Cisco 7206 - VXR Router User Manual

Send document comments to nexus7k-docfeedback@cisco.com
5-9
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
OL-23435-03
Chapter 5 Configuring Bidirectional Forwarding Detection
Configuring BFD
5. (Optional) copy running-config startup-config
DETAILED STEPS
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 5-7.
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 50 min_rx
50 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 50 to 999
milliseconds and the default is 50. The multiplier range
is from 1 to 50. The multiplier default is 3.
Step 3
bfd slow-timer [interval]
Example:
switch(config)# bfd slow-timer 2000.
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.
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.

Cisco 7206 - VXR Router Specifications

General

Brand	Cisco
Model	7206 - VXR Router
Category	Network Router
Language	English