Path Computation Element Communication Protocol (PCEP) Extension for Path Segment in Segment Routing (SR)
This is an older version of an Internet-Draft whose latest revision state is "Active".
Expired & archived
|Authors||Cheng Li , Mach Chen , Weiqiang Cheng , Rakesh Gandhi , Quan Xiong|
|Last updated||2023-02-20 (Latest revision 2022-08-19)|
|RFC stream||Internet Engineering Task Force (IETF)|
|Additional resources||Mailing list discussion|
|Stream||WG state||WG Document|
|Send notices to||(None)|
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
The Path Computation Element (PCE) provides path computation functions in support of traffic engineering in Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. The Source Packet Routing in Networking (SPRING) architecture describes how Segment Routing (SR) can be used to steer packets through an IPv6 or MPLS network using the source routing paradigm. A Segment Routed Path can be derived from a variety of mechanisms, including an IGP Shortest Path Tree (SPT), explicit configuration, or a Path Computation Element (PCE). Path identification is needed for several use cases such as performance measurement in Segment Routing (SR) network. This document specifies extensions to the Path Computation Element Communication Protocol (PCEP) to support requesting, replying, reporting and updating the Path Segment ID (Path SID) between PCEP speakers.
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