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.

Path selection metric for CSPF computation

The IGP floods two metrics for every link when the MPLS traffic engineering (TE) is configured in a network. The two metrics are the OSPF link metric and a TE link metric.

The path calculation metric implementation allows you to specify the path calculation for a given tunnel based on either of the following requirements:
  • The interior gateway protocol (IGP) link metric for path calculation

  • The traffic engineering (TE) link metric for path calculation

The IGP link metric is the default, but you can configure a TE-specific metric on an interface that is used instead for CSPF path computations.