Enable BFD at the OSPF Application Level

BFD for IPv6 interfaces is a demonstration feature on some products. For more information about feature support, see Fabric Engine Feature Support Matrix.

About this task

BFD supports Open Shortest Path First (OSPF) for IPv4 interfaces and OSPFv3 for IPv6 interfaces.

Use the following procedure to enable BFD at the OSPF application level.

Note

Enabling BFD at the OSPF application level does not establish a BFD session. To establish a BFD session, you must enable BFD globally and at the interface level.

Procedure

Enter Interface Configuration mode:

enable

configure terminal

interface GigabitEthernet {slot/port[/sub-port][-slot/port[/sub-port]][,...]} or interface vlan <1–4059>

Note

If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.
Optional: Enable BFD on an IPv4 interface under the OSPF protocol:

ip ospf bfd
Enable BFD on an IPv6 interface under the OSPF protocol:

ipv6 ospf bfd

Example

Switch:1>enable
Switch:1#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch:1(config)#interface gigabitethernet 1/3
Switch:1(config-if)#ip ospf bfd

Variable Definitions

The following table defines parameters for the ip ospf bfd command.


Variable	Value
{slot/port[/sub-port][-slot/port[/sub-port]][,...]}	Identifies the slot and port in one of the following formats: a single slot and port (slot/port), a range of slots and ports (slot/port-slot/port), or a series of slots and ports (slot/port,slot/port,slot/port). If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.
`<1-4059>`	Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1.