First time poster, I apologize if I am in the wrong place. I also inherited the configuration of this network... so be gentle.
I currently have 5 sites which are connected with a L2 service from our provider. We use a single VLAN (the default one, with the ID changed to 1000) which spans all 5 routers. The VLAN has a L3 interface bound to it, all in the same address space.
I recently discovered that we have a single RSTP instance, with one of the routers obviously serving as the root bridge. This is not what the previous administrator believed was happening, but it is unfortuantely so. I would like to make it so that the core router at each site is the root bridge for that site, and also that we aren't spamming BPDU's on our WAN connection. I understand STP fairly well, but I am not sure of the effect of having that VLAN in each of these sites.
Can I just disable the RSTP on each of the interfaces that connect the sites, and set the local router to have a bridge prioroty of 0?
We are running ex4600's (as the routers) at 2 of the sites, and ex4200's for the routers at the other 3.
I don't need any specific configuration help, I am just asking more as a general information question. Is there any way to make each of these sites it's own RSTP instance with the same VLAN at all 5 sites?
Thanks for any help you guys are willing to give.