Cisco NCS 6000 Series User Manual

The following example shows how to enable echo latency detection using the default values of 100% of the
echo failure period (I x M) for a packet count of 1. In this example, when one echo packet is detected with a
roundtrip delay greater than 150 ms, the session is taken down:
RP/0/RP0/CPU0:router#configure
RP/0/RP0/CPU0:router(config)#bfd
RP/0/RP0/CPU0:router(config-bfd)#echo latency detect
The following example shows how to enable echo latency detection based on 200% (two times) of the echo
failure period for a packet count of 1. In this example, when one packet is detected with a roundtrip delay
greater than 300 ms, the session is taken down:
RP/0/RP0/CPU0:router#configure
RP/0/RP0/CPU0:router(config)#bfd
RP/0/RP0/CPU0:router(config-bfd)#echo latency detect percentage 200
The following example shows how to enable echo latency detection based on 100% of the echo failure period
for a packet count of 3. In this example, when three consecutive echo packets are detected with a roundtrip
delay greater than 150 ms, the session is taken down:
RP/0/RP0/CPU0:router#configure
RP/0/RP0/CPU0:router(config)#bfd
RP/0/RP0/CPU0:router(config-bfd)#echo latency detect percentage 100 count 3
Echo Startup Validation: Examples
The following example shows how to enable echo startup validation for BFD sessions on non-bundle interfaces
if the last received control packet contains a non-zero “Required Min Echo RX Interval” value:
RP/0/RP0/CPU0:router#configure
RP/0/RP0/CPU0:router(config)#bfd
RP/0/RP0/CPU0:router(config-bfd)#echo startup validate
The following example shows how to enable echo startup validation for BFD sessions on non-bundle interfaces
regardless of the “Required Min Echo RX Interval” value in the last control packet:
RP/0/RP0/CPU0:router#configure
RP/0/RP0/CPU0:router(config)#bfd
RP/0/RP0/CPU0:router(config-bfd)#echo startup validate force
BFD Echo Mode Disable: Examples
The following example shows how to disable echo mode on a router:
RP/0/RP0/CPU0:router#configure
RP/0/RP0/CPU0:router(config)#bfd
RP/0/RP0/CPU0:routerr(config-bfd)#echo disable
The following example shows how to disable echo mode on an interface:
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
173
Implementing BFD
Echo Startup Validation: Examples

Cisco NCS 6000 Series Specifications

General

Brand	Cisco
Model	NCS 6000 Series
Category	Network Router
Language	English