UpdatedPROPOSED STANDARDIETF stream

RFC 6870: Pseudowire Preferential Forwarding Status Bit

Still current, but amended. Parts of this document are changed or extended by RFC 7771. Read both.

In plain English — editorial summary, not part of the RFC

This document describes a mechanism for signaling the active and standby status of redundant Pseudowires (PWs) between their termination points. A set of Redundant PWs is configured between Provider Edge (PE) nodes in single-segment pseudowire (SS-PW) applications or between Terminating Provider Edge (T-PE) nodes in Multi-Segment Pseudowire (MS-PW) applications. In order for the PE/T-PE nodes to indicate the preferred PW to use for forwarding PW packets to one another, a new status bit is defined. This bit indicates a Preferential Forwarding status with a value of active or standby for each PW in a redundant set. In addition, a second status bit is defined to allow peer PE nodes to coordinate a switchover operation of the PW. Finally, this document updates RFC 4447 by adding details to the handling of the PW status code bits in the PW Status TLV.

Document record

Document ID
RFC6870
Published
February 2013
Authors
P. Muley; M. Aissaoui
Status
PROPOSED STANDARD
Stream
IETF
Area
rtg
Pages
35
Also known as
Updates:
RFC 4447
Updated by:
RFC 7771

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