[walrus01]

It might look like a mesh on a topology diagram but believe me, it has nothing in common with wireless "mesh" networking... I don't have insight into the exact configuration of webpass' routers but they're undoubtedly using fairly ordinary BGP and OSPF between nodes. The wireless links are exclusively high capacity point-to-point trunks.

[dsl]

It is not "mesh wireless" gear, but it is a mesh at the routing layer (ECMP). My old building had PtP wireless to multiple other buildings.

Edit: I always speculated the difference between 100Mbps and 200Mbps on-net buildings was if that particular location was multihomed.