[c-nsp] HP/Cisco Spanning Tree

[Conaway, Aaron]

>From what I've read, the Catalyst 3020 for the blade chassis is vastly,
vastly superior.  Money, however, is an object, so tripling the price of
the module didn't sit well with the approving authorities.

Oh, well...guess they'll have to live with the outages and downtime on
the whole network because they didn't want to spend the money.

-----
Aaron Conaway

-----Original Message-----
From: Brian Desmond [mailto:brian at briandesmond.com] 
Sent: Thursday, August 16, 2007 5:27 PM
To: Conaway, Aaron; Roy; cisco-nsp at puck.nether.net
Subject: RE: Re: [c-nsp] HP/Cisco Spanning Tree

HP does sell a Cisco built switch module for the blade chassis - might
be worth the extra expense. I have had issues with the HP branded ones
as well from the previous generation of blades and switching to Cisco
built modules made life way easier.

Thanks,
Brian Desmond
brian at briandesmond.com

c - 312.731.3132


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Conaway, Aaron
> Sent: Thursday, August 16, 2007 2:47 PM
> To: Roy; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] HP/Cisco Spanning Tree
>
> Roy:
>
> We just turned up an HP GbE2c switch for a blade chassis on a Cisco-
> only
> LAN and saw the same thing.  The fall from glory was the fact that
> Cisco
> does PVST and that the HP uses a single instance of STP for all VLANs.
> The solution for us was to turn up a mess of STP groups on the HP --
> one
> for each VLAN.  That fixed it right up.
>
> -----
> Aaron Conaway
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Roy
> Sent: Thursday, August 16, 2007 2:14 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] HP/Cisco Spanning Tree
>
> I have to integrate a new Cisco 3550 into an existing network based
> mostly on older HP Procurve units. Multiple VLANs are involved. When I
> enabled spanning tree, the whole network seems to seize. I suspect
some
> sort of problem due to the default PVST. I guess I need to switch to
> MST. Does anyone have any experience in this configuration?
>
> Roy
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