Internet-Draft draft-ietf-lsr-srv6-mirror-sid-igp-encoding-00.txt is now
available. It is a work item of the Link State Routing (LSR) WG of the IETF.
Title: IGP Encoding for SRv6 Mirror SID in Egress Protection
Authors: Tao He
Ran Pang
Ying Liu
Zhibo Hu
Name: draft-ietf-lsr-srv6-mirror-sid-igp-encoding-00.txt
Pages: 25
Dates: 2026-09-14
Abstract:
This document specifies the IGP protocol extensions required to
support SRv6 path egress protection using the Mirror SID (End.M)
mechanism. It reuses the existing SRv6 End SID sub-TLV defined in
[RFC9352] (IS-IS, Section 7.2) and [RFC9513] (OSPFv3, Section 8) with
the End.M endpoint behavior (74) to advertise the Mirror SID and the
set of protected locators, and defines a new Protected Locators
sub-(sub-)TLV, enabling a backup egress node (protector) to signal
its capability to protect a primary egress node within a single link-
state IGP area.
This document is a companion to
[I-D.ietf-rtgwg-srv6-egress-protection], which specifies the overall
SRv6 path egress protection mechanism and the End.M behavior. The
IGP encoding defined herein provides the signaling substrate for that
mechanism.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-srv6-mirror-sid-igp-encoding/
There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-lsr-srv6-mirror-sid-igp-encoding-00.html
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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