[c-nsp] Cisco 3012 IBM Blade Switch Configurations?

[ChrisSerafin]

So how do you have this implemented? I see the L3 fa0 port connects to 
the internal 'virtual switch chassis' and the rest is L2.....

I'm trying to setup Citrix XEN VM Server on the blades and thinking this 
is how I will do it:

I will have a pair of 2960's upstream that will have 2 bonded 
etherchannels going into each switch blade from each 2960. The 
etherchannels will be trunk links and then I will configure the internal 
virtual switchports as trunks going into the XEN Server....XEN is just 
like VMware/ESX...... the server tags the VLANs depending on what 
network they need to be on.


Make sense at all? I've been google'ing until my eyes bleed trying to 
get up to speed on these devices.


David Hughes wrote:
>
> On 13/02/2009, at 3:46 AM, McLean Pickett wrote:
>
>> The CIGESM's are expensive and have limited feature support based on 
>> the way
>> they are deployed in the chassis (you can't channel the NICs on the 
>> blades).
>> They are additional devices to support and every time the server guys 
>> reboot
>> the chassis spanning tree is impacted.
>
> We have lots of IBM chassis with CIGESMs deployed in the wild and are 
> pretty happy with them.  The addition of the L3 Fa port in the 3012 
> and Protected Mode removes all the strange "chassis module" behavior 
> and makes them a pretty normal switch.
>
> From my perspective, the blade chassis is an enclosure that contains 
> servers, a couple of GigE switches and a couple of FC switches.  
> Conceptually, you can view the enclosure as a small rack.  Having 
> server guys just randomly rebooting a chassis would be like having a 
> server guy randomly power cycling a rack.  They would not have a happy 
> day.  Using passthrough module removes the advantages of using the 
> blade chassis IMHO.
>
>
> David
> ...
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