Enabling BFD for PIM
If the DR on a shared-media network fails, a new DR election process will start after the DR ages out. However, it might take a long period of time before other routers detect the link failures and trigger a new DR election. To start a new DR election process immediately after the original DR fails, enable BFD for PIM on a shared-media network to detect link failures among PIM neighbors.
You must enable BFD for PIM on all PIM-capable routers on a shared-media network. For more information about BFD, see High Availability Configuration Guide.
You must enable PIM-DM or PIM-SM on an interface before you configure this feature.
To enable BFD for PIM:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Enable BFD for PIM. | pim bfd enable | By default, BFD is disabled for PIM. |