Configuring Bfd Dampening For Te Tunnels - Cisco ASR 9000 Series Routing Configuration Manual

Implementing BFD
DETAILED STEPS
Command or Action
Step 1
configure
Step 2 interface tunnel-te interface-number
Example:
RP/0/RSP0/CPU0:router(config)#interface
tunnel-te 65535
Step 3 bfd bringup-timeout seconds
Example:
RP/0/RSP0/CPU0:router(config-if)#bfd
bringup-timeout 2400
Step 4 commit
What to Do Next
Configure BFD dampening parameters to bring up the TE tunnel and to avoid signaling churn in the network.

Configuring BFD Dampening for TE Tunnels

When BFD session fails to come up, TE exponentially backs off using the failed path-option to avoid signaling
churn in the network.
Perform these steps to configure dampening intervals to bring the TE tunnel up.
Before You Begin
• BFD must be enabled under MPLS TE tunnel interface.
• BFD bring up timeout interval must be configured using the bfd bringup-timeout command.
SUMMARY STEPS
1. configure
2. interface tunnel-te interface-number
3. bfd dampening initial-wait milliseconds
4. bfd dampening maximum-wait milliseconds
5. bfd dampening secondary-wait milliseconds
6. commit
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
Configuring BFD over MPLS Traffic Engineering LSPs
Purpose
Configures MPLS Traffic Engineering (MPLS TE) tunnel
interface and enters into MPLS TE tunnel interface
configuration mode.
Enables the time interval (in seconds) to wait for the BFD
session to come up.
Bring up timeout range is 6 to 3600 seconds. Default bring
up timeout interval is 60 seconds.
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