The IESG has received a request from the Pseudowire And LDP-enabled Services WG (pals) to consider the following document: - 'PW Endpoint Fast Failure Protection' <draft-ietf-pals-endpoint-fast-protection-04.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2016-12-06. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document specifies a fast mechanism for protecting pseudowires against egress endpoint failures, including egress attachment circuit failure, egress PE failure, multi-segment PW terminating PE failure, and multi-segment PW switching PE failure. Operating on the basis of multi-homed 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. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-pals-endpoint-fast-protection/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-pals-endpoint-fast-protection/ballot/ The following IPR Declarations may be related to this I-D: https://datatracker.ietf.org/ipr/2825/ https://datatracker.ietf.org/ipr/2243/ https://datatracker.ietf.org/ipr/2805/ https://datatracker.ietf.org/ipr/2262/
