Frame-relay CIR question

Answered Question
Mar 30th, 2007

If you have a frame-relay circuit with a port speed of 1.544Mbps and a CIR of 192Kbps, will this circuit burst to the port speed?

Thanks,

Chris

I have this problem too.
0 votes
Correct Answer by sundar.palaniappan about 9 years 8 months ago

Yes, show frame-relay lmi would show the CIR of every DLCI if the lmi type is Cisco.

As far as how much you are allowed to burst up to is something that you need to check with your provider.

HTH

Sundar

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royalblues Fri, 03/30/2007 - 13:13

Yes if the ISP has configured the excess burst.

192K CIR for a 1544K pipe seems to be very less though

Narayan

chris.damore Fri, 03/30/2007 - 13:19

Any way to tell it this is the case from the router configuration?

Also, how can you tell what the CIR is by the router configuration?

Thanks,

Chris

Richard Burts Fri, 03/30/2007 - 13:57

Chris

Since the CIR and the burst parameters are configured in the Frame Relay switch there is not any way to look into the router config and find either the CIR or the burst capability.

Depending on the type of LMI being used you may be able to find the CIR that is configured. The Cisco type LMI has a field which can report the CIR.

HTH

Rick

chris.damore Fri, 03/30/2007 - 14:07

So you would do the show frame-relay lmi command to see this?

Thanks,

Chris

Correct Answer
sundar.palaniappan Fri, 03/30/2007 - 14:25

Yes, show frame-relay lmi would show the CIR of every DLCI if the lmi type is Cisco.

As far as how much you are allowed to burst up to is something that you need to check with your provider.

HTH

Sundar

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