You are correct that, not only should it work, but you don't need Spanning
Tree unless you have more than one connection between the two switches.
As an aside, make sure you are trunking on the link between the two
switches......
>From what you're described, I don't see why this wouldn't work.........
Can you e-mail me a copy of your configs (from the two 7200s and 3548s).
Perhaps that might help.....
Mike W.
"TRAISTER, BLAKE (SBCI)" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
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> I have 2 Cisco 7200s, with 3 interfaces. We will call them
> routerleft and routerright. They are connected via their ethernet
> interfaces to 2 switches: Catalyst 3548XLs, switchleft and
> switchright. The switches are divided into 3 vlans each: vlan1,
> vlan2, vlan3. The switches are connected via their Gi ports
> (essentially to mirror each other.
>
> Sooooo
>
> Router right fa1/0 goes to switchright:port 1, vlan 1, fa 1/1 to port
> 1, vlan2 (port 17), and fa 2/1 to port 1, vlan3 (port 33).
> Router left fa1/0 goes to switchleft:port 1, vlan 1, fa 1/1 to port
> 1, vlan2 (port 17), and fa 2/1 to port 1, vlan3 (port 33).
>
> Each router interface is running HSRP...so routerright fa 1/0 is hsrp
> with router left fa 1/0 and so on with each interface
>
> Router right interfaces have priority preempt set to 120 and router
> left has priority preempt 100
>
> We are doing just fine until I plug router right into the switch
> right interfaces....Obviously there is a spanning tree loops and
> ports start blocking.
>
> So then...I turn off spanning tree in all vlans....and the hsrp
> starts flapping.....every 2 minutes or so there is a 30 second state
> change...
>
> Is there some way I can get the routers to shut up...let one be
> active the other be standby and still have everything connected? I
> currently do it with Extreme Summit 48s..spanning tree is completely
> off....and its works fine...
>
> Thanks!
>
> Blake
>
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