This flags whether the station recorded in this row is physically attached to the same segment as this port (local) or was learned here only because it's reachable through this port to a segment elsewhere (remote). An admin uses this to distinguish genuine end-devices on this port's wire from devices merely routed/switched through it, refining what cat2600TsPortLocalStations and cat2600TsPortRemoteStations already summarize at an aggregate level. Seeing an address marked remote(2) on what's supposed to be a simple end-user access port could indicate an unexpected downstream hub or switch daisy-chained off that port.