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PCE Communication Protocol (PCEP) Extensions for Using the PCE as a Central Controller (PCECC) for Segment Routing over IPv6 (SRv6) Segment Identifier (SID) Allocation and Distribution.

Document Type Replaced Internet-Draft (pce WG)
Expired & archived
Authors Zhenbin Li , Shuping Peng , Xuesong Geng , Mahendra Singh Negi
Last updated 2023-02-08 (Latest revision 2023-01-15)
Replaced by draft-ietf-pce-pcep-extension-pce-controller-srv6
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Adopted by a WG
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-pce-pcep-extension-pce-controller-srv6
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The PCE is a core component of Software-Defined Networking (SDN) systems. A PCE-based Central Controller (PCECC) can simplify the processing of a distributed control plane by blending it with elements of SDN and without necessarily completely replacing it. This document specifies the procedures and Path Computation Element Communication Protocol (PCEP) extensions when a PCE-based controller is also responsible for configuring the forwarding actions on the routers, in addition to computing the paths for packet flows in the for Segment Routing (SR) in IPv6 (SRv6) network and telling the edge routers what instructions to attach to packets as they enter the network. PCECC is further enhanced for SRv6 SID (Segment Identifier) allocation and distribution.


Zhenbin Li
Shuping Peng
Xuesong Geng
Mahendra Singh Negi

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