I was taking the old-fashioned view that Layer-3 switch = router. I hadn't
considered what Jay said that it's a "Layer-3 and below" device and it
could be doing Layer-2 switching (bridging) for devices all in the same
VLAN and the same subnet, as you say.
Sounds like a Layer-3 switch by this new definition is nothing more than a
brouter! Nothing every really changes. We've been having this same
discussion for 15 years. %-}
Priscilla
At 08:14 PM 10/6/00, Chris Larson wrote:
>I think you may be mistaken.
>
> If all ports are in a single Vlan then it is one broadcast domain and 32
>collision domains.
>If you split it into 2 Vlans then you have 2 broadcast domains and 32
>collision domains.
>
>If a 32 port switch had 32 broadcast domains then no broadcasts would ever
>be forward to other ports even if all the devices plugged into it were in
>the same vlan and subnet.
>
>
>----- Original Message -----
>From: "Priscilla Oppenheimer" <[EMAIL PROTECTED]>
>To: "NetEng" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
>Sent: Wednesday, October 04, 2000 3:06 PM
>Subject: Re: Layer3 switching--Follow Up Question
>
>
> > At 09:17 AM 10/4/00, NetEng wrote:
> > >Does a 32 port layer3 switch module then have 32 collision/broadcast
>domains?
> >
> > Yes.
> >
> > > What about broadcast based services?
> >
> > What about it??
> >
> > Priscilla
> >
> > >
> > >
> > >>""NetEng"" <<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> wrote in
> > >>message
><8rdafq$kqb$[EMAIL PROTECTED]">news:8rdafq$kqb$[EMAIL PROTECTED]>8rdafq$kqb$[EMAIL PROTECTED]">news:8rdafq$kqb$[EMAIL PROTECTED]...
> > >>What are the benefits of layer3 switching (versus layer2)? Can I create
> > >>VLAN's w/o using a router on a layer3 switch?
> >
> >
> > ________________________
> >
> > Priscilla Oppenheimer
> > http://www.priscilla.com
> >
> > **NOTE: New CCNA/CCDA List has been formed. For more information go to
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> > _________________________________
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________________________
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