Enabling BFD for IPv6 PIM

If a 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 devices detect the link failures and trigger a new DR election. To start a new DR election process immediately after the original DR fails, you can enable BFD for IPv6 PIM to detect link failures among IPv6 PIM neighbors.

You must enable BFD for IPv6 PIM on all IPv6 PIM devices on a shared-media network. For more information about BFD, see High Availability Configuration Guide.

You must enable IPv6 PIM-DM or IPv6 PIM-SM on an interface before you configure this feature on the interface.

1. Enter system view.

   system-view

2. Enter interface view.

   interface interface-type interface-number

3. Enable BFD for IPv6 PIM.

   ipv6 pim bfd enable

   By default, BFD is disabled for IPv6 PIM.