Slowness on Exchange 2007 Server (network related we think)

Posted by Az on Server Fault See other posts from Server Fault or by Az
Published on 2011-01-13T19:12:32Z Indexed on 2011/01/13 19:55 UTC
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windows-server-2003

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exchange

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exchange-2007

We are seeing some odd behavior out of our exchange 2007 server. I believe it is network related as during the slowness in response from the exchange server. During these times downloading files to server is fraught with connection resets and extreme slow download speeds that are not affecting other servers right on the same subnet with the same gateway and ISP. We have about 50 users at a time using Outlook 2003 from a terminal server not displaying any other signs of slowness, all network slowness is confirmed trying downloads on the exchange server itself.

Checked for virus issues, there are none. Checked for hardware issues, none found

I am noticing between 200-400 TCPv4 connections established I am seeing around 100k tcpv4(active) connections according to perfmon

are these numbers odd? Has anyone run into anything similar?

Our server has a gigbabit NIC linked to a gigabit switch using cat6 so I do not believe it is "physical".

Thanks!

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