MPLS LSP PW status refresh reduction for Static Pseudowires

The information below is for an old version of the document
Document Type Expired Internet-Draft (pwe3 WG)
Last updated 2012-03-26 (latest revision 2011-09-14)
Replaced by rfc8237, draft-ietf-pals-status-reduction
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a method for generating an aggregated pseudowire status message on Multi-Protocol Label Switching (MPLS) network Label Switched Path (LSP). The method for transmitting the pseudowire (PW) status information is not new, however this protocol extension allows a Service Provider (SP) to reliably monitor the individual PW status while not overwhelming the network of multiple periodic status messages. This is achieved by sending a single cumulative summary status verification message for all the PWs grouped in the same LSP.


Luca Martini (
George Swallow (
Elisa Bellagamba (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)