[c-nsp] HP/Cisco Spanning Tree

Brian Desmond brian at briandesmond.com
Thu Aug 16 17:26:33 EDT 2007


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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