Cisco ASR 9000 Series Routing Configuration Guide

Specifying the Echo Packet Source Address on an Individual Interface or Bundle
To specify the echo packet source IP address on an individual BFD interface or bundle, complete the following
steps:
SUMMARY STEPS
1.
configure
2.
bfd
3.
interface type interface-path-id
4.
echo ipv4 source ip-address
5.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enters BFD configuration mode.bfd
Example:
RP/0/RSP0/CPU0:router(config)# bfd
Step 2
Enters BFD interface configuration mode for a specific
interface or bundle. In BFD interface configuration mode, you
interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-bfd)# interface
gigabitEthernet 0/1/5/0
Step 3
can specify an IPv4 address on an individual interface or
bundle.
Specifies an IPv4 address to be used as the source address in
BFD echo packets, where ip-address is the 32-bit IP address
in dotted-decimal format (A.B.C.D).
echo ipv4 source ip-address
Example:
RP/0/RSP0/CPU0:router(config-bfd)# echo ipv4
source 10.10.10.1
Step 4
commit
Step 5
Configuring BFD Session Teardown Based on Echo Latency Detection
Beginning in Cisco IOS XR 4.0.1, you can configure BFD sessions on non-bundle interfaces to bring down
a BFD session when it exceeds the configured echo latency tolerance.
To configure BFD session teardown using echo latency detection, complete the following steps.
Before you enable echo latency detection, be sure that your BFD configuration supports echo mode.
Echo latency detection is not supported on bundle interfaces.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
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Implementing BFD
Configuring BFD Session Teardown Based on Echo Latency Detection

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English