Static PCEP Link State
draft-chen-pce-pcc-ted-08
PCE Working Group H. Chen
Internet-Draft Futurewei
Intended status: Standards Track M. Toy
Expires: July 10, 2021 Verizon
X. Liu
Volta Networks
L. Liu
Fujitsu
Z. Li
China Mobile
January 6, 2021
Static PCEP Link State
draft-chen-pce-pcc-ted-08
Abstract
This document presents extensions to the Path Computation Element
Communication Protocol (PCEP) for a PCC to advertise the information
about the links without running IGP and for a PCE to build a TED
based on the information received.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Conventions Used in This Document . . . . . . . . . . . . . . 3
4. Link Information . . . . . . . . . . . . . . . . . . . . . . 3
5. Extensions to PCEP . . . . . . . . . . . . . . . . . . . . . 4
5.1. Extension to Existing Message . . . . . . . . . . . . . . 4
5.1.1. TLVs . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1.2. Sub-TLVs . . . . . . . . . . . . . . . . . . . . . . 5
5.2. Procedures . . . . . . . . . . . . . . . . . . . . . . . 6
5.2.1. PCC Procedures . . . . . . . . . . . . . . . . . . . 6
5.2.2. PCE Procedures . . . . . . . . . . . . . . . . . . . 7
6. Security Considerations . . . . . . . . . . . . . . . . . . . 8
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
8. Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . 8
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 8
9.1. Normative References . . . . . . . . . . . . . . . . . . 8
9.2. Informative References . . . . . . . . . . . . . . . . . 9
Appendix A. New Message . . . . . . . . . . . . . . . . . . . . 10
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 11
1. Introduction
A PCE architecture is described in RFC 4655, in which a Traffic
Engineering Database (TED) for a PCE is constructed based on the link
information from IGP (OSPF or IS-IS) running in the domain for which
the PCE is responsible.
For a domain without running IGP, the PCE responsible for the domain
may obtain the link information from a PCC running on each node in
the domain.
This document presents extensions to the Path Computation Element
Communication Protocol (PCEP) for a PCC to advertise the information
about the links attached to the node running the PCC and for a PCE to
build the TED based on the information received from the PCC.
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2. Terminology
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