Path Computation Element communication Protocol (PCEP) extension for associating Policies and Label Switched Paths (LSPs)
draft-ietf-pce-association-policy-07
PCE Working Group S. Litkowski
Internet-Draft S. Sivabalan
Intended status: Standards Track Cisco Systems, Inc.
Expires: May 2, 2020 J. Tantsura
Apstra, Inc.
J. Hardwick
Metaswitch Networks
M. Negi
Huawei Technologies
October 30, 2019
Path Computation Element communication Protocol (PCEP) extension for
associating Policies and Label Switched Paths (LSPs)
draft-ietf-pce-association-policy-07
Abstract
This document introduces a simple mechanism to associate policies to
a group of Label Switched Paths (LSPs) via an extension to the Path
Computation Element (PCE) Communication Protocol (PCEP).
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Motivation . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1. Policy based Constraints . . . . . . . . . . . . . . . . 5
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Policy Association Group . . . . . . . . . . . . . . . . . . 7
5.1. Policy Parameters TLV . . . . . . . . . . . . . . . . . . 7
6. Implementation Status . . . . . . . . . . . . . . . . . . . . 8
7. Security Considerations . . . . . . . . . . . . . . . . . . . 9
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
8.1. Association object Type Indicators . . . . . . . . . . . 9
8.2. PCEP TLV Type Indicators . . . . . . . . . . . . . . . . 10
9. Manageability Considerations . . . . . . . . . . . . . . . . 10
9.1. Control of Function and Policy . . . . . . . . . . . . . 10
9.2. Information and Data Models . . . . . . . . . . . . . . . 10
9.3. Liveness Detection and Monitoring . . . . . . . . . . . . 10
9.4. Verify Correct Operations . . . . . . . . . . . . . . . . 11
9.5. Requirements on Other Protocols . . . . . . . . . . . . . 11
9.6. Impact on Network Operations . . . . . . . . . . . . . . 11
10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 11
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
11.1. Normative References . . . . . . . . . . . . . . . . . . 11
11.2. Informative References . . . . . . . . . . . . . . . . . 12
Appendix A. Contributor Addresses . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction
[RFC5440] describes the Path Computation Element communication
Protocol (PCEP) which enables the communication between a Path
Computation Client (PCC) and a Path Control Element (PCE), or between
two PCEs based on the PCE architecture [RFC4655]. [RFC5394] provides
additional details on policy within the PCE architecture and also
provides context for the support of PCE Policy.
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