RFC 8104: Pseudowire (PW) Endpoint Fast Failure Protection
In plain English — editorial summary, not part of the RFC
This document specifies a fast mechanism for protecting pseudowires (PWs) transported by IP/MPLS tunnels against egress endpoint failures, including egress attachment circuit (AC) failure, egress provider edge (PE) failure, multi-segment PW terminating PE failure, and multi-segment PW switching PE failure. Operating on the basis of multihomed customer edge (CE), redundant PWs, upstream label assignment, and context-specific label switching, the mechanism enables local repair to be performed by the router upstream adjacent to a failure. The router can restore a PW in the order of tens of milliseconds, by rerouting traffic around the failure to a protector through a pre-established bypass tunnel. Therefore, the mechanism can be used to reduce traffic loss before global repair reacts to the failure and the network converges on the topology changes due to the failure.
Document record
- Document ID
- RFC8104
- Published
- March 2017
- Authors
- Y. Shen; R. Aggarwal; W. Henderickx; Y. Jiang
- Status
- PROPOSED STANDARD
- Stream
- IETF
- Area
- rtg
- Pages
- 43
- Also known as
- —
Topics
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
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- RFC 7026Retiring TLVs from the Associated Channel Header of the MPLS Generic Associated ChannelCurrent
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- RFC 9855Topology Independent Fast Reroute Using Segment RoutingCurrent
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- RFC 4717Encapsulation Methods for Transport of Asynchronous Transfer Mode (ATM) over MPLS NetworksCurrent
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- RFC 4619Encapsulation Methods for Transport of Frame Relay over Multiprotocol Label Switching (MPLS) NetworksCurrent
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- RFC 4618Encapsulation Methods for Transport of PPP/High-Level Data Link Control (HDLC) over MPLS NetworksCurrent
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- RFC 4448Encapsulation Methods for Transport of Ethernet over MPLS NetworksUpdated
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
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