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ISA performance - Gigabit vs 100 Mbit nic

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ISA performance - Gigabit vs 100 Mbit nic - 21.Oct.2005 2:50:00 PM   
mthurmond

 

Posts: 5
Joined: 12.Oct.2005
Status: offline
Good day,

I have configured isa 2004 enterprise edition using the single network adapter template to act as a web proxy service.

The server hardware is a Dell 2850 with Dual Intel ProSet 1000baseT network cards, one disabled.

I have narrowed the issue down to the following situation: When the ISA server is connected to a Gigabit switch, performance is great. When the ISA server is connected to a 100 Mbit switch, performance suffers horribly. Normal throughput to the internet is reduced by a factor of 4. For example when I am using the server as a proxy service I will get around 30Kbps whereas download speeds should be in the neighborhood of 120kbps. This is not a problem with the switch for a download initiated on the ISA server itself via internet explorer will reach the normal rate while at the same time a client connecting through the proxy service of the ISA service will be experiencing reduced throughput.

Can anyone point me at something I might look at in the configuratoin?

thanks,

-Mike
Post #: 1
RE: ISA performance - Gigabit vs 100 Mbit nic - 24.Oct.2005 3:00:00 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
Moving to Web proxy section.

(in reply to mthurmond)
Post #: 2

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