Single-hop echo mode

With BFD echo mode enabled for a static route, the output interface sends BFD echo packets to the destination device, which loops the packets back to test the link reachability.


[IMPORTANT: ]

IMPORTANT:

Do not use BFD for a static route with the output interface in spoofing state.


To configure BFD echo mode for an IPv6 static route:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Configure the source address of echo packets.

bfd echo-source-ipv6 ipv6-address

By default, the source address of echo packets is not configured.

The source address of echo packets must be a global unicast address.

For more information about this command, see High Availability Command Reference.

3. Configure BFD echo mode for an IPv6 static route.

ipv6 route-static ipv6-address prefix-length interface-type interface-number next-hop-address bfd echo-packet [ bfd-source ipv6-address ] [ preference preference ] [ tag tag-value ] [ description text ]

By default, BFD echo mode for an IPv6 static route is not configured.

The next hop IPv6 address must be a global unicast address.