Users Guide

The default is Active.
Defaults Refer to Parameters.
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, see 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 Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.10.0 Introduced on the S4810.
8.2.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the C-Series.
7.4.1.0 Introduced on the E-Series.
Example
Dell(conf-if-te-0/3)# bfd interval 250 min_rx 300 multiplier 4 role
passive
Dell(conf-if-te-0/3)#
bfd protocol-liveness
Enable the BFD protocol liveness feature.
C9000 Series
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 Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
9.0.0.0 Introduced on the Z9000.
8.3.19.0 Introduced on the S4820T.
8.3.10.0 Introduced on the S4810.
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.
Bidirectional Forwarding Detection (BFD) 305