A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Pseudowire Emulation Edge to Edge Working Group of the IETF.
Title : Preferential Forwarding Status bit definition
Author(s) : P. Muley, et al.
Filename : draft-ietf-pwe3-redundancy-bit-01.txt
Pages : 29
Date : 2008-09-30
This document describes a mechanism for standby status signaling of
redundant PWs between their termination points. A set of redundant
PWs is configured between PE nodes in SS-PW applications, or between
T-PE nodes in MS-PW applications.
In order for the PE/T-PE nodes to indicate the preferred PW path to
forward to one another, a new status bit is needed to indicate a
preferential forwarding status of active or standby for each PW in
the redundancy set.
In addition, a second status bit is defined to allow peer PE/T-PE
nodes to coordinate a switchover operation of the PW/MS-PW path.
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC-2119 [1].
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