IS-IS Extensions for Segment Routing

Document Type Replaced Internet-Draft (isis WG)
Authors Stefano Previdi  , Clarence Filsfils  , Ahmed Bashandy  , Hannes Gredler  , Stephane Litkowski  , Jeff Tantsura 
Last updated 2014-08-17 (latest revision 2014-02-13)
Replaced by RFC 8667, RFC 8667
Stream Internet Engineering Task Force (IETF)
Expired & archived
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Additional Resources
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Stream WG state Adopted by a WG
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-isis-segment-routing-extensions, draft-ietf-isis-segment-routing-extensions
Consensus Boilerplate Yes
Telechat date
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Segment Routing (SR) allows for a flexible definition of end-to-end paths within IGP topologies by encoding paths as sequences of topological sub-paths, called "segments". These segments are advertised by the link-state routing protocols (IS-IS and OSPF). This draft describes the necessary IS-IS extensions that need to be introduced for Segment Routing.


Stefano Previdi (
Clarence Filsfils (
Ahmed Bashandy (
Hannes Gredler (
Stephane Litkowski (
Jeff Tantsura (

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