RSVP-TE Extensions in Support of Proactive Protection
draft-lin-teas-gmpls-proactive-protection-00
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TEAS Working Group Yi Lin
Internet Draft Huawei Technologies
Intended status: Standards Track Bin Yeong Yoon
ETRI
Expires: September 2020 March 9, 2020
RSVP-TE Extensions in Support of Proactive Protection
draft-lin-teas-gmpls-proactive-protection-00.txt
Status of this Memo
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Internet-Draft GMPLS Proactive Protection March 2020
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Abstract
This document describes protocol-specific procedures and extensions
for Generalized Multi-Protocol Label Switching (GMPLS) Resource
ReSerVation Protocol - Traffic Engineering (RSVP-TE) signaling to
support Label Switched Path (LSP) Proactive Protection, which create
the protecting LSP after a failure is predicted and before it
becomes a real failure.
Table of Contents
1. Introduction .................................................. 2
2. Conventions used in this document ............................. 3
3. Overview of Predicted Failure and Related Recovery Methods .... 3
3.1. Predicted Failure ........................................ 3
3.2. Proactive Protection ..................................... 4
4. Modified PROTECTION Object Format ............................. 6
5. Extension to ERROR_SPEC Object ................................ 7
5.1. New Error Code / Sub-code ................................ 7
5.2. New TLVs in ERROR_SPEC Object ............................ 7
6. End-to-end Proactive Protection ............................... 8
6.1. Creation of the Protected LSP ............................ 8
6.2. Notification of Predicted Failure Event .................. 9
6.3. Tearing Down of the Protecting LSP ....................... 9
7. Proactive Segment Protection ................................. 10
7.1. Creation of the Protected LSP ........................... 10
7.2. Notification of Predicted Failure Event ................. 11
7.3. Tearing Down of the Segment Recovery LSP ................ 12
7.4. Priority and Resource Pre-emption ....................... 12
8. Consideration of Backward Compatibility ...................... 14
9. Security Considerations ...................................... 14
10. IANA Considerations.......................................... 14
11. References .................................................. 14
11.1. Normative References ................................... 14
11.2. Informative References ................................. 15
12. Authors' Addresses .......................................... 15
1. Introduction
[RFC4872] and [RFC4873] describe protocol-specific procedures and
extensions for GMPLS RSVP-TE signaling to support end-to-end LSP
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Internet-Draft GMPLS Proactive Protection March 2020
recovery (including protection and restoration) and segment LSP
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