[c-nsp] Dell switches (specifically PowerConnect 7048P) and Ciscos

Brandon Ewing nicotine at warningg.com
Wed Nov 28 10:45:14 EST 2012


On Tue, Nov 27, 2012 at 03:22:27PM -0500, Chuck Church wrote:
> Just curious, is the VLAN mapping to instances the big issue you guys have
> with MST?  In our deployments we used pretty large ranges to cover growth,
> and mapped purposes such as L2-only VLANs (no SVI), servers, users, VoIP,
> etc into separate instances, worked pretty solidly.   Except when Nexus
> changes the mappings on you because some are reserved that is...
> 
> Chuck
> 

In our last test in the datacenter environment, we had deployed MSTP
according to Cisco recommended practices (pre-map all vLANs).  This wasn't a
large issue to us, as we really only have 2 paths through our datacenter
fabric.

However, on the Dell side, with the PowerConnect 5324s we tested, mapping a
vLAN to an MSTP instance attempted to create the vLAN on the Powerconnect.
This was a non-starter, and we stopped evaluating the platform.  The test we
did crashed the Powerconnect as it attempted to create 4000+ vLANs at once.

-- 
Brandon Ewing                                        (nicotine at warningg.com)
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