I think I said that. :->
By "replace" I meant that IRB is far more functional, and more useful in
general..
With regards to the mechanics, IRB ( integrated routing and bridging ) one
can bridge into the routed domain ( interfaces, if you insist ) and route
into the bridged domain ( interfaces, if you insist ) this is done, as you
point out, through the bridge virtual interface ( BVI ) mechanism
with concurrent routing and bridging, CRB, one can indeed route and bridge
the most of the same protocols, but cannot forward packets from a bridged
interface to a routed interface or visa versa. i.e. from the bridged domain
into the routed domain or visa versa.
I think I understand what you are getting to when you say "bridge and route
on the same interface" but my response is why would you need to? oh, that's
right - you hearken to the days when Apollo, Dec, LAT and all that other
crap was out there ;->
Chuck
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
MADMAN
Sent: Tuesday, September 11, 2001 8:10 PM
To: [EMAIL PROTECTED]
Subject: Re: Routing and Bridging [7:19472]
IRB is differant from CRB not a replacemant. IRB allows one to bridge and
route on the same interface, CRB allows you to route and bridge on different
interfaces.
Dave
Chuck Larrieu wrote:
> hmmmm.... concurrent routing and bridging?
>
> using CRB, one cannot connect the bridged and the routed domains, but one
> can bridge and route the same protocol, if memory serves. CRB has pretty
> much been replaced by IRB.
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ibm_
> c/bcprt1/bcdtb.htm#xtocid1869423
> watch the wrap
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> MADMAN
> Sent: Tuesday, September 11, 2001 2:46 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Routing and Bridging [7:19472]
>
> ME thinks Russ wants to bridge and route the same protocol in which
> case that won't work. Check IRB, integrated routing and bridging. I
> have used IRB to bridge IP/IPX from one interface to another in the same
> router but never in the scenerio you describe.
>
> Dave
>
> Jim Brown wrote:
> >
> > int e0
> > ip address X.X.X.X Y.Y.Y.Y
> >
> > int e1
> > bridge-group 1
> >
> > int s0
> > ip address X.X.X.X Y.Y.Y.Y
> >
> > int s1
> > bridge-group 1
> >
> > bridge 1 protocol ieee (or dec)
> >
> > -----Original Message-----
> > From: Russ Kreigh [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, September 11, 2001 2:24 PM
> > To: [EMAIL PROTECTED]
> > Subject: Routing and Bridging [7:19472]
> >
> > Hello all -
> >
> > I need to bridge E1 to S1 on a router, and route E0 to S0, how can I do
> > this? This router config is the same on each end.
> >
> > END A END B
> >
> > E0-S0 -- S0-E0
> > E1-S1 -- S1-E1 (Bridge)
> >
> > Thanks
> >
> > -Russ
> --
> David Madland
> Sr. Network Engineer
> CCIE# 2016
> Qwest Communications Int. Inc.
> [EMAIL PROTECTED]
> 612-664-3367
>
> "Emotion should reflect reason not guide it"
--
David Madland
CCIE# 2016
Senior Network Engineer
Qwest Communications
612-664-3367
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=19573&t=19472
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