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List:       linux-poweredge
Subject:    Re: Single, dual or quad Gigabit?
From:       Mark Watts <m.watts () eris ! qinetiq ! com>
Date:       2004-05-26 11:07:22
Message-ID: 200405261207.23014.m.watts () eris ! qinetiq ! com
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> On Wed, 26 May 2004, Mark Watts wrote:
> > PCI-X only has so much bandwidth (I forget exactly how much). If you
> > stuff too many nic's in there, you'll hit that limit and physically not
> > be able to go any faster. a Quad card would certainly be too much.
> 
> PCI-X (64bit@133MHz) is in theory 1064 MByte/s. Quad full duplex gigabit
> ethernet is in theory 1000 MByte/s. 

I forgot about 133Mhz PCI-X. If your nic is only 100Mhz, you'll only get 
800MBytes/sec

Mark.

- -- 
Mark Watts
Senior Systems Engineer
QinetiQ Trusted Information Management
Trusted Solutions and Services group
GPG Public Key ID: 455420ED

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