Subject: [Pce] I-D Action: draft-ietf-pce-pcep-extension-pce-controller-sr-04.txt

From: [email-masked]
Date: Sun, 06 Mar 2022 18:44:50 -0800

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Path Computation Element WG of the IETF.

        Title           : Path Computation Element Communication Protocol (PCEP) Procedures and Extensions for Using PCE as a Central Controller (PCECC) for Segment Routing (SR) MPLS Segment Identifier (SID) Allocation and Distribution.
        Authors         : Zhenbin Li
                          Shuping Peng
                          Mahendra Singh Negi
                          Quintin Zhao
                          Chao Zhou
	Filename        : draft-ietf-pce-pcep-extension-pce-controller-sr-04.txt
	Pages           : 34
	Date            : 2022-03-06

Abstract:
   The Path Computation Element (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.  Thus, the LSP can be
   calculated/set up/initiated and the label forwarding entries can also
   be downloaded through a centralized PCE server to each network device
   along the path while leveraging the existing PCE technologies as much
   as possible.

   This document specifies the procedures and 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 a segment routing (SR) network and telling the
   edge routers what instructions to attach to packets as they enter the
   network.  PCECC as defined in RFC 9050 is further enhanced for SR-
   MPLS SID (Segment Identifier) allocation and distribution.

The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-extension-pce-controller-sr/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-pce-pcep-extension-pce-controller-sr-04.html

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-extension-pce-controller-sr-04

Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts