Configuring Bfd At The Tail End - Cisco ASR 9000 Series Configuration Manual

Configuring BFD over MPLS Traffic Engineering LSPs
Command or Action
Step 2
interface tunnel-te interface-number
Example:
RP/0/RSP0/CPU0:router(config)#interface
tunnel-te 65535
Step 3 Use one of these commands:
• bfd lsp-ping interval 300
Example:
RP/0/RSP0/CPU0:router(config-if)#bfd
lsp-ping interval 300
Or
RP/0/RSP0/CPU0:router(config-if)#bfd
lsp-ping disable
Step 4
commit
What to Do Next
Configure BFD at the tail-end.

Configuring BFD at the Tail End

Use the tail end global configuration commands to set the BFD minimum-interval and BFD multiplier
parameters for all BFD over LSP sessions. The ranges and default values are the same as the BFD head end
configuration values. BFD will take the maximum value set between head end minimum interval and tail end
minimum interval.
Perform these tasks to configure BFD at the tail end.
SUMMARY STEPS
1. configure
2. mpls traffic-eng bfd lsp tailminimum-interval milliseconds
3. mpls traffic-eng bfd lsp tailmultiplier number
4. commit
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
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Purpose
Configures MPLS Traffic Engineering (MPLS TE) tunnel interface
and enters into MPLS TE tunnel interface configuration mode.
Sets periodic interval for LSP ping requests or disables LSP ping
requests.
• interval seconds—Sets periodic LSP ping request interval in
seconds. The interval range is 60 to 3600 seconds. Default interval
is 120 seconds.
• disable—Disables periodic LSP ping requests.
Periodic LSP ping request is enabled by default. The default interval
for ping requests is 120 seconds. BFD paces LSP ping to be under 50
ping per seconds (PPS). Thus ping interval is honored; however, this
is not guaranteed unless configuring an interval between 60 and 3600
seconds.
Implementing BFD
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