BFD Packet Intervals and Failure Detection 131
Priority Settings for BFD Packets 135
BFD for IPv4 135
Enabling BFD on a Static Route 136
BFD for IPv6 137
BFD on Bundled VLANs 137
BFD Over Member Links on Link Bundles 138
Overview of BFD State Change Behavior on Member Links and Bundle Status 138
BFD for MultiHop Paths 140
Setting up BFD Multihop 140
BFD IPv6 Multihop 140
BFD over MPLS Traffic Engineering LSPs 141
BFD Object Tracking 141
How to Configure BFD 142
BFD Configuration Guidelines 142
Configuring BFD Under a Dynamic Routing Protocol or Using a Static Route 142
Enabling BFD on a BGP Neighbor 142
Enabling BFD for OSPF on an Interface 144
Enabling BFD for OSPFv3 on an Interface 145
Configuring BFD on Bundle Member Links 147
Prerequisites for Configuring BFD on Bundle Menmber Links 147
Specifying the BFD Destination Address on a Bundle 147
Enabling BFD Sessions on Bundle Members 148
Configuring the Minimum Thresholds for Maintaining an Active Bundle 148
Configuring BFD Packet Transmission Intervals and Failure Detection Times on a Bundle 149
Configuring Allowable Delays for BFD State Change Notifications Using Timers on a Bundle
151
Enabling Echo Mode to Test the Forwarding Path to a BFD Peer 152
Overriding the Default Echo Packet Source Address 152
Specifying the Echo Packet Source Address Globally for BFD 152
Specifying the Echo Packet Source Address on an Individual Interface or Bundle 153
Configuring BFD Session Teardown Based on Echo Latency Detection 154
Delaying BFD Session Startup Until Verification of Echo Path and Latency 154
Disabling Echo Mode 156
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
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