Re: Fallback bridging

From: Rivalino YMT. (rivel131@cyberlib.itb.ac.id)
Date: Mon Jul 28 2003 - 00:08:58 GMT-3


Hi Deepesh,

What I know, just add "bridge-group X" under SVI.
So option d is correct I think.

Rivalino

On Fri, 25 Jul 2003, Deepesh Chouhan wrote:

> Hi
>
> If i have to configure fallback bridging between 2 VLANS (A & B) on a
> switch
> (assuming brigde X protocol vlan is already configured)
> Options
> 1. All switchports on A & on B - config "bridge-group X"
> 2. SVI A and SVI B - config "bridge-group X"
>
> Which is correct config -
> a - both 1 and 2 are required
> b - either 1 or 2
> c - 1 is correct; 2 is incorrect
> d - 2 is correct; 1 is incorrect
>
> I've tried option d - it works (tested it using IPX)
> I'm bit confused with e.g. given in UniverCD.
> http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12114ea1/3550scg/s
> wfallbk.htm#1020563
>
> Switch(config)# bridge 10 protocol vlan-bridge
> Switch(config)# vlan 2
> Switch(config-vlan)# exit
> Switch(config)# interface vlan2
> Switch(config-if)# exit
> Switch(config)# interface gigabitethernet0/2
> Switch(config-if)# switchport mode access
> Switch(config-if)# switchport access vlan 2
> Switch(config-if)# no switchport
> Switch(config-if)# no shutdown
> Switch(config-if)# bridge-group 10
>
> It creates a vlan 2 SVI, but configs bridge on switchport; not on SVI
>
> thanks
> deepesh
>
>
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