Fallback bridging

From: Deepesh Chouhan (deepesh@cisco.com)
Date: Fri Jul 25 2003 - 19:49:56 GMT-3

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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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