[Idr] RFC 9072 on Extended Optional Parameters Length for BGP OPEN Message
rfc-editor@rfc-editor.org Thu, 15 July 2021 23:25 UTC
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Subject: [Idr] RFC 9072 on Extended Optional Parameters Length for BGP OPEN Message
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A new Request for Comments is now available in online RFC libraries.
RFC 9072
Title: Extended Optional Parameters Length for
BGP OPEN Message
Author: E. Chen,
J. Scudder
Status: Standards Track
Stream: IETF
Date: July 2021
Mailbox: enchen@paloaltonetworks.com,
jgs@juniper.net
Pages: 6
Updates: RFC 4271
I-D Tag: draft-ietf-idr-ext-opt-param-13.txt
URL: https://www.rfc-editor.org/info/rfc9072
DOI: 10.17487/RFC9072
The Optional Parameters in the BGP OPEN message as defined in the
base BGP specification are limited to 255 octets due to a one-octet
length field. BGP capabilities are carried in this field and may
foreseeably exceed 255 octets in the future, leading to concerns
about this limitation.
This document updates RFC 4271 by extending, in a backward-compatible
manner, the length of the Optional Parameters in a BGP OPEN message.
The Parameter Length field of individual Optional Parameters is also
extended.
This document is a product of the Inter-Domain Routing Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
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