RFC Errata
RFC 4271, "A Border Gateway Protocol 4 (BGP-4)", January 2006
Note: This RFC has been updated by RFC 6286, RFC 6608, RFC 6793, RFC 7606, RFC 7607, RFC 7705, RFC 8212, RFC 8654, RFC 9072
Source of RFC: idr (rtg)
Errata ID: 1332
Status: Rejected
Type: Technical
Publication Format(s) : TEXT
Reported By: Aaron Hughes
Date Reported: 2008-02-26
Rejected by: Stewart Bryant
Date Rejected: 2011-08-02
Section 4.5 says:
OPEN Message Error subcodes: 1 - Unsupported Version Number. 2 - Bad Peer AS. 3 - Bad BGP Identifier. 4 - Unsupported Optional Parameter. 5 - [Deprecated - see Appendix A]. 6 - Unacceptable Hold Time.
It should say:
OPEN Message Error subcodes: 1 - Unsupported Version Number. 2 - Bad Peer AS. 3 - Bad BGP Identifier. 4 - Unsupported Optional Parameter. 5 - [Deprecated - see Appendix A]. 6 - Unacceptable Hold Time. 7 - Unsupported Capability
Notes:
7 - Unsupported Capability orig from RFC3392 seems to have accidently disappeared.
Thanks!
Aaron
--VERIFIER NOTES--
The working group debated this point and concluded the following:
The functionality (specifically, BGP Capabilities) this error code applies to does not appear anywhere in RFC 4271 (or RFC 1771). As IANA records, this error subcode is defined in RFC5492/RFC3392, along with the related functionality. The IANA registry is the final authority as to code point assignments, and is correct as written. Accordingly, this erratum is rejected.