Segment Routing Recursive Information

Document Type Expired Internet-Draft (candidate for spring WG)
Authors Clarence Filsfils  , Stefano Previdi  , Peter Psenak  , Les Ginsberg 
Last updated 2017-12-22 (latest revision 2017-06-20)
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state Call For Adoption By WG Issued
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active.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). There are use cases where it is desirable to utilize a SID associated with a given node in order to transport traffic destined to different local services supported by such node. This document defines the mechanism to do so and illustrates it.


Clarence Filsfils (
Stefano Previdi (
Peter Psenak (
Les Ginsberg (

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