MST

[jeansamarani]

Hello,

we are planning to setup a network as per the attached design. I would like to know if there will any conflict or Interoperability issue between the different stp mode running on the different switches.

thanks

Jean

[Giuseppe Larosa]

Hello Jean,

it should be fine MST is backward compatible with PVST on a per port basis

the links have to be 802.1Q trunks to be able to detect a PVST neighbor

you need to make the MST the root bridge for all vlans.

see

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/50sg/configuration/guide/spantree.html#wp1083304

Hope to help

Giuseppe