FW: [c-nsp] Cisco Gigabit Ethernet Switch Module (CGESM)fortheHPBladeSystem

[Lincoln Dale]

can't help you on support but ...

regarding your first question, the internal ports are 10/100/1000.  why 
would the 'internal' ports be negotiating 100 Mbps and not GbE?
if the individual blades are only capable of 100 Mbps (not sure if that 
is the case or not..), then are you saying that 'auto-negotiate' on both 
sides (blade & switch) isn't doing the right thing?

regarding your second question, many 'blade centre' chassis, there are 
significant heat dissipation & power restrictions on what can be used.  
i believe this is the most significant factor in the choice of what 
model switch was used.


cheers,

lincoln.

cheers,

lincoln.

christian.macnevin at uk.bnpparibas.com wrote:
> It now seems that our guys testing the CGESMs with the most current 
> feature set are seeing that they don't seem to permit
> manual config of 100/full (and subsequently negotiate down to half in many 
> cases) and they're seeing nasty buffer overruns.
>
> Support doesn't seem to be picking us up here, either.
>
> I assume there's no HP people on this list, but why on earth did they 
> chose a 2900 to repackage? These blade enclosures
> may be used in less than critical arenas by some ISPs, but if I told you 
> the projected number we're looking at over the next year,
> and the seriousness of the calculations going on, you'd think it was a 
> joke they hadn't taken things a bit more seriously.
>
>
>
>
>
>
> Internet
> nick.nauwelaerts at thomson.com
> Sent by: cisco-nsp-bounces at puck.nether.net
> 05/10/2005 08:26
>
> To
> cisco-nsp
> cc
>
> Subject
> RE: FW: [c-nsp] Cisco Gigabit Ethernet Switch Module 
> (CGESM)fortheHPBladeSystem
>
>
>
>
>
>
>   
>> -----Original Message-----
>> From: cisco-nsp-bounces at puck.nether.net
>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Dave Temkin
>> Sent: Tuesday, October 04, 2005 08:17 PM
>> To: Kevin Graham
>> Cc: Olav.Langeland at active24.com; cisco-nsp at puck.nether.net
>> Subject: Re: FW: [c-nsp] Cisco Gigabit Ethernet Switch Module
>> (CGESM)fortheHPBladeSystem
>>
>> I found it's easier to skip spanning tree.  Use etherchannels
>> from each
>> switch back to the core (or wherever) for redundancy, and to get
>> cross-switch redundancy have the servers use fail-on-fault
>> teaming to fail
>> over to the other switch (which would then be connected to
>> your alternate
>> core switch) in the event of a failure.
>>     
>
> Do you run "spanning-tree etherchannel guard misconfig" on your core
> when you use etherchannel links? Does it work as advertised?
>
> // nick
>
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