From: Guyler, Rik (rguyler@shp-dayton.org)
Date: Tue Jul 25 2006 - 14:03:26 ART
Our server farm connects into the network at the distribution layer, where
we typically have better equipment and higher bandwidth backplanes. In our
case, we use 4500 switches with Sup4s, which has been an excellent
combination supporting over 300+ servers, mainframes, minis, AS400s, etc.
The 3750 series switches should also be a pretty good solution in this
situation but the backplane will be much less than a more robust chassis
switch. Be conservative on the number of switches in a single stack since I
seem to recall the backplane in a stack runs at 32Gb.
I would not directly connect anything directly into the core except for
distribution and other core switches. Sometimes the demarcation point is
not clearly defined so if your core and distribution layers are collapsed
into a single device or layer then really, from an architectural perspective
the 3750 stacks would be considered access layer but the reality is that
they are still only a single hop away form the core so don't get too wrapped
up into the terminology.
Rik
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Salau,Olayemi
Sent: Tuesday, July 25, 2006 12:07 PM
To: Cisco certification
Subject: Re: What's your View about these
Hello Guys,
I'm struggling trying to convince my boss on the issue of choosing a design
over the other.
Basically, we want to make a decision on whether to connect our
Servers(about 250 of them) into our Core/Distribution Layer Switches OR to
connect them into an access layer switch and then provide uplinks to the
core that way.
>From my own experience and knowledge, I prefer the option of segmenting
the server farm and then connecting the access layer switches to the
distribution layer rather than plugging all the servers directly into the
core switches. I know this is a basic design principle question, but to be
honest, I've had a look around on the internet and there is no such document
that states the best practise to executing this. Our Core/Distribution
Switches are 6500 series, We intend to purchase the 3750G Series to provide
1Gbps link for the server. We can then create gigabit uplinks between the
3750G Switches and the 6500 Series, does this sound like agood idea?
Many Thanks
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