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
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. bfd interval mintx min_rx msec multiplier value
3. bfd slow-timer [interval]
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
bfd interval mintx min_rx msec
multiplier value
Example:
switch(config)# bfd interval 250 min_rx
250 multiplier 3
Configures the BFD session parameters for all BFD
sessions on the device. You can override these values
by configuring the BFD session parameters on an
interface. The mintx and msec range is from 250 to 999
milliseconds and the default is 250. The multiplier
range is from 3to 50. The multiplier default is 3.
To return to the default settings, use the
no bfd
interval
command.
Step 3
bfd slow-timer [interval]
Example:
switch(config)# bfd slow-timer 2000.
Configures the slow timer. This value determines how
fast BFD starts up a new session and is used to slow
down the asynchrounous sessions when the BFD echo
function is enabled. The range is from 1000 to 30000
milliseconds. The default is 2000.
To return to the default settings, use the
no bfd
slow-timer
command.
Step 4
show running-config bfd
Example:
switch(config)# show running-config bfd
(Optional) Displays the BFD running configuration.
Step 5
copy running-config startup-config
Example:
switch(config)# copy running-config
startup-config
(Optional) Saves this configuration change.