Rec. ITU-T G.8133 (08/2019) - Dual-homing protection for multi-protocol label switching transport profile pseudowires
Summary
History
FOREWORD
Table of Contents
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
     3.2.1 attachment circuit recovery domain: A recovery domain that is adjacent to the multi-protocol label switching transport profile (MPLS-TP) dual-homing protection domain and provides reliable transfer of information of the client traffic using two ...
     3.2.2 dual-homing nodes: Two provider edge (PE) nodes that are dual homed to the same customer edge node to provide PE node resiliency at the boundary of the multi-protocol label switching transport profile transport network.
     3.2.3 dual-node interconnection transport entity: The transport entity (i.e., pseudowire) established between dual-homing nodes. The dual-node interconnection transport entity is pre-established and used when there is a need for fast switchover.
     3.2.4 multi-protocol label switching transport profile dual-homing protection domain: A recovery domain that uses the mechanisms described in this Recommendation to provide reliable transfer of information of client traffic through a multi-protocol la...
4 Abbreviations and acronyms
5 Conventions
6 Overview
7 Dual-homing protection architecture
     7.1 One-side dual-homing
     7.2 Two-side dual-homing
8 Protection signalling
9 Functional model
10 Hold-off timer
11 Wait-to-restore timer
12 Protection procedures
13 External commands
14 Failure detection
Annex A  Forwarding state tables of protection switching
Appendix I  One-side and two-side dual-homing protection examples
     I.1 One-side dual-homing
     I.2 Two-side dual-homing
Appendix II  Network objectives