Re: Cisco switch upgrade turns XP performance to crap
From: John (anonymous_at_discussions.microsoft.com)
Date: 02/10/04
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Date: Tue, 10 Feb 2004 10:21:06 -0800
Check to see if the nic is on auto, when the cisco is on fixed you'll have a mismatch.
Put them both on fixed speed and duplex settings or both on auto. first one is preferrable.
----- Kent W. England [MVP] wrote: -----
From your answers, I would focus on the server that is having the
problem. There is likely something different about its configuration
that causes this bad interaction with XP. If it is a server issue, it
may be a SMB issue. There are several incompatibilities related to SMB
and XP with 2K.
If it is network related, check the IP MTU settings on the server and on
the cisco switch. If the cisco switch is fragmenting all the SMB
transfers, that would send performance to the pits. If the server is
using some jumbo gigabit frame setting that would guarantee
fragmentation to the desktops.
--
Kent W. England, Microsoft MVP for Windows Security
"Barb G" <barbgrajspammenot@uic.edu> wrote in message
news:O9cGFw$vDHA.2000@TK2MSFTNGP11.phx.gbl...
> Kent W. England [MVP] wrote:
>> You should consider the relationships of the handful of XP client
>> workstations with problems:
>>>> Are they all on the same subnet?
>> No.
>>> Are they all on the same switch or switch type?
>> No.
>>> Are the Cisco switches programmed EXACTLY alike?
>> No idea if there are Cisco switches in each FDF (2 per floor, 2
floors).
> Just know that the NEW switch is a Cisco, and it's the one that
connects
> their Win2k servers. However, they have problems even with
workstations
> on that same switch, as well as workstations on the other floor.
>>> Are the problems only with a particular win2K server?
>> Hard to tell, because login is so slow, but it appears to be one
server,
> not the other.
>
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