Beacon Process

The beacon process is the last chance of ring recovering in case of hardware errors. Beacon frames are sent by an adapter if it doesn't receive any more frames (due to possible input line errors). Beacon frames are sent until the error condition doesn't exist any longer.

Beacon frames contain the address of the next upstream neighbor related the station that send the beacon frames. This enables management stations or protocol analyzers to locate the error.

NIF - Neighbor Information Frames