Configuration Hierarchy; Task Flow For Configuring Bfd; Enabling The Bfd Feature - 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

Configuration Hierarchy

Note
Using BFD per-link mode and sub-interface optimization simultaneously on a Layer 3 port channel is
Note
not supported.
For physical ports that are members of a port channel, the member port inherits the master port channel
BFD configuration. The member port subinterfaces can override the master port channel BFD
configuration, unless subinterface optimization is enabled.

Task Flow for Configuring BFD

Follow these steps to configure BFD:
Enabling the BFD
Step 1
Configuring Global BFD Parameters
Step 2
Configuring BFD Support for Routing
Step 3

Enabling the BFD Feature

You must enable the BFD feature before you can configure BFD on an interface and protocol within a
device (VDC).
BEFORE YOU BEGIN
Ensure that you are in the correct VDC (or use the switchto vdc command).
SUMMARY STEPS
1.
2.
3.
4.
OL-23435-03
You can configure BFD at the global level, VRF level, at the interface or port channel level, or
at the subinterface level (for physical interfaces and port channels). The VRF configuration
overrides global configuration. The interface or port channel configuration overrides VRF or
global configuration. On supported interfaces, the subinterface-level configuration overrides the
interface or port channel configuration unless subinterface optimization is enabled. See the
"Optimizing BFD on Subinterfaces" section on page 5-13
Feature.
configure terminal
feature bfd
(Optional) show feature | include bfd
(Optional) copy running-config startup-config
or Configuring BFD on an
Protocols.
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
Configuring BFD
for more information.
Interface.
5-7