[c-nsp] MST Experiences: was Re: Dell switches (specifically PowerConnect 7048P) and Ciscos

[Kis-Hegedűs Gábor]

Hi,

We use MSTP with VTPv3. It's quite good if your topology is simple but you have a lot of VLANs. Before we used a lot of STP instances, now we use two of them:)

Also on the Cisco 2960 series platform you have an STP instance limit of 128.

Br,
Gabor

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Gert Doering
Sent: Wednesday, November 28, 2012 10:46 AM
To: Saku Ytti
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] MST Experiences: was Re: Dell switches (specifically PowerConnect 7048P) and Ciscos

Hi,

On Wed, Nov 28, 2012 at 11:13:02AM +0200, Saku Ytti wrote:
> But for completely other (numerous) reasons, we're ditching whole L2 
> and rocking MPLS end to end.

Yeah.  We see to it that our L2 STP domains are very small (if we can avoid it, no more than 4-6 devices each), and we need to go cross-city, it's EoMPLS instead of "STP + L2 all across the core".

But our business is very much different from yours - less customers, and much more customized setups for each customer.  We *do* have VLAN assignment conventions, and all that, of course :-) - but at least once a month we need to do something that's an exception for some reason - and then I'm quite happy not having to fiddle with MST vlan mapping.

gert

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Gert Doering - Munich, Germany                             gert at greenie.muc.de
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