RE: ISL Trunking & Subinterfaces

From: Sam Munzani (sam@xxxxxxxxxx)
Date: Fri Oct 13 2000 - 16:44:37 GMT-3


   
You might be told not to use IP addresses directly to subinterface. That's
why this is done.

Sam

On Fri, 13 Oct 2000, Asbjorn Hojmark wrote:

> > R1
> > !
> > interface fastethernet0
> > no ip address
> > no shutdown
> > !
> > interface fastethernet0.1
> > encaps isl 100
> > bridge-group 1
> > !
> > interface fastethernet0.2
> > encaps isl 200
> > bridge-group 2
> > !
> > interface bvi 1
> > ip address 192.168.1.1 255.255.255.0
> > !
> > interface bvi 2
> > ip address 192.168.2.1 255.255.255.0
> > !
> > bridge irb
> > bridge 1 protocol ieee
> > bridge 1 route ip
> > bridge 2 protocol ieee
> > bridge 2 route ip
> >
> > That should do the trick.
>
> Why are you using IRB in this particular setup?
>
> You could configure the ip addresses directly on the sub-
> interfaces and there's really no reason to do IRB if you
> don't plan on bridging the VLANs onto other interfaces.
>
> -A
> --
> Heroes: Vint Cerf & Bob Kahn, Leonard Kleinrock, Robert Metcalfe
> Links : http://www.hojmark.org/networking/
>
>



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