Cisco ASR 9000 Series Routing Configuration Guide

Sessions supported on
Network Processing Unit
Sessions supported on
Line Card
Timer IntervalBFD Session
1000200015 millisecondsIPv4, IPv6
3000800050 millisecondsIPv4, IPv6
30008000300 millisecondsIPv4, IPv6
300080001 secondIPv4, IPv6
300080002 secondsIPv4, IPv6
3000800030 secondsIPv4, IPv6
Restrictions
•
Echo mode is not supported for hardware offloaded sessions.
•
Only seven timer intervals for BFD sessions are supported.
BFD Object Tracking
Object Tracking is enhanced to support BFD to track the reachability of remote IP addresses.This will enable
complete detection and HSRP switch over to happen within a time of less than one second as BFD can perform
the detection in the order of few milliseconds
How to Configure BFD
BFD Configuration Guidelines
Before you configure BFD, consider the following guidelines:
•
FRR/TE, FRR/IP, and FRR/LDP using BFD is supported on POS interfaces and Ethernet interfaces.
•
To establish a BFD neighbor in Cisco IOS XR software, BFD must either be configured under a dynamic
routing protocol, or using a static route.
•
The maximum rate in packets-per-second (pps) for BFD sessions is linecard-dependent. If you have
multiple linecards supporting BFD, then the maximum rate for BFD sessions per system is the supported
linecard rate multiplied by the number of linecards.
◦
The maximum rate for BFD sessions per linecard is 9600 pps.
•
The maximum number of BFD sessions supported on any one card is 1440.
•
The maximum number of members in a bundle is 64.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
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Implementing BFD
BFD Object Tracking

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English