PVST to MST migration

[anilfernandes]

Hi,

We have a layer 2 switched network that is currently PVST. We are looking at migration to MST.

Can you please provide and design notes/ guides for a PVST to MST migration.

Also in the MST design, if I make changes to vlans (add/delete) does STP recalculate for all the vlans in a single MST instance. ? Each vlan in this scenario is a different customer. I would like not to impact all customers in a single MST instance everytime we make changes.

Are there any docs that mention the overheads (processing, cpu) that MST puts in a switched environment ?

Any pointers will be much appreciated.

Anil

[amit-singh]

Hi,

Please go through the link and will answer your questions.

http://www.cisco.com/en/US/partner/products/hw/switches/ps708/products_configuration_guide_chapter09186a008007fb18.html#wp1076368

HTH

Amit Singh

[anilfernandes]

Thanks for the link.

This says "MISTP uses one BPDU for each MISTP instance, rather than one for each VLAN, as in PVST+"

Does this mean all vlans in the single instance will undergo convergence if one vlan is added/ deleted in that instance.?

Regards,

Anil

[dsalekin]

I have a CCO account but can't open this page! Is there another link or can you email me the pdf?

thanks,

Dan

[amit-singh]

It was a partner link.

You will be able to open it now.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a008007fb18.html#wp1076368

regards

-amit singh