Specifications

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Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, Release 5.0(3)U2(2)
OL-25782-02
Chapter 7 Configuring Bidirectional Forwarding Detection for BGP
Configuring BFD
Configuring BFD on an Interface
You can configure the BFD session parameters for all BFD sessions on an interface. The BFD session
parameters are negotiated between the BFD peers in a three-way handshake.
This configuration overrides the global session parameters for the configured interface.
BEFORE YOU BEGIN
Ensure that you are in the correct VDC (or use the switchto vdc command).
Enable the BFD feature. See the “Enabling the BFD Feature” section on page 7-6.
SUMMARY STEPS
1. configure terminal
2. interface int-if
3. bfd interval mintx min_rx msec multiplier value
4. (Optional) show running-config bfd
5. (Optional) copy running-config startup-config
DETAILED STEPS
Command Purpose
Step 1
configure terminal
Example:
switch# configure terminal
switch(config)#
Enters configuration mode.
Step 2
interface int-if
Example:
switch(config)# interface ethernet 2/1
switch(config-if)#
Enters interface configuration mode. Use the ?
keyword to display the supported interfaces.
Step 3
bfd interval mintx min_rx msec
multiplier value
Example:
switch(config-if)# bfd interval 250
min_rx 250 multiplier 3
Configures the BFD session parameters for all BFD
sessions on the interface. This overrides the global
BFD session parameters. The mintx and msec range is
from 250 to 999 milliseconds and the default is 250.
The multiplier range is from 3 to 50. The multiplier
default is 3.
To return to the default settings, use the
no bfd
interval
command.
Step 4
show running-config bfd
Example:
switch(config-if)# show running-config
bfd
(Optional) Displays the BFD running configuration.
Step 5
copy running-config startup-config
Example:
switch(config-if)# copy running-config
startup-config
(Optional) Saves this configuration change.