A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : An Architecture for Use of PCE and PCEP in a Network with Central Control
Authors : Adrian Farrel
Quintin Zhao
Robin Li
Chao Zhou
Filename : draft-zhao-teas-pce-control-function-01.txt
Pages : 21
Date : 2016-05-24
Abstract:
The Path Computation Element (PCE) has become established as a core
component of Software Defined Networking (SDN) systems. It can
compute optimal paths for traffic across a network for any definition
of "optimal" and can also monitor changes in resource availability
and traffic demands to update the paths.
Conventionally, the PCE has been used to derive paths for MPLS Label
Switched Paths (LSPs). These paths are supplied using the Path
Computation Element Communication Protocol (PCEP) to the head end of
the LSP for signaling in the MPLS network.
SDN has a far broader applicability than just signaled MPLS traffic
engineered networks, and the PCE may be used to determine paths in a
wide range of use cases including static LSPs, segment routing,
service function chaining (SFC), and indeed any form of routed or
switched network. It is, therefore reasonable to consider PCEP as a
general southbound control protocol for use in these environments to
allow the PCE to be fully enabled as a central controller.
This document briefly introduces the architecture for PCE as a
central controller, examines the motivations and applicability for
PCEP as a southbound interface, and introduces the implications for
the protocol. This document does not describe the use cases in
detail and does not define protocol extensions: that work is left for
other documents.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-zhao-teas-pce-control-function/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-zhao-teas-pce-control-function-01
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-zhao-teas-pce-control-function-01
Please note that it may take a couple of minutes from the time of submission
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