Good points, Erik - some thoughts below:

""Erick B.""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Comments inline...
>
snipp for brevety

> > CL: 12 copper gig ports and 48x10/100 ports fits
> > nicely into a 4006, which
> > conveniently now sells with an L3 blade.. Use the
> > 10/100/1000 blade, or use
> > the copper gig GBICs, depending on other
> > consideration.
>
> But the 4006 is a wiring closet switch. I recently ran
> into a company trying to use a 4006 w/sup2 with 12
> GBIC ports attached to servers w/gigabit NICs and
> their performance and throughput suffered. (Ie:
> In-lost errors, rx-errors, and txmt-errors which all
> point to excessive traffic and full buffers). I've
> only seen this w/sup2s however so maybe sup3 or sup4
> would help. I've seen other companys also have
> problems when using 4006 as a core/data-center device
> with a good amount of servers attached.


CL: according to the specs, the 4006 has a 64 gig backplane, superior to the
65xx's advertised 32 gig out of the box. I do recall some conversation
somewhere about Cisco's 6 port gig blade architechture being somewhat
restrictive, but I don't recall the details. Something about each three gig
ports sharing a chunk of the backplane? If this is the case, I can see
certain high speed server applications having problems. Althoug I gotta say,
the 65xx architechture isn't any better.

CL: also, there could have been other reasons why there were problems in the
case you mention.


>
> > CL: OR... I gotta keep brining this up - depending
> > on the applications and
> > traffic flows, a 3550-12G and a cou-ple of 3550-48's
> > might just do the
> > trick. The 12G is L3 out of the box.
>
> Agreed, or some other vendors box that isn't as pricy
> as the 6500 series (Extreme, Foundry).


CL: hush............. this is a Cisco list........ ;->

>
> > > -----Original Message-----
> > > From: Stuart Pittwood
> > [mailto:[EMAIL PROTECTED]]
> > > Sent: Saturday, September 28, 2002 2:12 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Confused about Catalyst part numbers
> > [7:54437]
> > >
> > >
> > > I am looking into buying a Catalyst 5509 for the
> > core of our network, I
> > > am however confused by the part numbers I will
> > need.
> > >
> > > I need about 12 + Gigabit Ethernet (Copper) ports,
> > 48 10/100BaseT ports,
> > > a GBIC uplink to some 2950G-EIs we have, and an
> > RSM to provide intervlan
> > > routing.
> > >
> > > Can anyone advise of of the part numbers I would
> > need to get the
> > > required ports?
> > >
> > > Am I correct in thinking the the Supervisor Engine
> > III would provide the
> > > layer 3 functions?
> > >
> > > Thanks in advance
> > >
> > > Stu
>
>
> __________________________________________________
> Do you Yahoo!?
> New DSL Internet Access from SBC & Yahoo!
> http://sbc.yahoo.com




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