Internet DRAFT - draft-ietf-idr-deprecate-8-9-10
draft-ietf-idr-deprecate-8-9-10
IDR J. Snijders
Internet-Draft Fastly
Intended status: Standards Track 12 October 2022
Expires: 15 April 2023
Deprecation of BGP OPEN Message Error subcodes 8, 9, and 10.
draft-ietf-idr-deprecate-8-9-10-00
Abstract
This document requests IANA to mark BGP OPEN Message Error subcodes
8, 9, and 10 as "deprecated".
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on 15 April 2023.
Copyright Notice
Copyright (c) 2022 IETF Trust and the persons identified as the
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Internet-Draft Deprecation Of BGP OPEN Error subcodes October 2022
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2
3. Security Considerations . . . . . . . . . . . . . . . . . . . 2
4. Informative References . . . . . . . . . . . . . . . . . . . 2
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3
1. Introduction
It has been discovered that certain BGP OPEN Message Error subcodes
have been used in BGP implementations which have been deployed in the
wild while not being assigned by the IANA for such usage.
Unregistered usage of BGP OPEN Message Error subcodes can lead to
increased difficulty when troubleshooting why BGP sessions are torn
down.
The use of these unregistered values was noticed when the concept of
Route Leak Prevention and Detection using Roles in UPDATE and OPEN
Messages [RFC9234] was initially assigned value 8 by IANA. It was
subsequently discovered that a widely-deployed BGP-4 [RFC4271]
implementation had released code which used BGP OPEN Message Error
Subcode 8. As a workaround, a new Early IANA Allocation is to be
requested.
The squatting of values 8, 9, and 10 has been confirmed by the
involved vendors or through source code review.
2. IANA Considerations
Per this document, IANA is requested to mark values 8, 9, and 10 as
"deprecated" in the "OPEN Message Error subcodes" registry under the
"Border Gateway Protocol (BGP) Parameters" group. The marking
"deprecated" meaning "use is not recommended" ([RFC8126]).
3. Security Considerations
There are no meaningful security consequences arising from this
registry update.
4. Informative References
[RFC4271] Rekhter, Y., Ed., Li, T., Ed., and S. Hares, Ed., "A
Border Gateway Protocol 4 (BGP-4)", RFC 4271,
DOI 10.17487/RFC4271, January 2006,
<https://www.rfc-editor.org/info/rfc4271>.
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Internet-Draft Deprecation Of BGP OPEN Error subcodes October 2022
[RFC8126] Cotton, M., Leiba, B., and T. Narten, "Guidelines for
Writing an IANA Considerations Section in RFCs", BCP 26,
RFC 8126, DOI 10.17487/RFC8126, June 2017,
<https://www.rfc-editor.org/info/rfc8126>.
[RFC9234] Azimov, A., Bogomazov, E., Bush, R., Patel, K., and K.
Sriram, "Route Leak Prevention and Detection Using Roles
in UPDATE and OPEN Messages", RFC 9234,
DOI 10.17487/RFC9234, May 2022,
<https://www.rfc-editor.org/info/rfc9234>.
Author's Address
Job Snijders
Fastly
Amsterdam
Netherlands
Email: job@fastly.com
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