Re: What does "bridge" mean?

From: David Carlsson (dacaatREMOVE_at_homeTHIS.se)
Date: 02/03/05 

Date: Thu, 03 Feb 2005 17:01:04 +0100

You can describe a bridge as a switch with two (or more) interfaces of
different network technology, ethernet, token ring, T1, etc.

/David

Larry David wrote:
> Hi,
>
> I currently have two networks in two locations. They are connected by a
> T1 "local loop" with a Cisco router on each end of the loop. The two
> networks have an address scheme of 192.168.0.0/24 and 192.168.1.0/24
> respectively.
>
> A friend of mine has a similar situation to mine. He has two networks in
> two locations connected by a T1 "local loop" with a Cisco on each end -- but
> in HIS case, all computers in both locations are on the same logical
> network: 192.168.112.0/24. I don't understand how this can be, but he said
> that the person who configured his Ciscos set up a "bridge."
>
> Could someone explain to me what is a bridge is conceptually? This whole
> concept seems weird to me because it seems like he would end up having all
> kinds of broadcast messages (arp, dhcp, netbios, etc.) going across the that
> slow T1 link since all of the machines are on the same logical network.
> Clearly this can't be what my friend's network engineer intended, is it?
>
> Could someone give me the scenarios where MY configuration is preferable
> and scenarios where HIS bridge configuration is preferable? I'm just asking
> out of idle curiosity. I like to know things work -- even though I'm
> (obviously) not a network professional. I'm funny that way! Any comments
> would be appreciated.
>
> Thanks!
>
>

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