A Method for MPLS LSP Fast-Reroute Using RSVP Detours

Document Type Expired Internet-Draft (individual)
Authors Der-Hwa Gan  , Ping Pan  , Arthi Ayyangar  , Kireeti Kompella 
Last updated 2001-04-11
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


In this document, we introduce a method to establish backup LSP tunnels in large-scale networks. Two additional RSVP objects are proposed. These objects together make possible for routers using RSVP to create detours that can route around downstream links and nodes. As a result, an LSP can quickly and automatically repair itself, while redirecting the user traffic to the pre-computed and pre- established detour routes in event of network link and node failures. Packet loss is therefore minimized.


Der-Hwa Gan (dhg@3com.com)
Ping Pan (pan@watson.ibm.com)
Arthi Ayyangar (arthi@juniper.net)
Kireeti Kompella (kireeti@juniper.net)

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