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Webcast-Catalyst9k
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Strange buffer issues

We recently started monitoring a customer that has some serious "buffer misses" issues. We use Solarwinds to monitor the routers, switches, and access points. I noticed a couple of switches a one of the locations had over 500,000 buffer misses in one day. I will attach a text file that shows the amount of buffer misses throughout the different devices on the network.

One thing to note - The IOS on the switches are the original ones that shipped with the switches and are about 6 years old. How much do IOS upgrades fix buffer misses, or do I just need to 'tune' the buffers? Also, I don't see any packet loss either. Most of the switches are 2900's with 8MB RAM.

Any suggestions would be appreciated.

1 REPLY
Silver

Re: Strange buffer issues

The issue may due to following reason

The serial line is noisy.

The serial cable is too long or the cable from the CSU and Data Service Unit (DSU) to the router is not shielded.

The CSU line clock is configured incorrectly.

A ones density problem has occurred on the T1 link. This occurs from an incorrect framing or coding specification

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