Poor 3750G Switch performance

Unanswered Question
Jun 17th, 2007

I have an 8 3750G switch stack that does IP intervlan routing for 20 different vlans.

The top 2 switches have all servers conencted to them. Bottom 6 switches are client access switches. All switches provide gigabit connections to servers and clients.

I verified that the stack ring is running at full duplex 32 gbps.

Seems like top switch is performing very slowly when tranfering data between servers, speeds of < 100 megabit.

All ports are set to auto/auto as well as the servers and clients.

No errors on the ports whatsoever.

I'm guessing that there may be some over subscription but I do not know what to look for.

Can anyone guide me in the way to see what can be causing the crappy performance?

Should I seperate the IP routing switches from the access switches?

I have this problem too.
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