(Optional) Modifying BFD Parameters

Procedure

1. Run system-view

   The system view is displayed.

2. Run bfd

   The BFD view is displayed.

3. Run mpls ping interval interval

   The interval at which LSP Ping packets are sent is changed.

4. Run quit

   Exit from the BFD view.

5. Run mpls

   The MPLS view is displayed.

6. (Optional) Run mpls bfd { min-tx-interval min-tx-interval-value | min-rx-interval min-rx-interval-value | detect-multiplier detect-multiplier-value }*

   BFD parameters are set.

   BFD detection intervals are calculated as follows:

   • Effective local interval at which BFD packets are sent = MAX { Configured local interval at which BFD packets are sent, Configured remote interval at which BFD packets are received }
   • Effective local interval at which BFD packets are received = MAX { Configured remote interval at which BFD packets are sent, Configured local interval at which BFD packets are received }
   • Effective local detection interval = Effective local interval at which BFD packets are received x Configured remote detection multiplier

   Therefore, you can adjust the minimum interval at which BFD packets are sent, the minimum interval at which BFD packets are received, and the detection multiplier only on the ingress to update BFD detection time on the ingress and egress.

7. (Optional) Run mpls bfd-tunnel { min-tx-interval min-tx-interval-value | min-rx-interval min-rx-interval-value | detect-multiplier detect-multiplier-value }*

   BFD parameters are set.

   Effective local interval at which BFD packets are sent = MAX { Locally configured interval at which BFD packets are sent, Remotely configured interval at which BFD packets are received }

   Effective local interval at which BFD packets are received = MAX { Remotely configured interval at which BFD packets are sent, Locally configured interval at which BFD packets are received }

   Local BFD detection period = Effective local interval at which BFD packets are received x Remotely configured BFD detection multiplier

   If both the mpls bfd-tunnel and mpls bfd commands are run, parameters configured using the mpls bfd-tunnel command take precedence.

8. Run commit

   The configuration is committed.