Cisco ASR 9000 Series Configuration Guide

RP/0/RSP0/CPU0:routerr(config-bfd)#echo disable
The following example shows how to disable echo mode on an interface:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#interface gigabitethernet 0/1/0/0
RP/0/RSP0/CPU0:router(config-bfd-if)#echo disable
BFD Dampening: Examples
The following example shows how to configure an initial and maximum delay for BFD session startup on
BFD bundle members:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#dampening bundle-member initial-wait 8000
RP/0/RSP0/CPU0:router(config-bfd)#dampening bundle-member maximum-wait 15000
The following example shows how to change the default initial-wait for BFD on a non-bundle interface:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#dampening initial-wait 30000
RP/0/RSP0/CPU0:router(config-bfd)#dampening maximum-wait 35000
BFD IPv6 Checksum: Examples
The following example shows how to disable IPv6 checksum calculations for UDP packets for all BFD
sessions on the router:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#ipv6 checksum disable
The following example shows how to reenable IPv6 checksum calculations for UDP packets for all BFD
sessions on the router:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#no ipv6 checksum disable
The following example shows how to enable echo mode for BFD sessions on an individual interface:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#interface gigabitethernet 0/1/0/0
RP/0/RSP0/CPU0:router(config-bfd-if)#ipv6 checksum
The following example shows how to disable echo mode for BFD sessions on an individual interface:
RP/0/RSP0/CPU0:router#configure
RP/0/RSP0/CPU0:router(config)#bfd
RP/0/RSP0/CPU0:router(config-bfd)#interface gigabitethernet 0/1/0/0
RP/0/RSP0/CPU0:router(config-bfd-if)#ipv6 checksum disable
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
234 OL-30423-03
Implementing BFD
BFD Dampening: Examples

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model