Link State Routing M. Fox Internet-Draft IBM Updates: 2328 5340 4222 4811 5243 5614 5838 (if A. Lindem approved) Cisco Systems Intended status: Standards Track A. Retana Expires: 10 January 2023 Futurewei Technologies, Inc. 9 July 2022 Update to OSPF Terminology draft-ietf-lsr-ospf-terminology-03 Abstract This document updates some OSPF terminology to be in line with inclusive language used in the industry. The IETF has designated National Institute of Standards and Technology (NIST) "Guidance for NIST Staff on Using Inclusive Language in Documentary Standards" for its inclusive language guidelines. This document updates RFC2328, RFC5340, RFC4222, RFC4811, RFC5243, RFC5614, and RFC5838. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 10 January 2023. Copyright Notice Copyright (c) 2022 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. Fox, et al. Expires 10 January 2023 [Page 1] Internet-Draft OSPF Terminology July 2022 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 2. Update to RFC2328 . . . . . . . . . . . . . . . . . . . . . . 2 3. Update to RFC5340 . . . . . . . . . . . . . . . . . . . . . . 3 4. Update to RFC4222 . . . . . . . . . . . . . . . . . . . . . . 3 5. Update to RFC4811 . . . . . . . . . . . . . . . . . . . . . . 3 6. Update to RFC5243 . . . . . . . . . . . . . . . . . . . . . . 3 7. Update to RFC5614 . . . . . . . . . . . . . . . . . . . . . . 4 8. Update to RFC5838 . . . . . . . . . . . . . . . . . . . . . . 4 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5 11. Security Considerations . . . . . . . . . . . . . . . . . . . 5 12. References . . . . . . . . . . . . . . . . . . . . . . . . . 5 12.1. Normative References . . . . . . . . . . . . . . . . . . 5 12.2. Informative References . . . . . . . . . . . . . . . . . 6 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 National Institute of Standards and Technology (NIST) "Guidance for NIST Staff on Using Inclusive Language in Documentary Standards" [NISTIR8366] for its inclusive language guidelines. This document updates [RFC2328], [RFC5340], [RFC4222], [RFC4811], [RFC5243], [RFC5614], and [RFC5838]. 2. Update to RFC2328 The base OSPFv2 specification [RFC2328] defines the synchronization of databases as two routers froming a "master/slave relationship". All instances of these terms are replaced by leader/follower, respectively. The Master (MS) bit in the database description packet is renamed the Leader (L) bit. The operation of OSPFv2 is not modified. The Leader/Follower terminology and Leader (L) Bit definition changes impact the following sections: 7.2 "The Synchronization of Databases", 10 "The Fox, et al. Expires 10 January 2023 [Page 2] Internet-Draft OSPF Terminology July 2022 Neighbor Data Structures", 10.1 "Neighbor states", 10.2 "Events causing neighbor state changes", 10.6 "Receiving Database Description Packets", 10.8 "Sending Database Description Packets", 10.10 "An Example", and A.3.3 "The Database Description packet". 3. Update to RFC5340 The base OSPFv3 specification [RFC5340] defines the 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, respectively. The Master/Slave (MS) bit in the database description packet is renamed the Leader (L) bit. The operation of OSPFv3 is not modified. The Leader/Follower terminology and Leader (L) Bit definition changes impact section A.3.3 "The Database Description packet". 4. Update to RFC4222 This Best Current Practice (BCP) document describes "Prioritized Treatment of Specific OSPF Version 2 Packets and Congestion Avoidance" [RFC4222]. There is an example OSFPv2 packet sequence in Appendix C, (2), that refers to the "slave" in a database exchange. This reference will be renamed to "follower". 5. Update to RFC4811 This Experimental document specifies "OSPF Out-of-Band Link State Database (LSDB) Resynchronization" [RFC4811]. Section 2.4 includes a Database Description packet figure and a description of the attendant encoding changes for Out-of-Band Resynchronization. In the figure and the description, all instances of MS when referring the Database Description packet bit are renamed to "L". There is also a reference to "Master" in this section that is renamed to "Leader". 6. Update to RFC5243 This Informational document describes an "OSPF Database Exchange Summary List Optimization" [RFC5243]. The Introduction, Section 1, references "Master or Slave". This will be replaced by "Leader or Follower". Section 3.0 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 rename to "Follower". Fox, et al. Expires 10 January 2023 [Page 3] Internet-Draft OSPF Terminology July 2022 7. Update to RFC5614 This Experimental document specifies the "Mobile Ad Hoc Network (MANET) Extension of OSPF Using Connected Dominating Set (CDS) Flooding" [RFC5614]. "Changes to the Neighbor State Machine", Section 7.2 contains modifications to the neighbor state machine updated from [RFC2328]. In this transition to "2-way" state, all instances of "Master" are renamed to "Leader" and all instances of "Slave" are renamed to "Follower". Addiitionally, instances of "MS" in reference to the Database Description packet bit are renamed to "L". Additionally, in "Receiving Database Description Packets, Section 7.5, the parenthentical "master or slave" is replaced by "leader or follower". 8. Update to RFC5838 This Standards Track document specifies the "Support of Address Families in OSPFv3" [RFC5838]. "Database Description Maximum Transmission Unit (MTU) Specification for Non-IPv6 AFs", Section 2.7 contains a Database Description packet change figure which include the "MS" bit. In this figure, the "MS" field will be renamed to "L" field. Additionally, in Section 2.4.,first paragraph, "Changes to the Hello Packet Processing", the text is updated to remove the 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 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, e.g., IPv4 is possible because a router that doesn't support this specification can still be included in the SPF calculated path as long as it establishes adjacencies using the Instance ID corresponding to the IPv4 AF. Note that OSPPFv3 Router-LSAs and Network-LSAs are AF-agnostic. Figure 1: RFC 5838, Section 2.4 - Updated First Paragraph 9. Acknowledgements Thanks to Dhruv Dhody and Adrian Farrel for review and comments. Fox, et al. Expires 10 January 2023 [Page 4] Internet-Draft OSPF Terminology July 2022 10. IANA Considerations IANA is requested to rename bit 0x01 in the "Database Description (DD) Packet Flags" registry to "Leader (L-bit)" and to add a reference to this document. 11. 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. References 12.1. Normative References [RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328, DOI 10.17487/RFC2328, April 1998, . [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, . [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, . [RFC5243] Ogier, R., "OSPF Database Exchange Summary List Optimization", RFC 5243, DOI 10.17487/RFC5243, May 2008, . [RFC5340] Coltun, R., Ferguson, D., Moy, J., and A. Lindem, "OSPF for IPv6", RFC 5340, DOI 10.17487/RFC5340, July 2008, . [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, . [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, . Fox, et al. Expires 10 January 2023 [Page 5] Internet-Draft OSPF Terminology July 2022 12.2. Informative References [NISTIR8366] "Guidance for NIST Staff on Using Inclusive Language in Documentary Standards, National Institute of Standards and Technology (NIST) Interagency or Internal Report 8366", NISTIR 8366, April 2021, . Authors' Addresses Mike Fox IBM 3039 E Cornwallis Rd Research Triangle Park, NC 27709 United States of America Email: mjfox@us.ibm.com Acee Lindem Cisco Systems 301 Midenhall Way Cary, NC 27513 United States of America Email: acee@cisco.com Alvaro Retana Futurewei Technologies, Inc. 2330 Central Expressway Santa Clara, CA 95050 United States of America Email: aretana@futurewei.com Fox, et al. Expires 10 January 2023 [Page 6]