| 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 | |||
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