Internet DRAFT - draft-spaghetti-idr-deprecate-8-9-10
draft-spaghetti-idr-deprecate-8-9-10
IDR J. Snijders
Internet-Draft Fastly
Intended status: Standards Track 30 June 2022
Expires: 1 January 2023
Deprecation of BGP OPEN Message Error subcodes 8, 9, and 10.
draft-spaghetti-idr-deprecate-8-9-10-01
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.
Internet-Drafts are working documents of the Internet Engineering
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on 1 January 2023.
Copyright Notice
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Internet-Draft Deprecation Of BGP OPEN Error subcodes June 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 [I-D.ietf-idr-bgp-open-policy] 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
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Internet-Draft Deprecation Of BGP OPEN Error subcodes June 2022
[I-D.ietf-idr-bgp-open-policy]
Azimov, A., Bogomazov, E., Bush, R., Patel, K., and K.
Sriram, "Route Leak Prevention and Detection using Roles
in UPDATE and OPEN Messages", Work in Progress, Internet-
Draft, draft-ietf-idr-bgp-open-policy-18, 4 December 2021,
<https://www.ietf.org/archive/id/draft-ietf-idr-bgp-open-
policy-18.txt>.
[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>.
[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>.
Author's Address
Job Snijders
Fastly
Amsterdam
Netherlands
Email: job@fastly.com
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