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BGP Next Hop Dependent Characteristics Attribute
draft-ietf-idr-entropy-label-18

Document Type Replaced Internet-Draft (idr WG)
Expired & archived
Authors Bruno Decraene , John Scudder , Kireeti Kompella , SATYA R MOHANTY , Bin Wen , Kevin Wang , Serge Krier
Last updated 2025-10-20 (Latest revision 2025-07-20)
Replaces draft-scudder-idr-entropy-label, draft-ietf-idr-next-hop-capability
Replaced by draft-ietf-idr-nhc, draft-ietf-idr-elc
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Formats
Reviews
Additional resources Mailing list discussion
Stream WG state WG Document
Other - see Comment Log
Document shepherd Susan Hares
Shepherd write-up Show Last changed 2023-11-06
IESG IESG state Replaced by draft-ietf-idr-elc, draft-ietf-idr-nhc
Consensus boilerplate Yes
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This Internet-Draft is no longer active.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

RFC 5492 allows a BGP speaker to advertise its capabilities to its peer. When a route is propagated beyond the immediate peer, it is useful to allow certain characteristics to be conveyed further. In particular, it is useful to advertise forwarding plane features. This specification defines a BGP transitive attribute to carry such information, the "Next Hop Dependent Characteristics Attribute," or NHC. Unlike the capabilities defined by RFC 5492, the characteristics conveyed in the NHC apply solely to the routes advertised by the BGP UPDATE that contains the particular NHC. This specification also defines an NHC characteristic that can be used to advertise the ability to process the MPLS Entropy Label as an egress LSR for all NLRI advertised in the BGP UPDATE. It updates RFC 6790 and RFC 7447 concerning this BGP signaling.

Authors

Bruno Decraene
John Scudder
Kireeti Kompella
SATYA R MOHANTY
Bin Wen
Kevin Wang
Serge Krier

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)