Re: OT : What is Best Practice to avoid Spanning Tree Loops

Dear Experts,

Can somebody please share your valuable inputs on my below query.

~ Akber Mirza.

On Tue, Nov 13, 2012 at 11:41 AM, Akber Ali Mirza
<akberali.cisco_at_gmail.com>wrote:

> Dear Friends,
>
>
>
> I want to know what is the best design for avoiding spanning tree Loops .
>
> I want to brief you about the our network .
>
>
>
> We have core-sw1 and core-sw2 which are running with Layer3 routing
>
> Core-sw1 is running with Vtp Server and core-sw2 is running with VTP
> client mode.
>
> Core-sw 1 is Primary root and core-sw2 is Secondary root.
>
> All the Access-switches are running in VTP Client mode.
>
>
>
> All Access-switches are directly connected to core1 and core2 switches as
> we do not have any distribution switches in our network
>
> to connec the Access switches.
>
>
>
> All the Production servers & Baldecentre switches are connected direcly
> to the Core-sw1 instead connecting to a Server Farm Switch. as we donot
> have any ServerFarm switch.
>
>
>
> However , We would like to make changes to our network to avoid or reduce
> the Laey2 loops effecting the production traffic .
>
>
>
> I want to know what are the new hardware required to have further best
> desing to avoid Layer 2 loops.
>
>
>
> 1) Distribution switches 4900 ( hardware available) -2 what all we
> need to configure.
>
> 2) Server Farm switch with which sup engine -- what all we need to
> configure.
>
> 3) Are we supposed to connect the Blade switches directly to Core-sw1
> incase if we agree to have server farm (6500) switch can we directly connect
>
> the Balde centre switches to Server Farm (6500 ) with access port or
> trunk mode .
>
>
>
> 4) Suppose if i want to configure vlan2 & vlan 222 as my serverfarm switch
> , I believe we need to have only these Layer 2 vlans and their relevant L3
> vlans. When I do this I guess we will not have any impact on the servers
> incase if any loop occurs in the access-switches which are connected to
> Distribution switches. Please correct me if i am wrong ?
>
>
>
>
>
> I am attaching the diagram of our existing setup and please recommend me
> the best design to avoid L2 loops .
>
>
>
> Appreciate your quick and valuable response.
>
>
> Regards,
>
> Akber Mirza.

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Received on Fri Nov 16 2012 - 00:03:56 ART