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IETF RFC 8283
[ACTIVE]

An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control

Metadata

Publisher
IETF
Doc Type
Informational
Pages
25
Abstract
The Path Computation Element (PCE) is a core component of Software- Defined Networking (SDN) systems. It can compute optimal paths for traffic across a network and can also update the paths to reflect changes in the network or traffic demands. PCE was developed to derive paths for MPLS Label Switched Paths (LSPs), which are supplied to the head end of the LSP using the Path Computation Element Communication Protocol (PCEP). SDN has a broader applicability than signaled MPLS traffic-engineered (TE) networks, and the PCE may be used to determine paths in a range of use cases including static LSPs, segment routing, Service Function Chaining (SFC), and most forms of a routed or switched network. It is, therefore, reasonable to consider PCEP as a 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 control protocol in this environment, and introduces the implications for the protocol. A PCE-based central controller can simplify the processing of a distributed control plane by blending it with elements of SDN and without necessarily completely replacing it. This document does not describe use cases in detail and does not define protocol extensions: that work is left for other documents.
Publication Date
2017-12-01
Status Note
Informational
DOI
10.17487/RFC8283
Link
https://doi.org/10.17487/RFC8283
Author(s)
Adrian Farrel
Quintin Zhao
Zhenbin Li
Chao Zhou
Keyword(s)
PCE, SDN
Latest version of IETF RFC 8283

Document Versions — IETF RFC 8283

  • ▶ IETF RFC 8283 (2017-12-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

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IETF RFC 8283, An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control. Available at https://doi.org/10.17487/RFC8283
Snippet:
IETF RFC 8283, An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control. Available at https://doi.org/10.17487/RFC8283

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IETF RFC 8283, An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control. Available at https://doi.org/10.17487/RFC8283
Snippet:
<span class="citation"><cite>IETF RFC 8283</cite>, An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control. Available at <a href="https://doi.org/10.17487/RFC8283" target="_blank" rel="noopener">https://doi.org/10.17487/RFC8283</a></span>

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Preview:
IETF RFC 8283, An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control
doi: 10.17487/RFC8283
url: https://doi.org/10.17487/RFC8283
Snippet:
<li>
<cite id="bib-rfc8283">IETF RFC 8283</cite>, An Architecture for Use of PCE and the PCE Communication Protocol (PCEP) in a Network with Central Control
<span class="doi">10.17487/RFC8283</span>
</li>

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