Administrator Guide

Version
8.3.19.0
Introduced on the S4820T.
Version
8.3.10.0
Introduced on the S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the C-Series.
Version 7.5.1.0 Added support for VLAN and port-channel interfaces on the
E-Series.
Version 7.4.1.0 Introduced on the E-Series.
Related
Commands
show bfd neighbors — displays the BFD neighbor information on all interfaces or a
specified interface.
bfd protocol-liveness
Enable the BFD protocol liveness feature.
Z9000
Syntax
bfd protocol-liveness
Defaults Disabled
Command
Modes
CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.0.0.0 Introduced on the Z9000.
Version
8.3.19.0
Introduced on the S4820T.
Version
8.3.10.0
Introduced on the S4810.
Version 7.4.1.0 Introduced on the E-Series.
Usage
Information
Protocol Liveness is a feature that notifies the BFD Manager when a client protocol
(for example, OSPF and 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.
334
Bidirectional Forwarding Detection (BFD)