Cisco NCS 6000 Series Configuration Manual page 183

Implementing BFD
Note BFD paces the creation of BFD sessions by limiting LSP ping messages to be under 50 PPS to avoid variations
in CPU usage.
SUMMARY STEPS
1. configure
2. interface tunnel-te interface-number
3. bfd fast-detect
4. bfd minimum-intervalmilliseconds
5. bfd multiplier number
6. commit
DETAILED STEPS
Command or Action
Step 1 configure
Step 2 interface tunnel-te interface-number
Example:
RP/0/RP0/CPU0:router(config)#interface tunnel-te
65535
Step 3 bfd fast-detect
Example:
RP/0/RP0/CPU0:router(config-if)#bfd fast-detect
Step 4 bfd minimum-intervalmilliseconds
Example:
RP/0/RP0/CPU0:router(config-if)#bfd
minimum-interval 2000
Step 5 bfd multiplier number
Example:
RP/0/RP0/CPU0:router(config-if)#bfd multiplier 5
Step 6
commit
What to do next
Configure BFD bring up timeout interval.
Once LSP is signaled and BFD session is created, TE allows given time for the BFD session to come up. If
BFD session fails to come up within timeout, the LSP is torn down. Hence it is required to configure BFD
bring up timeout
Purpose
Configures MPLS Traffic Engineering (MPLS TE) tunnel
interface and enters into MPLS TE tunnel interface
configuration mode.
Enables BFD fast detection.
Configures hello interval in milliseconds.
Hello interval range is 100 to 30000 milliseconds. Default
hello interval is 100 milliseconds
Configures BFD multiplier detection.
BFD multiplier range is 3 to 10. Default BFD multiplier is
3.
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
Enabling BFD Parameters for BFD over TE Tunnels
161