Reference Guide
292 | Bidirectional Forwarding Detection (BFD)
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Related
Commands
bfd protocol-liveness 
e
Enable the BFD protocol liveness feature.
Syntax bfd protocol-liveness
Defaults
Disabled
Command Modes
CONFIGURATION
Command
History
Usage
Information
Protocol Liveness is a feature that notifies the BFD Manager when a client protocol 
(e.g OSPF, ISIS) is disabled. When a client is disabled, all BFD sessions for that 
protocol are torn down. Neighbors on the remote system receive an Admin Down 
control packet and are placed in the Down state. Peer routers might take corrective 
action by choosing alternative paths for the routes that originally pointed to this 
router.
clear bfd counters 
c e
Clear all BFD counters, or counters for a particular interface.
Syntax
clear bfd counters 
[interface]
Version 7.5.1.0 Added support for VLAN and port-channel interfaces on E-Series.
Version 7.4.1.0 Introduced on E-Series
show bfd neighbors Display BFD neighbor information on all interfaces or a specified 
interface.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.10.0 Introduced on S4810
Version 7.4.1.0 Introduced on E-Series










