
provides the means to restrict access for particular NETCONF or
RESTCONF users to a preconfigured subset of all available NETCONF or
RESTCONF protocol operations and content.
There are a number of data nodes defined in this YANG module that are
writable/creatable/deletable (i.e., config true, which is the
default). These data nodes may be considered sensitive or vulnerable
in some network environments. Write operations (e.g., edit-config)
to these data nodes without proper protection can have a negative
effect on network operations. Unauthorized write operations (e.g.,
edit-config) to any elements of this module can break or incorrectly
connect DetNet flows. Since DetNet is a configured data plane, any
changes that are not coordinated with all devices along the path will
result in a denial of service. In addition, arbitrary write
operations could enable an attacker to modify a network path to
enable select traffic to avoid inspection or treatment by security
controls or to route traffic in such a way that the traffic would be
subject to inspection/modification by an adversary node.
Some of the readable data nodes in this YANG module may be considered
sensitive or vulnerable in some network environments. It is thus
important to control read access (e.g., via get, get-config, or
notification) to these data nodes. These are the subtrees and data
nodes and their sensitivity/vulnerability:
/detnet/app-flows: This controls the application details, so it
could be considered sensitive.
/detnet/traffic-profile/member-app-flow: This links traffic profiles
to applications, service sub-layers, and/or forwarding sub-layers,
so this could also be considered more sensitive.
/detnet/service/sub-layer/incoming/app-flow: This links applications
to services.
/detnet/service/sub-layer/outgoing/app-flow: This links applications
to services.
The above nodes can reveal identifiable characteristics of the
application flows.
/detnet/service/sub-layer: This defines the service and forwarding
operations.
/detnet/forwarding/sub-layer: This defines the forwarding
operations.
The above nodes can reveal some aspects of the network topology in
the case of unauthorized access to this configuration.
11. References
11.1. Normative References
[RFC0791] Postel, J., "Internet Protocol", STD 5, RFC 791,
DOI 10.17487/RFC0791, September 1981,
<https://www.rfc-editor.org/info/rfc791>.
[RFC4303] Kent, S., "IP Encapsulating Security Payload (ESP)",
RFC 4303, DOI 10.17487/RFC4303, December 2005,
<https://www.rfc-editor.org/info/rfc4303>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure
Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011,
<https://www.rfc-editor.org/info/rfc6242>.
[RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types",
RFC 6991, DOI 10.17487/RFC6991, July 2013,
<https://www.rfc-editor.org/info/rfc6991>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016,
<https://www.rfc-editor.org/info/rfc7950>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/info/rfc8040>.
[RFC8200] Deering, S. and R. Hinden, "Internet Protocol, Version 6
(IPv6) Specification", STD 86, RFC 8200,
DOI 10.17487/RFC8200, July 2017,
<https://www.rfc-editor.org/info/rfc8200>.
[RFC8294] Liu, X., Qu, Y., Lindem, A., Hopps, C., and L. Berger,
"Common YANG Data Types for the Routing Area", RFC 8294,
DOI 10.17487/RFC8294, December 2017,
<https://www.rfc-editor.org/info/rfc8294>.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration
Access Control Model", STD 91, RFC 8341,
DOI 10.17487/RFC8341, March 2018,
<https://www.rfc-editor.org/info/rfc8341>.
[RFC8343] Bjorklund, M., "A YANG Data Model for Interface
Management", RFC 8343, DOI 10.17487/RFC8343, March 2018,
<https://www.rfc-editor.org/info/rfc8343>.
[RFC8349] Lhotka, L., Lindem, A., and Y. Qu, "A YANG Data Model for
Routing Management (NMDA Version)", RFC 8349,
DOI 10.17487/RFC8349, March 2018,
<https://www.rfc-editor.org/info/rfc8349>.
[RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol
Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018,
<https://www.rfc-editor.org/info/rfc8446>.
[RFC8519] Jethanandani, M., Agarwal, S., Huang, L., and D. Blair,
"YANG Data Model for Network Access Control Lists (ACLs)",
RFC 8519, DOI 10.17487/RFC8519, March 2019,
<https://www.rfc-editor.org/info/rfc8519>.
[RFC8655] Finn, N., Thubert, P., Varga, B., and J. Farkas,
"Deterministic Networking Architecture", RFC 8655,
DOI 10.17487/RFC8655, October 2019,
<https://www.rfc-editor.org/info/rfc8655>.
[RFC8938] Varga, B., Ed., Farkas, J., Berger, L., Malis, A., and S.
Bryant, "Deterministic Networking (DetNet) Data Plane
Framework", RFC 8938, DOI 10.17487/RFC8938, November 2020,
<https://www.rfc-editor.org/info/rfc8938>.
[RFC8960] Saad, T., Raza, K., Gandhi, R., Liu, X., and V. Beeram, "A
YANG Data Model for MPLS Base", RFC 8960,
DOI 10.17487/RFC8960, December 2020,
<https://www.rfc-editor.org/info/rfc8960>.
[RFC8964] Varga, B., Ed., Farkas, J., Berger, L., Malis, A., Bryant,
S., and J. Korhonen, "Deterministic Networking (DetNet)
Data Plane: MPLS", RFC 8964, DOI 10.17487/RFC8964, January
2021, <https://www.rfc-editor.org/info/rfc8964>.
[RFC9016] Varga, B., Farkas, J., Cummings, R., Jiang, Y., and D.
Fedyk, "Flow and Service Information Model for
Deterministic Networking (DetNet)", RFC 9016,
DOI 10.17487/RFC9016, March 2021,
<https://www.rfc-editor.org/info/rfc9016>.
11.2. Informative References
[IEEE8021Q-2022]
IEEE, "IEEE Standard for Local and Metropolitan Area
Networks--Bridges and Bridged Networks",
DOI 10.1109/IEEESTD.2022.10004498, IEEE Std 802.1Q-2022,
December 2022,
<https://ieeexplore.ieee.org/document/10004498>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC8259] Bray, T., Ed., "The JavaScript Object Notation (JSON) Data
Interchange Format", STD 90, RFC 8259,
DOI 10.17487/RFC8259, December 2017,
<https://www.rfc-editor.org/info/rfc8259>.
[RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams",
BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018,
<https://www.rfc-editor.org/info/rfc8340>.
[RFC9055] Grossman, E., Ed., Mizrahi, T., and A. Hacker,
"Deterministic Networking (DetNet) Security
Considerations", RFC 9055, DOI 10.17487/RFC9055, June
2021, <https://www.rfc-editor.org/info/rfc9055>.
Appendix A. DetNet Configuration YANG Tree
This is the full YANG tree per the guidelines provided in [RFC8340].
module: ietf-detnet
+--rw detnet
+--rw traffic-profile* [name]
| +--rw name string
| +--rw traffic-requirements
| | +--rw min-bandwidth? uint64
| | +--rw max-latency? uint32
| | +--rw max-latency-variation? uint32
| | +--rw max-loss? decimal64
| | +--rw max-consecutive-loss-tolerance? uint32
| | +--rw max-misordering? uint32
| +--rw traffic-spec
| | +--rw interval? uint32
| | +--rw max-pkts-per-interval? uint32
| | +--rw max-payload-size? uint32
| | +--rw min-payload-size? uint32
| | +--rw min-pkts-per-interval? uint32
| +--ro member-app-flow* app-flow-ref
| +--ro member-svc-sublayer* service-sub-layer-ref
| +--ro member-fwd-sublayer* forwarding-sub-layer-ref
+--rw app-flows
| +--rw app-flow* [name]
| +--rw name string
| +--rw bidir-congruent? boolean
| +--ro outgoing-service? service-sub-layer-ref
| +--ro incoming-service? service-sub-layer-ref
| +--rw traffic-profile? traffic-profile-ref
| +--rw ingress
| | +--ro app-flow-status? identityref
| | +--rw interface* if:interface-ref
| | +--rw (data-flow-type)?
| | +--:(tsn-app-flow)
| | | +--rw tsn-app-flow
| | | +--rw source-mac-address?
| | | | yang:mac-address
| | | +--rw destination-mac-address?
| | | | yang:mac-address
| | | +--rw ethertype?
| | | | ethertypes:ethertype
| | | +--rw vlan-id?
| | | | dot1q-types:vlanid
| | | +--rw pcp?
| | | dot1q-types:priority-type
| | +--:(ip-app-flow)
| | | +--rw ip-app-flow
| | | +--rw src-ip-prefix? inet:ip-prefix
| | | +--rw dest-ip-prefix? inet:ip-prefix
| | | +--rw protocol-next-header? uint8
| | | +--rw dscp? inet:dscp
| | | +--rw flow-label?
| | | | inet:ipv6-flow-label
| | | +--rw source-port
| | | | +--rw (port-range-or-operator)?
| | | | +--:(range)
| | | | | +--rw lower-port
| | | | | | inet:port-number
| | | | | +--rw upper-port
| | | | | inet:port-number
| | | | +--:(operator)
| | | | +--rw operator? operator
| | | | +--rw port inet:port-number
| | | +--rw destination-port
| | | | +--rw (port-range-or-operator)?
| | | | +--:(range)
| | | | | +--rw lower-port
| | | | | | inet:port-number
| | | | | +--rw upper-port
| | | | | inet:port-number
| | | | +--:(operator)
| | | | +--rw operator? operator
| | | | +--rw port inet:port-number
| | | +--rw ipsec-spi? ipsec-spi
| | +--:(mpls-app-flow)
| | +--rw mpls-app-flow
| | +--rw (label-space)?
| | +--:(context-label-space)
| | | +--rw mpls-label-stack
| | | +--rw entry* [id]
| | | +--rw id uint8
| | | +--rw label?
| | | | rt-types:mpls-label
| | | +--rw ttl? uint8
| | | +--rw traffic-class? uint8
| | +--:(platform-label-space)
| | +--rw label?
| | rt-types:mpls-label
| +--rw egress
| +--rw (data-flow-type)?
| | +--:(tsn-app-flow)
| | | +--rw tsn-app-flow
| | | +--rw source-mac-address? yang:mac-address
| | | +--rw destination-mac-address?
| | | | yang:mac-address
| | | +--rw ethertype? ethertypes:ethertype
| | | +--rw vlan-id? dot1q-types:vlanid
| | | +--rw pcp? dot1q-types:priority-type
| | +--:(ip-app-flow)
| | | +--rw ip-app-flow
| | | +--rw src-ip-prefix? inet:ip-prefix
| | | +--rw dest-ip-prefix? inet:ip-prefix
| | | +--rw protocol-next-header? uint8
| | | +--rw dscp? inet:dscp
| | | +--rw flow-label? inet:ipv6-flow-label
| | | +--rw source-port
| | | | +--rw (port-range-or-operator)?
| | | | +--:(range)
| | | | | +--rw lower-port
| | | | | inet:port-number
| | | | | +--rw upper-port
| | | | | inet:port-number
| | | | +--:(operator)
| | | | +--rw operator? operator
| | | | +--rw port inet:port-number
| | | +--rw destination-port
| | | | +--rw (port-range-or-operator)?
| | | | +--:(range)
| | | | | +--rw lower-port
| | | | | inet:port-number
| | | | | +--rw upper-port
| | | | | inet:port-number
| | | | +--:(operator)
| | | | +--rw operator? operator
| | | | +--rw port inet:port-number
| | | +--rw ipsec-spi? ipsec-spi
| | +--:(mpls-app-flow)
| | +--rw mpls-app-flow
| | +--rw (label-space)?
| | +--:(context-label-space)
| | | +--rw mpls-label-stack
| | | +--rw entry* [id]
| | | +--rw id uint8
| | | +--rw label? rt-types:mpls-label
| | | +--rw ttl? uint8
| | | +--rw traffic-class? uint8
| | +--:(platform-label-space)
| | +--rw label? rt-types:mpls-label
| +--rw (application-type)?
| +--:(ethernet)
| | +--rw ethernet
| | +--rw interface* if:interface-ref
| +--:(ip-mpls)
| +--rw ip-mpls
| +--rw (next-hop-options)?
| +--:(simple-next-hop)
| | +--rw outgoing-interface?
| | | if:interface-ref
| | +--rw (flow-type)?
| | +--:(ip)
| | | +--rw next-hop-address?
| | | inet:ip-address
| | +--:(mpls)
| | +--rw mpls-label-stack
| | +--rw entry* [id]
| | +--rw id uint8
| | +--rw label?
| | | rt-types:mpls-label
| | +--rw ttl? uint8
| | +--rw traffic-class? uint8
| +--:(next-hop-list)
| +--rw next-hop* [hop-index]
| +--rw hop-index uint8
| +--rw outgoing-interface?
| | if:interface-ref
| +--rw (flow-type)?
| +--:(ip)
| | +--rw next-hop-address?
| | inet:ip-address
| +--:(mpls)
| +--rw mpls-label-stack
| +--rw entry* [id]
| +--rw id
| | uint8
| +--rw label?
| | rt-types:mpls-
| | label
| +--rw ttl?
| | uint8
| +--rw traffic-class?
| uint8
+--rw service
| +--rw sub-layer* [name]
| +--rw name string
| +--rw service-rank? uint8
| +--rw traffic-profile? traffic-profile-ref
| +--rw service-protection
| | +--rw protection? service-protection
| | +--rw sequence-number-length? sequence-number-field
| +--rw operation? operation
| +--rw incoming
| | +--rw (incoming)?
| | +--:(app-flow)
| | | +--rw app-flow
| | | +--rw flow* app-flow-ref
| | +--:(service-aggregation)
| | | +--rw service-aggregation
| | | +--rw sub-layer* service-sub-layer-ref
| | +--:(forwarding-aggregation)
| | | +--rw forwarding-aggregation
| | | +--rw sub-layer* forwarding-sub-layer-ref
| | +--:(service-id)
| | | +--rw service-id
| | | +--rw (detnet-flow-type)?
| | | +--:(ip-detnet-flow)
| | | | +--rw src-ip-prefix?
| | | | | inet:ip-prefix
| | | | +--rw dest-ip-prefix?
| | | | | inet:ip-prefix
| | | | +--rw protocol-next-header? uint8
| | | | +--rw dscp? inet:dscp
| | | | +--rw flow-label?
| | | | | inet:ipv6-flow-label
| | | | +--rw source-port
| | | | | +--rw (port-range-or-operator)?
| | | | | +--:(range)
| | | | | | +--rw lower-port
| | | | | | | inet:port-number
| | | | | | +--rw upper-port
| | | | | | inet:port-number
| | | | | +--:(operator)
| | | | | +--rw operator? operator
| | | | | +--rw port
| | | | | inet:port-number
| | | | +--rw destination-port
| | | | | +--rw (port-range-or-operator)?
| | | | | +--:(range)
| | | | | | +--rw lower-port
| | | | | | | inet:port-number
| | | | | | +--rw upper-port
| | | | | | inet:port-number
| | | | | +--:(operator)
| | | | | +--rw operator? operator
| | | | | +--rw port
| | | | | inet:port-number
| | | | +--rw ipsec-spi? ipsec-spi
| | | +--:(mpls-detnet-flow)
| | | +--rw (label-space)?
| | | +--:(context-label-space)
| | | | +--rw mpls-label-stack
| | | | +--rw entry* [id]
| | | | +--rw id uint8
| | | | +--rw label?
| | | | | rt-types:mpls-label
| | | | +--rw ttl? uint8
| | | | +--rw traffic-class? uint8
| | | +--:(platform-label-space)
| | | +--rw label?
| | | rt-types:mpls-label
| | +--:(forwarding-sub-layer)
| | +--rw forwarding-sub-layer
| | +--ro sub-layer* forwarding-sub-layer-ref
| +--rw outgoing
| +--rw (outgoing)?
| +--:(forwarding-sub-layer)
| | +--rw forwarding-sub-layer
| | +--rw service-outgoing* [index]
| | +--rw index uint8
| | +--rw (header-type)?
| | | +--:(mpls)
| | | | +--rw mpls-label-stack
| | | | +--rw entry* [id]
| | | | +--rw id uint8
| | | | +--rw label?
| | | | | rt-types:mpls-label
| | | | +--rw ttl? uint8
| | | | +--rw traffic-class? uint8
| | | +--:(ip)
| | | +--rw src-ip-address?
| | | | inet:ip-address-no-zone
| | | +--rw dest-ip-address?
| | | | inet:ip-address-no-zone
| | | +--rw protocol-next-header? uint8
| | | +--rw dscp?
| | | | inet:dscp
| | | +--rw flow-label?
| | | | inet:ipv6-flow-label
| | | +--rw source-port?
| | | | inet:port-number
| | | +--rw destination-port?
| | | inet:port-number
| | +--rw sub-layer*
| | forwarding-sub-layer-ref
| +--:(service-sub-layer)
| | +--rw service-sub-layer
| | +--rw aggregation-sub-layer?
| | | service-sub-layer-ref
| | +--rw service-label
| | +--rw mpls-label-stack
| | +--rw entry* [id]
| | +--rw id uint8
| | +--rw label?
| | | rt-types:mpls-label
| | +--rw ttl? uint8
| | +--rw traffic-class? uint8
| +--:(app-flow)
| | +--rw app-flow
| | +--rw flow* app-flow-ref
| +--:(service-disaggregation)
| | +--rw service-disaggregation
| | +--rw sub-layer* service-sub-layer-ref
| +--:(forwarding-disaggregation)
| +--rw forwarding-disaggregation
| +--rw sub-layer* forwarding-sub-layer-ref
+--rw forwarding
+--rw sub-layer* [name]
+--rw name string
+--rw traffic-profile? traffic-profile-ref
+--rw operation? mpls-fwd-operation
+--rw incoming
| +--rw (incoming)?
| +--:(service-sub-layer)
| | +--rw service-sub-layer
| | +--rw sub-layer* service-sub-layer-ref
| +--:(forwarding-aggregation)
| | +--rw forwarding-aggregation
| | +--rw sub-layer* forwarding-sub-layer-ref
| +--:(forwarding-id)
| +--rw forwarding-id
| +--rw interface?
| | if:interface-ref
| +--rw (detnet-flow-type)?
| +--:(ip-detnet-flow)
| | +--rw src-ip-prefix?
| | | inet:ip-prefix
| | +--rw dest-ip-prefix?
| | | inet:ip-prefix
| | +--rw protocol-next-header? uint8
| | +--rw dscp? inet:dscp
| | +--rw flow-label?
| | | inet:ipv6-flow-label
| | +--rw source-port
| | | +--rw (port-range-or-operator)?
| | | +--:(range)
| | | | +--rw lower-port
| | | | | inet:port-number
| | | | +--rw upper-port
| | | | inet:port-number
| | | +--:(operator)
| | | +--rw operator? operator
| | | +--rw port
| | | inet:port-number
| | +--rw destination-port
| | | +--rw (port-range-or-operator)?
| | | +--:(range)
| | | | +--rw lower-port
| | | | | inet:port-number
| | | | +--rw upper-port
| | | | inet:port-number
| | | +--:(operator)
| | | +--rw operator? operator
| | | +--rw port
| | | inet:port-number
| | +--rw ipsec-spi? ipsec-spi
| +--:(mpls-detnet-flow)
| +--rw (label-space)?
| +--:(context-label-space)
| | +--rw mpls-label-stack
| | +--rw entry* [id]
| | +--rw id uint8
| | +--rw label?
| | | rt-types:mpls-label
| | +--rw ttl? uint8
| | +--rw traffic-class? uint8
| +--:(platform-label-space)
| +--rw label?
| rt-types:mpls-label
+--rw outgoing
+--rw (outgoing)?
+--:(interface)
| +--rw interface
| +--rw (next-hop-options)?
| +--:(simple-next-hop)
| | +--rw outgoing-interface?
| | | if:interface-ref
| | +--rw (flow-type)?
| | +--:(ip)
| | | +--rw next-hop-address?
| | | | inet:ip-address
| | | +--rw src-ip-address?
| | | | inet:ip-address-no-zone
| | | +--rw dest-ip-address?
| | | | inet:ip-address-no-zone
| | | +--rw protocol-next-header? uint8
| | | +--rw dscp? inet:dscp
| | | +--rw flow-label?
| | | | inet:ipv6-flow-label
| | | +--rw source-port?
| | | | inet:port-number
| | | +--rw destination-port?
| | | inet:port-number
| | +--:(mpls)
| | +--rw mpls-label-stack
| | +--rw entry* [id]
| | +--rw id uint8
| | +--rw label?
| | | rt-types:mpls-label
| | +--rw ttl? uint8
| | +--rw traffic-class? uint8
| +--:(next-hop-list)
| +--rw next-hop* [hop-index]
| +--rw hop-index
| | uint8
| +--rw outgoing-interface?
| | if:interface-ref
| +--rw (flow-type)?
| +--:(ip)
| | +--rw next-hop-address?
| | | inet:ip-address
| | +--rw src-ip-address?
| | | inet:ip-address-no-zone
| | +--rw dest-ip-address?
| | | inet:ip-address-no-zone
| | +--rw protocol-next-header?
| | | uint8
| | +--rw dscp? inet:dscp
| | +--rw flow-label?
| | | inet:ipv6-flow-label
| | +--rw source-port?
| | | inet:port-number
| | +--rw destination-port?
| | inet:port-number
| +--:(mpls)
| +--rw mpls-label-stack
| +--rw entry* [id]
| +--rw id
| | uint8
| +--rw label?
| | rt-types:mpls-
| | label
| +--rw ttl?
| | uint8
| +--rw traffic-class?
| uint8
+--:(service-aggregation)
| +--rw service-aggregation
| +--rw aggregation-sub-layer?
| | service-sub-layer-ref
| +--rw optional-forwarding-label
| +--rw mpls-label-stack
| +--rw entry* [id]
| +--rw id uint8
| +--rw label?
| | rt-types:mpls-label
| +--rw ttl? uint8
| +--rw traffic-class? uint8
+--:(forwarding-sub-layer)
| +--rw forwarding-sub-layer
| +--rw aggregation-sub-layer?
| | forwarding-sub-layer-ref
| +--rw forwarding-label
| +--rw mpls-label-stack
| +--rw entry* [id]
| +--rw id uint8
| +--rw label?
| | rt-types:mpls-label
| +--rw ttl? uint8
| +--rw traffic-class? uint8
+--:(service-sub-layer)
| +--rw service-sub-layer
| +--rw sub-layer* service-sub-layer-ref
+--:(forwarding-disaggregation)
+--rw forwarding-disaggregation
+--rw sub-layer* forwarding-sub-layer-ref
Appendix B. Examples
This section provides several examples. These examples were tested
with the "yanglint" program and use operational output to exercise
both "config true" and "config false" objects. Note that IPv4 and
IPv6 addresses are supported, but for clarity, IPv4 is used, with the
exception of Example A-1 (Appendix B.1). The IP types are imported
from [RFC6991]; these types support both IPv4 and IPv6.
The following conventions are used in the diagrams.
* In the diagrams found in the PDF and HTML copies of this document,
replication and elimination points are shown as "R" and "E" in
circles, respectively.
* Packet headers, including a DetNet aggregation label (A-Label),
service label (S-Label), and forwarding label (F-Label), are
illustrated at each hop as defined in [RFC8964].
* Aggregation/disaggregation nodes are indicated by dashed-line
boxes.
* Since the model augments IETF interfaces, minimal interface YANG
data is provided to validate the interface data as well. This
shows up as a named value, such as "eth0", that is referenced by
the configuration.
Below are examples of aggregation and disaggregation at various
points in DetNet. Where indicated, figures are provided in the PDF
and HTML copies of this document.
B.1. Example A-1: Application Flow Aggregation
This example illustrates multiple App-flows with the same source,
destination, and traffic specification aggregated into a single
DetNet flow service sub-layer. Ingress node 1 aggregates App-flows 0
and 1 into a service sub-layer of DetNet flow 1. Two ways to
illustrate this are provided in Figures 1 and 2; the JSON operational
data model [RFC8259] corresponding to the diagrams is then shown in
Figure 3. The address format used in this example is IPv6.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 1: Case A-1: Application Flow Aggregation
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 2: Case A-1: Stack Details for Application Flow Aggregation
Figure 3 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figures 1 and 2. "app-0" and "app-1"
are aggregated into service sub-layer ssl-1.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 20000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"traffic-spec": {
"interval": 5,
"max-pkts-per-interval": 10,
"max-payload-size": 1500,
"min-payload-size": 100,
"min-pkts-per-interval": 1
},
"member-app-flow": [
"app-0",
"app-1"
]
},
{
"name": "pf-2",
"traffic-requirements": {
"min-bandwidth": "200000000",
"max-latency": 100000000,
"max-latency-variation": 20000000,
"max-loss": "0.000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"traffic-spec": {
"interval": 5,
"max-pkts-per-interval": 20,
"max-payload-size": 1500,
"min-payload-size": 100,
"min-pkts-per-interval": 1
},
"member-svc-sublayer": [
"ssl-1"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 5,
"max-pkts-per-interval": 10,
"max-payload-size": 1500
},
"member-fwd-sublayers": [
"fsl-1"
]
}
],
"app-flows": {
"app-flow": [
{
"name": "app-0",
"bidir-congruent": false,
"outgoing-service": "ssl-1",
"traffic-profile": "pf-1",
"ingress": {
"app-flow-status": "ietf-detnet:ready",
"interface": [
"eth0"
],
"ip-app-flow": {
"src-ip-prefix": "2001:db8::1/128",
"dest-ip-prefix": "2001:db8::8/128",
"dscp": 6
}
}
},
{
"name": "app-1",
"bidir-congruent": false,
"outgoing-service": "ssl-1",
"traffic-profile": "pf-1",
"ingress": {
"app-flow-status": "ietf-detnet:ready",
"interface": [
"eth0"
],
"ip-app-flow": {
"src-ip-prefix": "2001:db8::1/128",
"dest-ip-prefix": "2001:db8::8/128",
"dscp": 7
}
}
}
]
},
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-2",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "initiation",
"incoming": {
"app-flow": {
"flow": [
"app-0",
"app-1"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 100
}
]
},
"sub-layer": [
"fsl-1"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10000
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 3: Example A-1: DetNet Configuration Application Flow
Aggregation
B.2. Example B-1: Aggregation Using a Forwarding Sub-layer
As illustrated in Figure 4, DetNet service sub-layer flows 1 and 2
are aggregated into a single forwarding sub-layer. For the same
destination, multiple DetNet flows use a single forwarding path, and
service protection is performed by the corresponding service sub-
layer of each flow. The corresponding XML operational data for node
"Ingress 1" follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 4: Case B-1: Aggregation Using a Forwarding Sub-layer
Figure 5 contains the operational XML configuration for the ingress
aggregation node illustrated in Figure 4. In this example, "app-0"
and "app-1" are in separate service sub-layers with MPLS labels, and
the aggregation happens at forwarding sub-layer afl-1, using MPLS
labels.
<interfaces
xmlns="urn:ietf:params:xml:ns:yang:ietf-interfaces"
xmlns:ia="urn:ietf:params:xml:ns:yang:iana-if-type">
<interface>
<name>eth0</name>
<type>ia:ethernetCsmacd</type>
<oper-status>up</oper-status>
<statistics>
<discontinuity-time>2024-02-21T23:59:00Z</discontinuity-time>
</statistics>
</interface>
<interface>
<name>eth1</name>
<type>ia:ethernetCsmacd</type>
<oper-status>up</oper-status>
<statistics>
<discontinuity-time>2024-02-21T23:59:00Z</discontinuity-time>
</statistics>
</interface>
<interface>
<name>eth2</name>
<type>ia:ethernetCsmacd</type>
<oper-status>up</oper-status>
<statistics>
<discontinuity-time>2024-02-21T23:59:00Z</discontinuity-time>
</statistics>
</interface>
</interfaces>
<detnet
xmlns="urn:ietf:params:xml:ns:yang:ietf-detnet">
<app-flows>
<app-flow>
<name>app-1</name>
<bidir-congruent>false</bidir-congruent>
<outgoing-service>ssl-1</outgoing-service>
<traffic-profile>1</traffic-profile>
<ingress>
<app-flow-status>ready</app-flow-status>
<interface>eth0</interface>
<ip-app-flow>
<src-ip-prefix>192.0.2.1/32</src-ip-prefix>
<dest-ip-prefix>192.0.2.8/32</dest-ip-prefix>
<dscp>6</dscp>
</ip-app-flow>
</ingress>
</app-flow>
<app-flow>
<name>app-2</name>
<bidir-congruent>false</bidir-congruent>
<outgoing-service>ssl-2</outgoing-service>
<traffic-profile>1</traffic-profile>
<ingress>
<app-flow-status>ready</app-flow-status>
<interface>eth1</interface>
<ip-app-flow>
<src-ip-prefix>192.0.2.2/32</src-ip-prefix>
<dest-ip-prefix>192.0.2.9/32</dest-ip-prefix>
<dscp>7</dscp>
</ip-app-flow>
</ingress>
</app-flow>
</app-flows>
<traffic-profile>
<name>1</name>
<traffic-requirements>
<min-bandwidth>100000000</min-bandwidth>
<max-latency>100000000</max-latency>
<max-latency-variation>20000000</max-latency-variation>
<max-loss>0.0000001</max-loss>
<max-consecutive-loss-tolerance>5
</max-consecutive-loss-tolerance>
<max-misordering>0</max-misordering>
</traffic-requirements>
<traffic-spec>
<interval>5</interval>
<max-pkts-per-interval>10</max-pkts-per-interval>
<max-payload-size>1500</max-payload-size>
</traffic-spec>
<member-app-flow>app-1</member-app-flow>
<member-app-flow>app-2</member-app-flow>
</traffic-profile>
<traffic-profile>
<name>2</name>
<traffic-requirements>
<min-bandwidth>100000000</min-bandwidth>
<max-latency>100000000</max-latency>
<max-latency-variation>20000000</max-latency-variation>
<max-loss>0.000001</max-loss>
<max-consecutive-loss-tolerance>5
</max-consecutive-loss-tolerance>
<max-misordering>0</max-misordering>
</traffic-requirements>
<member-svc-sublayer>ssl-1</member-svc-sublayer>
<member-svc-sublayer>ssl-2</member-svc-sublayer>
</traffic-profile>
<traffic-profile>
<name>3</name>
<traffic-spec>
<interval>5</interval>
<max-pkts-per-interval>20</max-pkts-per-interval>
<max-payload-size>1500</max-payload-size>
</traffic-spec>
<member-fwd-sublayer>afl-1</member-fwd-sublayer>
</traffic-profile>
<service>
<sub-layer>
<name>ssl-1</name>
<service-rank>10</service-rank>
<traffic-profile>2</traffic-profile>
<operation>initiation</operation>
<service-protection>
<protection>none</protection>
<sequence-number-length>long-sn</sequence-number-length>
</service-protection>
<incoming>
<app-flow>
<flow>app-1</flow>
</app-flow>
</incoming>
<outgoing>
<forwarding-sub-layer>
<service-outgoing>
<index>0</index>
<mpls-label-stack>
<entry>
<id>0</id>
<label>100</label>
</entry>
</mpls-label-stack>
<sub-layer>afl-1</sub-layer>
</service-outgoing>
</forwarding-sub-layer>
</outgoing>
</sub-layer>
<sub-layer>
<name>ssl-2</name>
<service-rank>10</service-rank>
<traffic-profile>2</traffic-profile>
<operation>initiation</operation>
<service-protection>
<protection>none</protection>
<sequence-number-length>long-sn</sequence-number-length>
</service-protection>
<incoming>
<app-flow>
<flow>app-2</flow>
</app-flow>
</incoming>
<outgoing>
<forwarding-sub-layer>
<service-outgoing>
<index>0</index>
<mpls-label-stack>
<entry>
<id>0</id>
<label>103</label>
</entry>
</mpls-label-stack>
<sub-layer>afl-1</sub-layer>
</service-outgoing>
</forwarding-sub-layer>
</outgoing>
</sub-layer>
</service>
<forwarding>
<sub-layer>
<name>afl-1</name>
<traffic-profile>3</traffic-profile>
<operation>impose-and-forward</operation>
<incoming>
<service-sub-layer>
<sub-layer>ssl-1</sub-layer>
<sub-layer>ssl-2</sub-layer>
</service-sub-layer>
</incoming>
<outgoing>
<interface>
<outgoing-interface>eth2</outgoing-interface>
<mpls-label-stack>
<entry>
<id>0</id>
<label>10000</label>
</entry>
</mpls-label-stack>
</interface>
</outgoing>
</sub-layer>
</forwarding>
</detnet>
Figure 5: Example B-1: DetNet Configuration Forwarding Sub-layer
Aggregation
B.3. Example B-2: Service Aggregation
As illustrated in Figure 6, DetNet service sub-layer flows 1 and 2
are aggregated into a service sub-layer of an aggregated flow.
Multiple DetNet flows with the same requirements for the same
destination are aggregated into a single aggregated DetNet flow, and
service protection and resource allocation are performed by an
aggregated DetNet flow service sub-layer and forwarding sub-layer.
The corresponding JSON operational data for node "Ingress 1" follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 6: Case B-2: Example Service Aggregation
Figure 7 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figure 6. In this example, service
sub-layer ssl-1 for DetNet flow DN-1 and ssl-2 for DetNet flow DN-2
aggregate at service sub-layer DetNet flow asl-1. In this example,
an aggregation service sub-layer, asl-1, is created to aggregate
ssl-1 and ssl2, and that label is encapsulated in a separate
forwarding sub-layer, afl-1, with MPLS labels.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 20000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 10,
"max-payload-size": 1500
},
"member-app-flow": [
"app-1",
"app-2"
]
},
{
"name": "2",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 20000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "3",
"traffic-requirements": {
"min-bandwidth": "200000000",
"max-latency": 100000000,
"max-latency-variation": 20000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"asl-1"
]
},
{
"name": "4",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 20,
"max-payload-size": 1500
},
"member-fwd-sublayer": [
"afl-1"
]
}
],
"app-flows": {
"app-flow": [
{
"name": "app-1",
"bidir-congruent": false,
"outgoing-service": "ssl-1",
"traffic-profile": "1",
"ingress": {
"app-flow-status": "ietf-detnet:ready",
"interface": [
"eth0"
],
"ip-app-flow": {
"src-ip-prefix": "192.0.2.1/32",
"dest-ip-prefix": "192.0.2.8/32",
"dscp": 6
}
}
},
{
"name": "app-2",
"bidir-congruent": false,
"outgoing-service": "ssl-2",
"traffic-profile": "1",
"ingress": {
"app-flow-status": "ietf-detnet:ready",
"interface": [
"eth0"
],
"ip-app-flow": {
"src-ip-prefix": "192.0.2.2/32",
"dest-ip-prefix": "192.0.2.9/32",
"dscp": 7
}
}
}
]
},
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "2",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "initiation",
"incoming": {
"app-flow": {
"flow": [
"app-1"
]
}
},
"outgoing": {
"service-sub-layer": {
"aggregation-sub-layer": "asl-1",
"service-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 102
}
]
}
}
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "2",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "initiation",
"incoming": {
"app-flow": {
"flow": [
"app-2"
]
}
},
"outgoing": {
"service-sub-layer": {
"aggregation-sub-layer": "asl-1",
"service-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 105
}
]
}
}
}
}
},
{
"name": "asl-1",
"service-rank": 10,
"traffic-profile": "3",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "initiation",
"incoming": {
"service-aggregation": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 1000
}
]
},
"sub-layer": [
"afl-1"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "afl-1",
"traffic-profile": "4",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20000
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 7: Example B-2: DetNet Service Aggregation
B.4. Example C-1: DetNet Relay Service Sub-layer
Figure 8 illustrates the DetNet relay node's forwarding sub-layer
flows 1 and 2 aggregated into a single forwarding sub-layer. Service
protection and resource allocation are performed by the corresponding
service sub-layer and forwarding sub-layer of each flow. Figure 8
illustrates both aggregation and disaggregation, and the
corresponding JSON operational data follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 8: Case C-1: Example Service Aggregation/Disaggregation
Figure 9 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figure 8. In this example, a relay
performing aggregation at the forwarding sub-layer is illustrated.
Two DetNet flows -- DN-1 and DN-2 -- are replicated at each service
sub-layer. The two forwarding sub-layers for the upper path are
aggregated at the forwarding sub-layer with label 20000, and the two
forwarding sub-layers for the lower path are aggregated at the
forwarding sub-layer with label 20001. Figure 10 contains the
operational JSON configuration for the egress disaggregation node
illustrated in Figure 8.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"afl-1",
"afl-2"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2",
"fsl-3",
"fsl-4",
"fsl-5",
"fsl-6"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "replication",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 100
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
},
"sub-layer": [
"fsl-2",
"fsl-3"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "replication",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 103
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
},
"sub-layer": [
"fsl-5",
"fsl-6"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10000
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"aggregation-sub-layer": "afl-1",
"forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10003
}
]
}
}
}
}
},
{
"name": "fsl-3",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"aggregation-sub-layer": "afl-2",
"forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10004
}
]
}
}
}
}
},
{
"name": "fsl-4",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10006
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "fsl-5",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"aggregation-sub-layer": "afl-1",
"forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10009
}
]
}
}
}
}
},
{
"name": "fsl-6",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"aggregation-sub-layer": "afl-2",
"forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10010
}
]
}
}
}
}
},
{
"name": "afl-1",
"traffic-profile": "pf-2",
"operation": "impose-and-forward",
"incoming": {
"forwarding-aggregation": {
"sub-layer": [
"fsl-2",
"fsl-5"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20000
}
]
}
}
}
},
{
"name": "afl-2",
"traffic-profile": "pf-2",
"operation": "impose-and-forward",
"incoming": {
"forwarding-aggregation": {
"sub-layer": [
"fsl-3",
"fsl-6"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20001
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 9: Example C-1: DetNet Relay Service Aggregation
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"afl-1",
"afl-2"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2",
"fsl-3",
"fsl-4",
"fsl-5",
"fsl-6"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "elimination",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 102
}
]
},
"sub-layer": [
"fsl-3"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "elimination",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 105
}
]
},
"sub-layer": [
"fsl-6"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "afl-1",
"traffic-profile": "pf-2",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20002
}
]
}
}
},
"outgoing": {
"forwarding-disaggregation": {
"sub-layer": [
"fsl-1",
"fsl-4"
]
}
}
},
{
"name": "afl-2",
"traffic-profile": "pf-2",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20003
}
]
}
}
},
"outgoing": {
"forwarding-disaggregation": {
"sub-layer": [
"fsl-2",
"fsl-5"
]
}
}
},
{
"name": "fsl-1",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10003
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10004
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-3",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10005
}
]
}
}
}
},
{
"name": "fsl-4",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10009
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "fsl-5",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10010
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "fsl-6",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10011
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 10: Example C-1: DetNet Relay Service Disaggregation
B.5. Example C-2: DetNet Relay Service Sub-layer Aggregation/
Disaggregation
Figure 11 illustrates the DetNet relay node's service sub-layer flows
1 and 2 aggregated into a single forwarding sub-layer. Service
protection is performed by the corresponding service sub-layer of
each flow, and resource allocation is performed by an aggregated
forwarding sub-layer for all aggregated flows. Figure 11 illustrates
both aggregation and disaggregation, and the corresponding JSON
operational data follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 11: Case C-2: Example Service Aggregation/Disaggregation
Figure 12 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figure 11. In this example, a relay
performing aggregation at the forwarding sub-layer is illustrated.
Two DetNet flows -- DN-1 and DN-2 -- are replicated at each service
sub-layer. Each replicated flow for the service sub-layer for the
upper path is aggregated at the single forwarding sub-layer with MPLS
label 20000, and each replicated flow for the service sub-layer for
the lower path is aggregated at the forwarding sub-layer with MPLS
label 20001. Figure 13 contains the operational JSON configuration
for the egress disaggregation node illustrated in Figure 11.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"afl-1",
"afl-2"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "replication",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 100
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
},
"sub-layer": [
"afl-1",
"afl-2"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "replication",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 103
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
},
"sub-layer": [
"afl-1",
"afl-2"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-2",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10000
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-2",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10006
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "afl-1",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20000
}
]
}
}
}
},
{
"name": "afl-2",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20001
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 12: Example C-2: DetNet Relay Aggregation Service Sub-layer
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"afl-1",
"afl-2"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "elimination",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 102
}
]
},
"sub-layer": [
"fsl-1"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "elimination",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 105
}
]
},
"sub-layer": [
"fsl-2"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "afl-1",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20002
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
}
},
{
"name": "afl-2",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20003
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
}
},
{
"name": "fsl-1",
"traffic-profile": "pf-2",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10005
}
]
}
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-2",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10011
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 13: Example C-2: DetNet Relay Disaggregation Service Sub-layer
B.6. Example C-3: DetNet Relay Service Sub-layer Aggregation/
Disaggregation
Figure 14 illustrates the DetNet relay node's service sub-layer flows
1 and 2 aggregated into a service sub-layer flow. Multiple DetNet
flows with the same requirements that can use the same path are
aggregated into a single aggregated DetNet flow, and service
protection and resource allocation are performed by the service sub-
layer and forwarding sub-layer of the aggregated DetNet flow.
Figure 14 illustrates both aggregation and disaggregation, and the
corresponding JSON operational data follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 14: Case C-3: Example Service Aggregation/Disaggregation
Figure 15 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figure 14. In this example, a relay
performing aggregation at the service sub-layer is illustrated. Two
DetNet flows -- DN-1 and DN-2 -- are relayed at each service sub-
layer with MPLS labels 101 and 104, respectively, and each service
sub-layer is aggregated at a single service sub-layer flow and
replicated. Figure 16 contains the operational JSON configuration
for the egress disaggregation node illustrated in Figure 14.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-requirements": {
"min-bandwidth": "200000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"asl-1"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
},
{
"name": "pf-4",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-3",
"fsl-4"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 100
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"aggregation-sub-layer": "asl-1",
"service-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
}
}
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 103
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"aggregation-sub-layer": "asl-1",
"service-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
}
}
}
}
},
{
"name": "asl-1",
"service-rank": 10,
"traffic-profile": "pf-2",
"service-protection": {
"protection": "replication",
"sequence-number-length": "long-sn"
},
"operation": "initiation",
"incoming": {
"service-aggregation": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 1000
}
]
},
"sub-layer": [
"fsl-3",
"fsl-4"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10000
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10006
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "fsl-3",
"traffic-profile": "pf-4",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20000
}
]
}
}
}
},
{
"name": "fsl-4",
"traffic-profile": "pf-4",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20001
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 15: Example C-3: DetNet Relay Service Sub-layer Aggregation
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-requirements": {
"min-bandwidth": "200000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"asl-1"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-3",
"fsl-4"
]
},
{
"name": "pf-4",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 102
}
]
},
"sub-layer": [
"fsl-3"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 105
}
]
},
"sub-layer": [
"fsl-4"
]
}
]
}
}
},
{
"name": "asl-1",
"service-rank": 10,
"traffic-profile": "pf-2",
"service-protection": {
"protection": "elimination",
"sequence-number-length": "long-sn"
},
"operation": "termination",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 1000
}
]
}
}
},
"outgoing": {
"service-disaggregation": {
"sub-layer": [
"ssl-1",
"ssl-2"
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-4",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20002
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-4",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20003
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
}
},
{
"name": "fsl-3",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10005
}
]
}
}
}
},
{
"name": "fsl-4",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10011
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 16: Example C-3: DetNet Relay Service Sub-layer Disaggregation
B.7. Example C-4: DetNet Relay Service Sub-layer Aggregation/
Disaggregation
Figure 17 illustrates the DetNet relay node's forwarding sub-layer
flows 1 and 2 aggregated into a service sub-layer DetNet flow.
Multiple DetNet flows with the same requirements that can use the
same path are aggregated into a single aggregated DetNet flow.
Service protection is performed by the service sub-layer of the
aggregated DetNet flow, and resource allocation is performed by the
forwarding sub-layer of each aggregated DetNet flow. Figure 17
illustrates both aggregation and disaggregation, and the
corresponding JSON operational data follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 17: Case C-4: Example Service Aggregation/Disaggregation
Figure 18 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figure 17. In this example, a relay
performing aggregation at the service sub-layer is illustrated. Two
DetNet flows -- DN-1 and DN-2 -- are relayed at each service sub-
layer. The two DetNet forwarding sub-layer flows with MPLS labels
20004 and 20005 are aggregated at the single service sub-layer DetNet
flow and then replicated. Figure 19 contains the operational JSON
configuration for the egress disaggregation node illustrated in
Figure 17.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-requirements": {
"min-bandwidth": "200000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"asl-1"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2",
"fsl-3",
"fsl-4"
]
},
{
"name": "pf-4",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-5",
"fsl-6"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 100
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
},
"sub-layer": [
"fsl-3"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 103
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
},
"sub-layer": [
"fsl-4"
]
}
]
}
}
},
{
"name": "asl-1",
"service-rank": 10,
"traffic-profile": "pf-2",
"service-protection": {
"protection": "replication",
"sequence-number-length": "long-sn"
},
"operation": "initiation",
"incoming": {
"forwarding-aggregation": {
"sub-layer": [
"fsl-3",
"fsl-4"
]
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 1000
}
]
},
"sub-layer": [
"fsl-5",
"fsl-6"
]
}
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10000
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10006
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "fsl-3",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"service-aggregation": {
"aggregation-sub-layer": "asl-1",
"optional-forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20004
}
]
}
}
}
}
},
{
"name": "fsl-4",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"service-aggregation": {
"aggregation-sub-layer": "asl-1",
"optional-forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20005
}
]
}
}
}
}
},
{
"name": "fsl-5",
"traffic-profile": "pf-4",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20000
}
]
}
}
}
},
{
"name": "fsl-6",
"traffic-profile": "pf-4",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20001
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 18: Example C-4: DetNet Relay Service Sub-layer Aggregation
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-requirements": {
"min-bandwidth": "100000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"ssl-1",
"ssl-2"
]
},
{
"name": "pf-2",
"traffic-requirements": {
"min-bandwidth": "200000000",
"max-latency": 100000000,
"max-latency-variation": 10000000,
"max-loss": "0.0000001",
"max-consecutive-loss-tolerance": 5,
"max-misordering": 0
},
"member-svc-sublayer": [
"asl-1"
]
},
{
"name": "pf-3",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-3",
"fsl-4",
"fsl-5",
"fsl-6"
]
},
{
"name": "pf-4",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
}
],
"service": {
"sub-layer": [
{
"name": "ssl-1",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 101
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 102
}
]
},
"sub-layer": [
"fsl-5"
]
}
]
}
}
},
{
"name": "ssl-2",
"service-rank": 10,
"traffic-profile": "pf-1",
"service-protection": {
"protection": "none",
"sequence-number-length": "long-sn"
},
"operation": "relay",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 104
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"service-outgoing": [
{
"index": 0,
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 105
}
]
},
"sub-layer": [
"fsl-6"
]
}
]
}
}
},
{
"name": "asl-1",
"service-rank": 10,
"traffic-profile": "pf-2",
"service-protection": {
"protection": "elimination",
"sequence-number-length": "long-sn"
},
"operation": "termination",
"incoming": {
"service-id": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 1000
}
]
}
}
},
"outgoing": {
"forwarding-disaggregation": {
"sub-layer": [
"fsl-3",
"fsl-4"
]
}
}
}
]
},
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-4",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20002
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-4",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20003
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"asl-1"
]
}
}
},
{
"name": "fsl-3",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20004
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
}
},
{
"name": "fsl-4",
"traffic-profile": "pf-3",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20005
}
]
}
}
},
"outgoing": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
}
},
{
"name": "fsl-5",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-1"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10005
}
]
}
}
}
},
{
"name": "fsl-6",
"traffic-profile": "pf-3",
"operation": "impose-and-forward",
"incoming": {
"service-sub-layer": {
"sub-layer": [
"ssl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10011
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 19: Example C-4: DetNet Relay Service Sub-layer Disaggregation
B.8. Example D-1: Transit Node Forwarding Sub-layer Aggregation/
Disaggregation
As illustrated in Figure 20, at the transit node, forwarding sub-
layer flows 1 and 2 are aggregated into a single forwarding sub-
layer. Resource allocation is performed by the corresponding
forwarding sub-layer for all aggregated flows. Figure 20 illustrates
both aggregation and disaggregation, and the corresponding JSON
operational data follows.
(Artwork only available as SVG: see
https://www.rfc-editor.org/rfc/rfc9633.html)
Figure 20: Case D-1: Example Transit Node Forwarding Aggregation/
Disaggregation
Figure 21 contains the operational JSON configuration for the ingress
aggregation node illustrated in Figure 20. In this example, a
transit node performing aggregation at the forwarding sub-layer is
illustrated. Two DetNet flows -- DN-1 and DN-2 -- are transmitted at
each forwarding sub-layer. The DetNet forwarding sub-layer flows
with MPLS labels 10002 and 10006 are aggregated at the single
forwarding sub-layer. The resulting aggregated DetNet flow has MPLS
label 20000. Figure 22 contains the operational JSON configuration
for the egress disaggregation transit node illustrated in Figure 20.
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
},
{
"name": "pf-2",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"afl-1"
]
}
],
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-1",
"operation": "pop-impose-and-forward",
"incoming": {
"forwarding-id": {
"interface": "eth0",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10000
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"aggregation-sub-layer": "afl-1",
"forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10002
}
]
}
}
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-1",
"operation": "pop-impose-and-forward",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10004
}
]
}
}
},
"outgoing": {
"forwarding-sub-layer": {
"aggregation-sub-layer": "afl-1",
"forwarding-label": {
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10006
}
]
}
}
}
}
},
{
"name": "afl-1",
"traffic-profile": "pf-2",
"operation": "impose-and-forward",
"incoming": {
"forwarding-aggregation": {
"sub-layer": [
"fsl-1",
"fsl-2"
]
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20000
}
]
}
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth0",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 21: Example D-1: Transit Node Forwarding Aggregation
{
"ietf-detnet:detnet": {
"traffic-profile": [
{
"name": "pf-1",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 1,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"fsl-1",
"fsl-2"
]
},
{
"name": "pf-2",
"traffic-spec": {
"interval": 125,
"max-pkts-per-interval": 2,
"max-payload-size": 1518
},
"member-fwd-sublayer": [
"afl-1"
]
}
],
"forwarding": {
"sub-layer": [
{
"name": "fsl-1",
"traffic-profile": "pf-1",
"operation": "swap-and-forward",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10002
}
]
}
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth3",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10003
}
]
}
}
}
},
{
"name": "fsl-2",
"traffic-profile": "pf-1",
"operation": "swap-and-forward",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10006
}
]
}
}
},
"outgoing": {
"interface": {
"outgoing-interface": "eth2",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 10007
}
]
}
}
}
},
{
"name": "afl-1",
"traffic-profile": "pf-2",
"operation": "pop-and-lookup",
"incoming": {
"forwarding-id": {
"interface": "eth1",
"mpls-label-stack": {
"entry": [
{
"id": 0,
"label": 20001
}
]
}
}
},
"outgoing": {
"forwarding-disaggregation": {
"sub-layer": [
"fsl-1",
"fsl-2"
]
}
}
}
]
}
},
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "eth1",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth2",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
},
{
"name": "eth3",
"type": "iana-if-type:ethernetCsmacd",
"oper-status": "up",
"statistics": {
"discontinuity-time": "2024-02-21T18:59:00-05:00"
}
}
]
}
}
Figure 22: Example D-1: Transit Node Forwarding Disaggregation
Acknowledgments
The authors of this document would like to thank Lou Berger, Tom
Petch, Xufeng Liu, Julien Meuric, John Scudder, and Florian Kauer for
their detailed comments.
Contributors
The authors of this document wish to thank and acknowledge the
following individual, who contributed substantially to the content of
this document and should be considered a coauthor:
Mach(Guoyi) Chen
Huawei Technologies
Email: mach.chen@huawei.com
Authors' Addresses
Xuesong Geng
Huawei Technologies
Email: gengxuesong@huawei.com
Yeoncheol Ryoo
ETRI
Email: dbduscjf@etri.re.kr
Don Fedyk
LabN Consulting, L.L.C.
Email: dfedyk@labn.net
Reshad Rahman
Equinix
Email: reshad@yahoo.com
Zhenqiang Li
China Mobile
Email: lizhenqiang@chinamobile.com