RE: What's your View about these

From: Guyler, Rik (rguyler@shp-dayton.org)
Date: Wed Jul 26 2006 - 11:47:32 ART


Wouldn't we all! However, my plan to put 6500s in all of my access closets
would stand as much a chance as a snowball's in he!! of getting approved.
Like somebody else said, what we want and what we can afford are two
different things. My point was that the CAMs my not always listen to my
requirements, like a budget of $300k, not $750k and thinking more of their
pockets than my needs. Just an indicator that Cisco's "recommended"
solutions may well change daily. ;-)

-----Original Message-----
From: Duane Dewitt [mailto:Duane.Dewitt@za.verizonbusiness.com]
Sent: Wednesday, July 26, 2006 10:38 AM
To: Guyler, Rik
Subject: RE: What's your View about these

I would also put them into access if I had the chance, all these stupid
little workgroup switches everywhere get's on my nerves :)

Regards
Duane
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Guyler, Rik
Sent: 26 July 2006 04:04 PM
To: 'ccielab@groupstudy.com'
Subject: RE: What's your View about these

Oh, I think it still is. We have 3 distribution blocks in our primary data
center and the third one is comprised of redundant 6500/Sup720s.
The first two, however, were put in some years ago and are comprised of the
4000/4500s I mentioned earlier. I wouldn't do that myself given a choice
but honestly, these boxes have served well over the years. Of course, we're
healthcare and just a little backwards so many of our server-type devices
are still running 100Mb. Once we go fully to GigE then we may well just
kill those 4ks.

Funny you mention Cisco's declaration that the 6500 is the premier data
center switch. If most of the Cisco Account Managers I know had the chance,
they'd be putting 6500s in the access layer. ;-)

Rik

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Duane Dewitt
Sent: Wednesday, July 26, 2006 9:47 AM
To: ccielab@groupstudy.com
Subject: RE: What's your View about these

 What ever happened to the Catalyst 6500 being the premier data centre
switch? 720gb backplane and specific products designed just for data
centres.

Regards
Duane
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Guyler, Rik
Sent: 25 July 2006 07:03 PM
To: 'ccielab@groupstudy.com'
Subject: RE: What's your View about these

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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