About the only reason I have used BVI of late is on routers that
terminate DSL, (I know it's not the only way) and to connected L3
engines of some switches to the L2
Route to live, live to route!!!!
Dave
Chuck Larrieu wrote:
>
> 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 much been replaced by IRB.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
--
David Madland
Sr. Network Engineer
CCIE# 2016
Qwest Communications Int. Inc.
[EMAIL PROTECTED]
612-664-3367
"Emotion should reflect reason not guide it"
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=19594&t=19472
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