Segment Routing Path MTU in BGP
draft-ietf-idr-sr-policy-path-mtu-14
| Document | Type |
Expired Internet-Draft
(idr WG)
Expired & archived
|
|
|---|---|---|---|
| Authors | Cheng Li , Yongqing Zhu , Ahmed El Sawaf , Zhenbin Li , Guanming Zeng | ||
| Last updated | 2026-07-20 (Latest revision 2026-01-05) | ||
| Replaces | draft-li-idr-sr-policy-path-mtu | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | WG Document | |
| Associated WG milestone |
|
||
| Document shepherd | Susan Hares | ||
| IESG | IESG state | Expired | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | shares@ndzh.com |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
Segment Routing is a source routing paradigm that explicitly indicates the forwarding path for packets at the ingress node. An SR policy is a set of SR Policy candidate paths consisting of one or more segments with the appropriate SR path attributes. BGP distributes each SR Policy candidate path as combination of an prefix plus a the BGP Tunnel Encapsulation(Tunnel-Encaps) attribute containing an SR Policy Tunnel TLV with information on the SR Policy candidate path as a tunnel. However, the path maximum transmission unit (MTU) information for a segment list for SR path is not currently passed in the BGP Tunnel-Encaps attribute. . This document defines extensions to BGP to distribute path MTU information within SR policies.
Authors
Cheng Li
Yongqing Zhu
Ahmed El Sawaf
Zhenbin Li
Guanming Zeng
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)