Cisco ASR 9000 Series

BFD Source and Destination Ports 179
BFD Packet Intervals and Failure Detection 179
BFD Packet Intervals on Physical Interfaces 179
BFD Packet Intervals on Bundle Member Links 180
Control Packet Failure Detection In Asynchronous Mode 180
Echo Packet Failure Detection In Asynchronous Mode 180
Echo Failure Detection Examples 181
Summary of Packet Intervals and Failure Detection Times for BFD on Bundle
Interfaces 182
Echo Packet Latency 183
Priority Settings for BFD Packets 183
BFD for IPv4 184
Enabling BFD on a Static Route 185
BFD for IPv6 187
BFD on Bundled VLANs 187
BFD Over Member Links on Link Bundles 188
Overview of BFD State Change Behavior on Member Links and Bundle Status 188
BFD Multipath Sessions 190
BFD for MultiHop Paths 190
Setting up BFD Multihop 191
BFD over MPLS Traffic Engineering LSPs 191
Bidirectional Forwarding Detection over Logical Bundle 191
Bidirectional Forwarding Detection over Generic Routing Encapsulation 192
Bidirectional Forwarding Detection IPv6 Multihop 192
BFD over Pseudowire Headend 193
BFD over Satellite Interfaces 193
BFD over IRB 193
BFD over Bundle Per-Member Link 194
BFD Dampening 195
BFD Hardware Offload 195
BFD Object Tracking 196
How to Configure BFD 196
BFD Configuration Guidelines 196
Configuring BFD Under a Dynamic Routing Protocol or Using a Static Route 197
Enabling BFD on a BGP Neighbor 197
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
OL-30423-03 ix
Contents