Name: draft-rosen-l2vpn-mesh-failure-02
Title: Detecting and Reacting to Failures of the Full Mesh in IPLS and VPLS
State: Active
Authors: Eric Rosen
Group: Individual Submissions (none)
Date: 2004-09-30
Certain L2VPN architectures [IPLS, VPLS] rely on there being a full mesh of
pseudowires [PWE3-ARCH] among a set of entities. This mesh is used to
provide a 'LAN-like' service among the entities. If one or more of these
pseudowires is absent, so that there is not really a full mesh, various
higher layers (from routing to bridge control protocols) that expect a
LAN-like service may fail to work as expected. Therefore it is desirable to
have procedures that enable the pseudowire endpoints to determine
automatically whether there is really a full mesh or not. It is also
desirable to have procedures that cause the L2VPNs to adapt to pseudowire
failures. This document proposes a set of procedures to meet these goals.
Detailed protocol encodings are not present, but will be added in future
versions.
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