Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

Configuring MPLS fast reroute using one-to-one backup

To enable FRR with one-to-one backup, complete the following steps:

  1. Configure fast-reroute on the primary session for a tunnel named "sf_to_sj":
    vyatta@vm1# set protocols mpls-rsvp tunnels tunnel sf_to_sj primary fast-reroute 
  2. In order to use RSVP hello messages to detect link failures and trigger a switch over to the backup session, configure the neighbors to exchange hello messages and enable hello message receipt on the interfaces:
    vyatta@vm1# set protocols mpls-rsvp neighbors neighbor 10.10.100.2
    vyatta@vm1# set protocols mpls-rsvp interfaces interface dp0p1s1 signaling hello receipt 
    

Optionally, you can configure the hello transmission interval and timeout (signaling hello interval | timeout).

vyatta@vm1# set protocols mpls-rsvp interfaces interface dp0p1s1 signaling hello interval 100

vyatta@vm1# set protocols mpls-rsvp interfaces interface dp0p1s1 signaling hello timeout 300