IP Fast Reroute using tunnels

摘要: This draft describes an IP fast re-route mechanism that provides backup connectivity in the event of a link or router failure. In the absence single points failure and asymmetric costs, the mechanism provides complete protection against any If perfect repair is not possible, identity all unprotected links routers known advance. Fast Reroute advanced method was invented 2002 (draft-bryant-ipfrr- tunnels-00.txt) describing it submitted to IETF May 2004. It one first methods achieving full coverage in an Network, as such has been widely referenced the academic literature. The authors DO NOT propose this IPFRR method be implemented since better IPFRR advanced method capable of achieving have subsequently invented.