Static PCEP Link State
draft-chen-pce-pcc-ted-07
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PCE Working Group H. Chen
Internet-Draft Futurewei
Intended status: Standards Track M. Toy
Expires: January 11, 2021 Verizon
X. Liu
Volta Networks
L. Liu
Fujitsu
Z. Li
China Mobile
July 10, 2020
Static PCEP Link State
draft-chen-pce-pcc-ted-07
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.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 11, 2021.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
Chen, et al. Expires January 11, 2021 [Page 1]
Internet-Draft PCE-TED July 2020
publication of this document. Please review these documents
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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.
Chen, et al. Expires January 11, 2021 [Page 2]
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2. Terminology
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