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New Member

Static Routing with timers

Hi all,

We are using DXX as a primary link and I-Direct as secondary link between our Head Office and a branch office in other city. We are using static routing for automatic switching between the links i.e. when DXX goes down I-Direct comes up automatically. These days our DXX is fluctuating. This creates alot of trouble. Is there any thing as a timer on static routes that if our DXX is down and I-Direct is working and suddenly DXX comes up so I-Direct should wait for a certain hold down time before switching back to DXX.

Thanks in advance.

- Jay

4 REPLIES
Silver

Re: Static Routing with timers

Hi,

which type of interfaces do you have?

In general, you can use a 'backup interface' command with a specific 'backup delay'.

Example:

backup delay 10 30 ! 30 is your 'hold down time

backup interface

Remember: it's important that on during the fault the encapsulation goes down to use correctly the backup interface

HTH

Regards

Andrea

New Member

Re: Static Routing with timers

Thanks alot Andrea, your sugesstion solved my problem. You are the best.

Reagrds,

Jay

Silver

Re: Static Routing with timers

you're welcome, Jay.

Best Regards

Andrea

Re: Static Routing with timers

You could also consider interface dampening.

if a port flaps few times, it is penalised and shutdown until it stablises.

http://www.cisco.com/en/US/docs/ios/12_2t/12_2t13/feature/guide/ftipevdp.html

HTH

Sam

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