802.1Qbf - Provider Backbone Bridge Traffic Engineering (PBB-TE) Infrastructure Segment Protection
The full title of this PAR is "IEEE Standard for Local and Metropolitan Area Networks---Virtual Bridged Local Area Networks - Amendment: Provider Backbone Bridge Traffic Engineering (PBB-TE) Infrastructure Segment Protection".
This standard specifies procedures and managed objects to provide 1:1 (M:1 if practical) protection switching, without modifying data or control frames and using connectivity fault management (CFM), for a group of Traffic Engineered Service Instances (TESIs) that traverses a sequence of local area networks (LANs) and intervening bridges. Operator requests and operational modes consistent with those supported by PBB-TE TESI Protection are specified.
This standard allows service providers to:
- Address the relatively high failure rate of particular links or bridges within a network.
- Address the likelihood of concurrent failures occurring in different segments of a network.
- Allow maintenance activities to be performed independently in different segments of the network.
- Allow maintenance activities to be performed in one segment of a network without disabling protection in another segment.
- Localize changes in traffic distribution due to failure or maintenance actions.
It is anticipated that Traffic Engineered bridged networks will be widely deployed when the PBB-TE (IEEE Std. 802.1Qay) standard becomes available. Currently, only a hierarchy of end-to-end 1:1 TESI protection is specified. Localized infrastructure protection is supported by TDM based and MPLS-based networks. A simple localized protection capability would strengthen the applicability of PBB-TE networks.
| PAR | PAR approved Sep 11th, 2009 |
| Status | Standard approved Dec 7th, 2011. Published Dec 23rd, 2011. Available from IEEE Standards Store. |
| Editor | Bob Sultan |
| Date | Document |
|---|---|
| 18 Sep 2011 | Presentation bf-sultan-ballot-summary-0911-v01.pdf |
Pages copyright © Institute of Electrical and Electronics Engineers, Inc. Please read the rules on Confidentiality Statements and Copyright Notices on Communications. Information on Privacy and opting out of cookies is available. If you have any comments on these pages, please send them to me.
