Enables Bidirectional Forwarding Detection (BFD) on a specific Intermediate System to Intermediate System (IS-IS) interface.
Interface subtype configuration mode
IS-IS is supported only on devices based on the DNX chipset family. For a list of such devices, see "Supported Hardware".
BFD sessions are initiated only if BFD is also enabled globally using the bfd command in IS-IS router configuration mode. If BFD is disabled using the no bfd command in IS-IS router configuration mode, BFD sessions on specific IS-IS interfaces are deregistered.
The no form of the command removes all BFD sessions from a specified interface.
The following example enables BFD on an IS-IS Ethernet interface.
device# configure terminal device(config)# interface ethernet 1/4 device(conf-if-eth-1/4)# isis bfd
The following example disables BFD on an IS-IS virtual Ethernet (VE) interface.
device# configure terminal device(config)# interface ve 24 device(config-if-ve-24)# no isis bfd