Configuring Bfd On An Interface - Cisco 7604-RSP720C-R Configuration Manual

Chapter 5 Configuring Bidirectional Forwarding Detection
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
5.
DETAILED STEPS
Command
Step 1
configure terminal
Example:
switch# configure terminal
switch(config)#
Step 2
bfd interval mintx min_rx msec
multiplier value
Example:
switch(config)# bfd interval 50 min_rx
50 multiplier 3
Step 3
bfd slow-timer [interval]
Example:
switch(config)# bfd slow-timer 2000.
Step 4
show running-config bfd
Example:
switch(config)# show running-config bfd
Step 5
copy running-config startup-config
Example:
switch(config)# copy running-config
startup-config

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
OL-23435-03
(Optional) copy running-config startup-config
Purpose
Enters configuration mode.
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 50 to 999
milliseconds and the default is 50. The multiplier range
is from 1 to 50. The multiplier default is 3.
Configures the slow timer used in the echo function.
This value determines how fast BFD starts up a new
sessions and at what speed the asynchrounous sessions
use for BFD control packets when the echo function is
enabled. The slow-timer value is used as the new
control packet interval, while the echo packets use the
configured BFD intervals. The echo packets are used
for link failure detection, while the control packets at
the slower rate maintain the BFD session. The range
is from 1000 to 30000 milliseconds. The default is
2000.
(Optional) Displays the BFD running configuration.
(Optional) Saves this configuration change.
"Enabling the BFD Feature" section on page
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
Configuring BFD
5-7.
5-9