[c-nsp] HP/Cisco Spanning Tree

Roy r.engehausen at gmail.com
Thu Aug 16 16:01:56 EDT 2007


Thanks.  I don't think thats possible on these very old switches.  I
think I will try switching to MST

I did make one error in my previous post.  This is a 3560 not a 3550.

Roy

Conaway, Aaron wrote:
> 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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