Bidirectional control mode

To use BFD bidirectional control detection between two devices, enable BFD control mode for each device's static route destined to the peer.

To configure a static route and enable BFD control mode, use one of the following methods:

Specify an output interface and a direct next hop.
Specify an indirect next hop and a specific BFD packet source address for the static route.

To configure BFD control mode for an IPv6 static route (direct next hop):

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Configure BFD control mode for an IPv6 static route.	Method 1:ipv6 route-static ipv6-address prefix-length interface-type interface-number next-hop-address bfd control-packet [ preference preference-value ] [ tag tag-value ] [ description description-text ] Method 2:ipv6 route-static vpn-instance s-vpn-instance-name ipv6-address prefix-length interface-type interface-number next-hop-address bfd control-packet [ preference preference-value ] [ tag tag-value ] [ description description-text ]	By default, BFD control mode for an IPv6 static route is not configured.

To configure BFD control mode for an IPv6 static route (indirect next hop):

Step	Command	Remarks
1. Enter system view.	system-view	N/A
2. Configure BFD control mode for an IPv6 static route.	Method 1:ipv6 route-static ipv6-address prefix-length { next-hop-address bfd control-packet bfd-source ipv6-address \| vpn-instance d-vpn-instance-name next-hop-address bfd control-packet bfd-source ipv6-address } [ preference preference-value ] [ tag tag-value ] [ description description-text ] Method 2:ipv6 route-static vpn-instance s-vpn-instance-name ipv6-address prefix-length { next-hop-address bfd control-packet bfd-source ipv6-address \| vpn-instance d-vpn-instance-name next-hop-address bfd control-packet bfd-source ipv6-address } [ preference preference-value ] [ tag tag-value ] [ description description-text ]	By default, BFD control mode for an IPv6 static route is not configured.

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Configuring BFD for IPv6 static routes	home	Single-hop echo mode