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Oddly? Buffer increments?

Cisco Peers:

I have a Cisco 7500 with a nailed T-1 (emulating frame-relay). I see NO ERRORS on the interface, however I see the buffer pool statistic increment.

Here's the problem... poor performance on a link that is 10% utilized. I ping and get <10, <10, 20, 30, 70, drop, 60, 40, <10, <10 and so on. Cyclical in nature...

I have no errors in log, no other errors to speak of...

Any recommendations?

Thanks, JS

1 REPLY
Cisco Employee

Re: Oddly? Buffer increments?

Hi JS -

Can you describe what you mean by "buffer pool statistic" and/or include some captures from the router?

As for the erratic ping times, if you see no errors on the interface, it's likely due to some kind of congestion or delay in the frame relay cloud.

- show frame pvc

may be able to give you more information as to what is happening. BECN and FECNs denote congestion in the frame cloud, for example.

Quite often problems like these are due to a provisioning problem from the telco where the CIR is not correct.

More troubleshooting tips:

http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1918.htm

Regards,

Clay

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