PurposeCommand or Action
Enters BGP configuration mode.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)# router bgp 65001
Step 3
Enables multihop peerings with external BGP
(eBGP) neighbors.
neighbor ip-address ebgp-multihop ttl-value
Example:
RP/0/RSP0/CPU0:router(config-bgp)#neighbor
21:1:1:1:1:1:1:2 ebgp-multihop 255
Step 4
Specifies IP address of the eBGP neighbor and
enables BFD fast detection.
neighbor ip-address bfd fast-detect
Example:
RP/0/RSP0/CPU0:router(config-bgp)#neighbor
21:1:1:1:1:1:1:2 bfd fast-detect
Step 5
commit
Step 6
Configuring BFD IPv6 Multihop for iBGP Neighbors
Perform this task to configure BFD IPv6 Multihop for iBGP neighbors:
SUMMARY STEPS
1.
configure
2.
bfd multipath include location node-id
3.
router bgp as-number
4.
neighbor ip-address bfd fast-detect
5.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Includes specified line cards to host BFD
multihop sessions.
bfd multipath include location node-id
Example:
RP/0/RSP0/CPU0:router(config)#bfd multipath include
location 0/7/CPU0
Step 2
Enters BGP configuration mode.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)#router bgp 65001
Step 3
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
282
Implementing BFD
Configuring BFD IPv6 Multihop