Administrator Guide

Example
DellEMC(conf-if-gi-1/3)# bfd interval 250 min_rx 300 multiplier 4 role
passive
DellEMC(conf-if-gi-1/3)#
bfd protocol-liveness
Enable the BFD protocol liveness feature.
Syntax
bfd protocol-liveness
Defaults Disabled
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
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. Peer routers might take
corrective action by choosing alternative paths for the routes that originally pointed to this router.
ip route bfd
Enable BFD for all neighbors configured through static routes.
Syntax
ip route bfd [prefix-list prefix-list-name] [interval interval min_rx min_rx
multiplier value role {active | passive}]
To disable BFD for all neighbors configured through static routes, use the no ip route bfd [vrf vrf-
name] [prefix-list prefix-list-name] [interval interval min_rx min_rx
multiplier value role {active | passive}] command.
Parameters
prefix-list prefix-
list-name
(Optional) Enter the keyword prefix-list followed by the name of the prefix list to
enable or disable BFD on specific neighbors.
interval
milliseconds
(OPTIONAL) Enter the keywords interval to specify non-default BFD session
parameters beginning with the transmission interval. The range is from 50 to 1000. The
default is 200.
min_rx
milliseconds
Enter the keywords min_rx to specify the minimum rate at which the local system
receives control packets from the remote system. The range is from 50 to 1000. The
default is 200.
Bidirectional Forwarding Detection (BFD) 317