I think ONE of the main purposes of the term 'layer 3 switching' was to show
off multiple VLAN routing within the high-end Cisco switch. This is a really
cool technology within a switch and is definately beneficial when running
several VLANs on one or more switches...No external routers to route between
VLANs needed. What a deal!!
Marc
""Ian Schorr"" <[EMAIL PROTECTED]> wrote in message
8lr67m$mgp$[EMAIL PROTECTED]">news:8lr67m$mgp$[EMAIL PROTECTED]...
> And by default, most current Cisco routers already have Fast Switching or
> better enabled (unless extended IP access lists are applied, if I remember
> right).
>
> ""Tony Olzak"" <[EMAIL PROTECTED]> wrote in message
> 8lak03$u0r$[EMAIL PROTECTED]">news:8lak03$u0r$[EMAIL PROTECTED]...
> > But the performance is still much faster than manually routing
everything.
> > After the first couple of packets, the switch doesn't need to go through
> the
> > router to reach the other subnet. So, in fact, it is really like layer 3
> > switching.
> >
> > "Kent Hundley" <[EMAIL PROTECTED]> wrote in message
> >
>
news:[EMAIL PROTECTED]
> > icrosoft.com...
> > > Ron,
> > >
> > > layer 3 switching = routing
> > >
> > > "layer 3 switching" is just a marketing term thought up by sales
droids
> to
> > > confuse the masses. At most, layer 3 switching means "fast routing
and
> > > fowarding". You have asics and software enhancements, but the basic
> > > foundation its still a layer 3 path determination and forwarding based
> on
> > > that information, i.e what we called routing in the old days.
> > >
> > > Hope that sheds some light.
> > >
> > > -Kent
> > >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > > Ron Stark
> > > Sent: Friday, July 21, 2000 10:06 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: LAN design
> > >
> > >
> > > Hi people,
> > >
> > > I have a design question that I was wondering if someone could shed
some
> > > light
> > > on. With all the talk of layer3 switching these days, is it a good
idea
> to
> > > switch at the core? Shouldn't the core be routed?
> > >
> > > Thanks - Ron
>
>
>
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