For BFD over Bundle, the BFD client is bundlemgr. Hence if BFD session goes down, bundlemgr will bring
down the bundle, and this in turn brings down the routing session.
Note
Enabling BFD Sessions on Bundle Members
To enable BFD sessions on bundle member links, complete these steps:
SUMMARY STEPS
1. configure
2. interface Bundle-Ether bundle-id
3. bfd address-family ipv4 fast-detect
4. bfd mode ietf
5. commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enters interface configuration mode for the specified bundle
ID.
interface Bundle-Ether bundle-id
Example:
Step 2
RP/0/RP0/CPU0:router(config)# interface
Bundle-Ether 1
Enables IPv4 BFD sessions on bundle member links.bfd address-family ipv4 fast-detect
Example:
Step 3
RP/0/RP0/CPU0:router(config-if)# bfd address-family
ipv4 fast-detect
Enables IETF mode for BFD over bundle for the specified
bundle.
bfd mode ietf
Example:
Step 4
RP/0/RP0/CPU0:router(config-if)# bfd mode ietf
commit
Step 5
Specifying the BFD Destination Address on a Bundle
To specify the BFD destination address on a bundle, complete these steps:
SUMMARY STEPS
1. configure
Routing Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.3.x
214
Implementing BFD
Enabling BFD Sessions on Bundle Members