Our network is a ring with fiber optic. We have one 3560X per branch, they are connected with OSPF and ip segment /30.
The problem is that we are going to add switch 3560X on the ring, and they are not stackable, there will be a trunk between the two swither... So I have two routers ospf (3560X) to distribute the same network.... I made a test with packet tracer, it seems I need to put "passive-interface vlan x (data) where there will be one 3560X, and have to disable this CLI on the two 3560X that are connected in trunk and distribute the same data networks...
Is this a good way ?
There is a map of part of the network in attached piece.
Thanks for your help !