[Idr] I-D Action: draft-ietf-idr-bgp-ls-link-mtu-12.txt

internet-drafts@ietf.org Thu, 21 May 2026 02:02 UTC

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Date: Wed, 20 May 2026 19:02:32 -0700
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Subject: [Idr] I-D Action: draft-ietf-idr-bgp-ls-link-mtu-12.txt
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Internet-Draft draft-ietf-idr-bgp-ls-link-mtu-12.txt is now available. It is a
work item of the Inter-Domain Routing (IDR) WG of the IETF.

   Title:   Signaling Maximum Transmission Unit (MTU) using BGP-LS
   Authors: Yongqing Zhu
            Zhibo Hu
            Shuping Peng
            Robbins Mwehaire
   Name:    draft-ietf-idr-bgp-ls-link-mtu-12.txt
   Pages:   9
   Dates:   2026-05-20

Abstract:

   Segment Routing (SR) leverages the source routing paradigm, which can
   be directly applied to the MPLS architecture and IPv6 architecture,
   with a new type of routing header.  Since multiple labels or SRv6
   SIDs are pushed in the packets, it is more likely that the packet
   size exceeds the path MTU of SR tunnel.  However, SR uses the IGP as
   the routing protocol and does not support the negotiation of the Path
   MTU.

   BGP Link State (BGP-LS) describes a mechanism by which link-state and
   TE information can be collected from networks and shared with
   external components using the BGP routing protocol.  This document
   specifies the extensions to BGP-LS to carry MTU information of link.
   The centralized controller (PCE/SDN) calculates the Path MTU while
   completing the service path calculation based on the information
   transmitted by the BGP-LS.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-ls-link-mtu/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-ls-link-mtu-12

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-idr-bgp-ls-link-mtu-12

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts

[Idr] I-D Action: draft-ietf-idr-bgp-ls-link-mtu-… internet-drafts