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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
DETAILED STEPS
Command
Step 1
configure terminal
Example:
switch# configure terminal
switch(config)#
Step 1
hsrp bfd all-interfaces
Example:
switch# hsrp bfd all-interfaces
Step 2
interface int-if
Example:
switch(config)# interface ethernet 2/1
switch(config-if)#
Step 3
hsrp bfd
Example:
switch(config-if)# hsrp bfd
Step 4
show running-config hsrp
Example:
switch(config-if)# show running-config
hsrp
Step 5
copy running-config startup-config
Example:
switch(config-if)# copy running-config
startup-config
Configuring BFD on VRRP
You can configure BFD for the Virtual Router Redundancy Protocol (VRRP). The active and standby
VRRP routers track each other through BFD. If BFD on the standby VRRP router detects that the active
VRRP router is down, the standby VRRP router treats this event as an active time rexpiry and takes over
as the active VRRP router.
The show vrrp detail will show this event as BFD@Act-down or BFD@Sby-down.
BEFORE YOU BEGIN
Ensure that you are in the correct VDC (or use the switchto vdc command).
Enable the BFD feature. See the
Configure the BFD session parameters. See the
page 5-8
Enable the VRRP feature. See the Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration
Guide, Release 5.x, for more information.
SUMMARY STEPS
1.
OL-23435-03
or the
"Configuring BFD on an Interface" section on page
configure terminal
Purpose
Enters configuration mode.
(Optional) Enables or disables BFD on all HSRP
interfaces. The default is disabled.
Enters interface configuration mode. Use the ?
keyword to display the supported interfaces.
(Optional) Enables or disables BFD on an HSRP
interface. The default is disabled.
(Optional) Displays the HSRP running configuration.
(Optional) Saves this configuration change.
"Enabling the BFD Feature" section on page
"Configuring Global BFD Parameters" section on
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
Configuring BFD
5-7.
5-9.
5-21
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