Re: [nsp] Inter-subnet switching on Catalyst switches

From: Scott Whyte (swhyte@cisco.com)
Date: Fri Jan 23 1998 - 18:50:07 EST


Check out

http://cco.cisco.com/warp/public/729/c5000/roswm_ds.htm

On Fri, 23 Jan 1998, Aaron Monfils wrote:

> You need a 4xxx or 7xxx with a FastEthernet or ATM interface that
> understands ISL. You will need a router no matter what you do. Remember
> that we route at layer 3 and switch at layer 2. IP Networks reside are at
> Layer 3.
>
> The link to the router will become an ISL trunk, carrying VLANs 200 and 204
> (assuming that you use the third octet of the IP Address as a VLAN number).
>
>
> At 03:54 PM 1/23/98 -0500, you wrote:
> >Hi,
> > this is probably a fairly basic question for some people used with
> >switching but I'm having a lot of trouble on finding documentation
> >answering my questions.
> > Anyways here's my question. We're looking at implementing a
> >Catalyst switch on our LAN and create VLANs. However, there are two
> >subnets on that network we'd like to put on the switch (let's say network
> >192.9.200.0 and 192.9.204.0) since we'd like to avoid readdressing. How
> >can I route between these two subnets?
> >Will the Catalyst be able to do that for me? Or do I have to use a
> >separate router.
> > If it's not available right now, when should it be?
> >
> >Thank you very much,
> >
> >Pierre-Etienne Chartier
> >
> >
> >>+=+=+=+=+=+=+=+=+=+=+=++=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+==+=<
> >> If there was an information revolution, it's over: <
> >> information won. <
> >> -Diana Lady Dougan <
> >>--------------------------------------------------------------------<
> >>Pierre-Etienne Chartier <
> >>Systems Analyst, Logibro, inc. <
> >>+=+=+=+=+=+=+=+=+=+=+=+=++=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+<
> >
> >
> >
> Aaron Monfils
> Network Engineer
> Kissane Business Systems
> amonfils@kissane.com
> http://www.kissane.com/
>

-------------------------------------------------------------------
Scott Whyte 408.527.5713 |Any opinions expressed herein are
Network Supported Accounts (NSA) |mine and not cisco's...
CCIE 3340 |
                                 | "Eschew Obfuscation"



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