Vyatta NOS documentation

Learn how to install, configure, and operate Vyatta Network Operating System (Vyatta NOS), which helps to drive our virtual networking and physical platforms portfolio.

MPLS fast reroute using one-to-one backup

MPLS Fast Reroute provides the ability for an LSP to route traffic around a failed node by using a detour route as described in RFC 4090. By using the one-to-one backup method, each LSR except the egress router is identified as a Point of Local Repair (PLR). Each PLR tries to initiate a detour LSP to provide a backup route for the protected path. This detour LSP is used to reroute traffic locally on the detour path in the event of a failure on the protected path. The detour path is computed to exclude the protected link or protected node.