Link State Routing
Internet Engineering Task Force (IETF) M. Fox
Internet-Draft
Request for Comments: 9454 IBM
Updates: 2328 5340 4222 4811 5243 5340 5614 5838 (if A. Lindem
approved) LabN Consulting LLC
Intended status:
Category: Standards Track LabN Consulting, L.L.C.
ISSN: 2070-1721 A. Retana
Expires: 26 November 2023
Futurewei Technologies, Inc.
25 May
August 2023
Update to OSPF Terminology
draft-ietf-lsr-ospf-terminology-09
Abstract
This document updates some OSPF terminology to be in line with
inclusive language used in the industry. The IETF has designated US
National Institute of Standards and Technology (NIST)
"Guidance for NIST Staff on Using Inclusive Language in Documentary
Standards" by the US National Institute of Standards and Technology
(NIST) for its inclusive language guidelines. It is intended that
all future OSPF documents use this revised terminology even when they
reference the RFCs updated by this document.
This document updates RFC2328, RFC5340, RFC4222, RFC4811, RFC5243,
RFC5614, RFCs 2328, 4222, 4811, 5243, 5340, 5614, and RFC5838.
5838.
Status of This Memo
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This Internet-Draft will expire on 26 November 2023.
https://www.rfc-editor.org/info/rfc9454.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Update to RFC2328 . . . . . . . . . . . . . . . . . . . . . . 2 RFC 2328
3. Update to RFC5340 . . . . . . . . . . . . . . . . . . . . . . 3 RFC 4222
4. Update to RFC4222 . . . . . . . . . . . . . . . . . . . . . . 3 RFC 4811
5. Update to RFC4811 . . . . . . . . . . . . . . . . . . . . . . 3 RFC 5243
6. Update to RFC5243 . . . . . . . . . . . . . . . . . . . . . . 4 RFC 5340
7. Update to RFC5614 . . . . . . . . . . . . . . . . . . . . . . 4 RFC 5614
8. Update to RFC5838 . . . . . . . . . . . . . . . . . . . . . . 4 RFC 5838
9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 5
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
11.
10. Security Considerations . . . . . . . . . . . . . . . . . . . 5
12.
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 5
12.1.
11.1. Normative References . . . . . . . . . . . . . . . . . . 5
12.2.
11.2. Informative References . . . . . . . . . . . . . . . . . 6
Acknowledgements
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction
This document updates some OSPF terminology to be in line with
inclusive language used in the industry. The IETF has designated US
National Institute of Standards and Technology (NIST)
"Guidance for NIST Staff on Using Inclusive Language in Documentary
Standards" by the US National Institute of Standards and Technology
(NIST) [NISTIR8366] for its inclusive language guidelines. It is
intended that all future OSPF documents use this revised terminology
even when they reference the RFCs updated by this document.
This document updates [RFC2328], [RFC5340], [RFC4222], [RFC4811], [RFC5243],
[RFC5340], [RFC5614], and [RFC5838].
2. Update to RFC2328 RFC 2328
The base OSPFv2 specification "OSPF Version 2" [RFC2328] defines the
synchronization of databases as two routers forming a "master/slave relationship". "master/slave"
relationship. All instances of these terms are replaced by Leader/Follower, "Leader/
Follower", respectively.
The Master (MS) bit in
In the database description packet Database Description packet, the "master (MS) bit" is renamed
the
Leader "Leader (L) bit. bit".
The operation of OSPFv2 is not modified. The Leader/Follower
terminology and Leader (L) Bit bit definition changes impact the
following sections: 7.2 "The Synchronization of Databases", 10 Databases" (Section 7.2),
"The Neighbor Data Structures", 10.1 Structure" (Section 10), "Neighbor states", 10.2 states"
(Section 10.1), "Events causing neighbor state changes", 10.3 changes"
(Section 10.2), "The Neighbor state machine",
10.6 machine" (Section 10.3),
"Receiving Database Description Packets", 10.8 Packets" (Section 10.6), "Sending
Database Description Packets", 10.10 Packets" (Section 10.8), "An Example", Example"
(Section 10.10), and A.3.3 "The Database Description packet".
4. packet"
(Appendix A.3.3).
3. Update to RFC4222
This Best Current Practice (BCP) document describes RFC 4222
"Prioritized Treatment of Specific OSPF Version 2 Packets and
Congestion Avoidance" [RFC4222]. There [RFC4222] is a Best Current Practice (BCP)
document. In Appendix C, Item (2), there is an example OSFPv2 packet
sequence in
Appendix C, (2), that refers to the "slave" in a database exchange.
This exchange; this
reference will be is renamed to "Follower".
5.
4. Update to RFC4811
This Experimental document specifies RFC 4811
"OSPF Out-of-Band Link State Database (LSDB) Resynchronization" [RFC4811].
[RFC4811] is an Informational document. Section 2.4 includes a
Database Description packet (Figure 2) and a description of the
attendant encoding changes for Out-of-Band Resynchronization. In the
figure and the description, all instances of MS when "MS" (when referring to
the Database Description packet bit bit) are renamed to "L". There is
also a reference to "Master" in this section that is renamed to
"Leader".
6.
5. Update to RFC5243
This Informational document describes an RFC 5243
"OSPF Database Exchange Summary List Optimization" [RFC5243]. [RFC5243] is an
Informational document. The Introduction, Section 1, Introduction (Section 1) references
"Master or Slave". This will be Slave"; this is replaced by "Leader or Follower".
Section 3.0 3 includes an example of the optimized database exchange. In
this example, all instances of "Master" will be renamed
to "Leader" and all instances of "Slave" will be are renamed to
"Follower".
3.
"Leader" and "Follower", respectively.
6. Update to RFC5340 RFC 5340
The base OSPFv3 specification "OSPF for IPv6" [RFC5340] defines the database
description
Database Description process between two routers as one being
"designated to be the master and the other is the slave". All
instances of these terms are replaced by Leader/Follower, "Leader/Follower",
respectively.
The Master/Slave (MS) bit in
In the database description packet Database Description packet, the "Master/Slave (MS) bit" is
renamed the Leader "Leader (L) bit. bit".
The operation of OSPFv3 is not modified. The Leader/Follower
terminology and Leader (L) Bit bit definition changes impact section
A.3.3 "The
Database Description packet". Packet" (Appendix A.3.3).
7. Update to RFC5614
This Experimental document specifies the RFC 5614
"Mobile Ad Hoc Network (MANET) Extension of OSPF Using Connected
Dominating Set (CDS) Flooding" [RFC5614]. [RFC5614] is an Experimental document.
"Changes to the Neighbor State Machine",
Section 7.2 Machine" (Section 7.1) contains
modifications to the neighbor state machine that were updated from
[RFC2328]. In this transition to "2-way" state, the neighbor state machine modifications, all
instances of "Master" are renamed to "Leader" and all instances of "Slave" are renamed to "Follower". "Leader" and
"Follower", respectively. Additionally, all instances of "MS"
in reference (when
referring to the Database Description packet bit bit) are renamed to "L". Additionally,
And in "Receiving Database Description Packets,
Section 7.5, the parenthentical Packets" (Section 7.5),
"master or slave" is replaced by "Leader or Follower". Follower" in the
parenthetical.
8. Update to RFC5838
This Standards Track document specifies the RFC 5838
"Support of Address Families in OSPFv3" [RFC5838]. [RFC5838] is a Standards
Track document. "Database Description Maximum Transmission Unit
(MTU) Specification for Non-IPv6 AFs", Section 2.7 AFs" (Section 2.7) contains a
Database Description packet change figure which include that includes the "MS" MS bit.
In this figure, the "MS" field will be is renamed to the "L" field.
Additionally, in Section 2.4.,first paragraph, the first paragraph of "Changes to the Hello Packet Processing",
Processing" (Section 2.4), the text is updated to remove the non-inclusive non-
inclusive terms pertaining to unreachability handling as follows:
| When an OSPFv3 router does not support this specification and an
| interface is configured with the Instance ID corresponding to a an
| IPv4 AF, packets could be routed toward this interface and
| dropped. This could happen due to misconfiguration or a router
| software downgrade. Packet reception and dropping on an interface
not configured with the packet AF. For example, an IPv4 packet could be received
| on an interface not supporting IPv4 since a router that doesn't
| support this specification can still include the interface in an
| SPF-calculated path as long as it establishes adjacencies using
| the Instance ID corresponding to the IPv4 AF. Note that OSPPFv3 OSPFv3
| Router-LSAs and Network-LSAs are AF-agnostic.
9. Acknowledgements
Thanks to Dhruv Dhody, Adrian Farrel, Barry Leiba, and Erik Kline for
review and comments.
10. IANA Considerations
IANA is requested to rename bit 0x01 in
In the "Database Description (DD) Packet Flags" registry registry, IANA has
updated the description for value 0x01 to "Leader (L-bit)" and to add a
reference to has
added this document.
11. document as a reference, as shown below.
Value: 0x01
Description: Leader (L-bit)
Reference: [RFC2328] [RFC9454]
10. Security Considerations
This document updates the terminology used in OSPF RFCs without any
modification to the specifications of the protocol. As such, the
security characteristics of OSPF do not change.
12.
11. References
12.1.
11.1. Normative References
[RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328,
DOI 10.17487/RFC2328, April 1998,
<https://www.rfc-editor.org/info/rfc2328>.
[RFC4222] Choudhury, G., Ed., "Prioritized Treatment of Specific
OSPF Version 2 Packets and Congestion Avoidance", BCP 112,
RFC 4222, DOI 10.17487/RFC4222, October 2005,
<https://www.rfc-editor.org/info/rfc4222>.
[RFC4811] Nguyen, L., Roy, A., and A. Zinin, "OSPF Out-of-Band Link
State Database (LSDB) Resynchronization", RFC 4811,
DOI 10.17487/RFC4811, March 2007,
<https://www.rfc-editor.org/info/rfc4811>.
[RFC5243] Ogier, R., "OSPF Database Exchange Summary List
Optimization", RFC 5243, DOI 10.17487/RFC5243, May 2008,
<https://www.rfc-editor.org/info/rfc5243>.
[RFC5340] Coltun, R., Ferguson, D., Moy, J., and A. Lindem, "OSPF
for IPv6", RFC 5340, DOI 10.17487/RFC5340, July 2008,
<https://www.rfc-editor.org/info/rfc5340>.
[RFC5614] Ogier, R. and P. Spagnolo, "Mobile Ad Hoc Network (MANET)
Extension of OSPF Using Connected Dominating Set (CDS)
Flooding", RFC 5614, DOI 10.17487/RFC5614, August 2009,
<https://www.rfc-editor.org/info/rfc5614>.
[RFC5838] Lindem, A., Ed., Mirtorabi, S., Roy, A., Barnes, M., and
R. Aggarwal, "Support of Address Families in OSPFv3",
RFC 5838, DOI 10.17487/RFC5838, April 2010,
<https://www.rfc-editor.org/info/rfc5838>.
12.2.
11.2. Informative References
[NISTIR8366]
National Institute of Standards and Technology (NIST),
"Guidance for NIST Staff on Using Inclusive Language in
Documentary Standards, National Institute of Standards and
Technology (NIST) Interagency or Internal Standards", NIST Interagency/Internal Report 8366",
NISTIR
(NISTIR) 8366, April 2021,
<https://doi.org/10.6028/NIST.IR.8366>.
Acknowledgements
Thanks to Dhruv Dhody, Adrian Farrel, Erik Kline, and Barry Leiba for
their reviews and comments.
Authors' Addresses
Mike Fox
IBM
3039 E Cornwallis Rd Rd.
Research Triangle Park, NC 27709
United States of America
Email: mjfox@us.ibm.com
Acee Lindem
LabN Consulting LLC Consulting, L.L.C.
301 Midenhall Way
Cary, NC 27513
United States of America
Email: acee.ietf@gmail.com
Alvaro Retana
Futurewei Technologies, Inc.
2330 Central Expressway
Santa Clara, CA 95050
United States of America
Email: aretana@futurewei.com