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Status: Verified (1)

RFC 9857, "Advertisement of Segment Routing Policies Using BGP - Link State", October 2025

Source of RFC: idr (rtg)

Errata ID: 8709
Status: Verified
Type: Editorial
Publication Format(s) : TEXT, PDF, HTML

Reported By: Hyeonmin Lee
Date Reported: 2026-01-19
Verifier Name: Ketan Talaulikar
Date Verified: 2026-01-27

Section 5.1 says:

   In the case of an SRv6, the SR Binding SID sub-TLV does not have the
   ability to signal the SRv6 Endpoint behavior [RFC8986] or the
   structure of the SID.  Therefore, the SR Binding SID sub-TLV SHOULD
   NOT be used for the advertisement of an SRv6 Binding SID.  Instead,
   the SRv6 Binding SID TLV defined in Section 5.2 SHOULD be used for
   the signaling of an SRv6 Binding SID.  The use of the SR Binding SID
   sub-TLV for advertisement of the SRv6 Binding SID has been
   deprecated, and it is documented here only for backward compatibility
   with implementations that followed early draft versions of this
   specification.

It should say:

   In the case of an SRv6, the SR Binding SID TLV does not have the
   ability to signal the SRv6 Endpoint behavior [RFC8986] or the
   structure of the SID.  Therefore, the SR Binding SID TLV SHOULD
   NOT be used for the advertisement of an SRv6 Binding SID.  Instead,
   the SRv6 Binding SID TLV defined in Section 5.2 SHOULD be used for
   the signaling of an SRv6 Binding SID.  The use of the SR Binding SID
   TLV for advertisement of the SRv6 Binding SID has been
   deprecated, and it is documented here only for backward compatibility
   with implementations that followed early draft versions of this
   specification.

Notes:

The incorrect term `SR Binding SID sub-TLV' appears three times in the last paragraph of Section 5.1. The correct term is `SR Binding SID TLV'.

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