We have several independent Mikrotiks deployed across a resort town, each running its own hotspot.
As the number of sites has increased, managing them all has gotten to be quite a headache.
I’ve been considering the use of a centralized hotspot server, and converting the individual sites into tunnel endpoints.
In order to eliminate the usual problems with a single large broadcast domain, we would use split horizon on a bridge interface of the central hotspot Mikrotik, as well as some basic bridge filtering at the individual sites to eliminate wasted throughput on the tunnels themselves.
My question is this - what sort of tunnelling protocol would be the most scalable as far as CPU resources on the concentrator/hotspot Mikrotik? I’ve built this for one site using an EoIP tunnel, but am concerned that after only a dozen or so sites, the centralized box would be getting its CPU hammered. (we have hundreds of sites currently)
Would the use of MRRU+BCP+PPP+L2TP be less resource intensive than simply creating EoIP tunnels?