draft-ietf-idr-bgp-extended-messages-24.txt   draft-ietf-idr-bgp-extended-messages-25.txt 
Network Working Group R. Bush Network Working Group R. Bush
Internet-Draft Internet Initiative Japan Internet-Draft Internet Initiative Japan
Updates: 4271 (if approved) K. Patel Updates: 4271 (if approved) K. Patel
Intended status: Standards Track Arrcus, Inc. Intended status: Standards Track Arrcus, Inc.
Expires: May 23, 2018 D. Ward Expires: November 22, 2018 D. Ward
Cisco Systems Cisco Systems
November 19, 2017 May 21, 2018
Extended Message support for BGP Extended Message support for BGP
draft-ietf-idr-bgp-extended-messages-24 draft-ietf-idr-bgp-extended-messages-25
Abstract Abstract
The BGP specification mandates a maximum BGP message size of 4096 The BGP specification mandates a maximum BGP message size of 4096
octets. As BGP is extended to support newer AFI/SAFIs and other octets. As BGP is extended to support newer AFI/SAFIs and other
features, there is a need to extend the maximum message size beyond features, there is a need to extend the maximum message size beyond
4096 octets. This document updates the BGP specification RFC4271 by 4096 octets. This document updates the BGP specification RFC4271 by
providing an extension to BGP to extend its current maximum message providing an extension to BGP to extend its current maximum message
size from 4096 octets to 65535 octets for all except the OPEN size from 4096 octets to 65535 octets for all except the OPEN
message. message.
skipping to change at page 1, line 47 skipping to change at page 1, line 47
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 23, 2018. This Internet-Draft will expire on November 22, 2018.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2018 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
skipping to change at page 3, line 21 skipping to change at page 3, line 21
BGP Extended Messages. BGP Extended Messages.
A peer which does not advertise this capability MUST NOT send BGP A peer which does not advertise this capability MUST NOT send BGP
Extended Messages, and BGP Extended Messages MUST NOT be sent to it. Extended Messages, and BGP Extended Messages MUST NOT be sent to it.
The BGP Extended Message Capability is a new BGP Capability [RFC5492] The BGP Extended Message Capability is a new BGP Capability [RFC5492]
defined with Capability code 6 and Capability length 0. defined with Capability code 6 and Capability length 0.
4. Operation 4. Operation
A BGP speaker that is willing to send and receive BGP Extended A BGP speaker that is capable of sending and receiving BGP Extended
Messages with a peer SHOULD advertise the BGP Extended Message Messages SHOULD advertise the BGP Extended Message Capability to the
Capability to the peer using BGP Capabilities Advertisement peer using BGP Capabilities Advertisement [RFC5492]. A BGP speaker
[RFC5492]. A BGP speaker MAY send Extended Messages to its peer only MAY send Extended Messages to its peer only if it has received the
if it has received the Extended Message Capability from that peer. Extended Message Capability from that peer.
The Extended Message Capability only applies to all messages except The Extended Message Capability only applies to all messages except
for the OPEN message. This exception is reduce compexity of for the OPEN message. This exception is reduce compexity of
providing backward compatibility providing backward compatibility
An implementation that advertises support for BGP Extended Messages An implementation that advertises support for BGP Extended Messages
MUST be capable of receiving a message with a length up to and MUST be capable of receiving a message with a length up to and
including 65535 octets. including 65535 octets.
Applications generating information which might be encapsulated Applications generating information which might be encapsulated
 End of changes. 6 change blocks. 
10 lines changed or deleted 10 lines changed or added

This html diff was produced by rfcdiff 1.46. The latest version is available from http://tools.ietf.org/tools/rfcdiff/