Strip frame recognition apparatus

A strip frame recognition apparatus in a station of a token ring local area network for recognizing a received frame as a strip frame which has been transmitted from the station, the strip frame recognition apparatus comprising:

• transmitter means for transmitting a frame to the network, the transmitter means including strip address extraction means for extracting a strip address from a predetermined field of every frame from the station,
• retention means for retaining the strip address extracted by the strip address extraction means,
• receiver means for receiving a frame from the network, the receiver means including information extraction means for extracting information corresponding to a strip address from every frame received from the network, and
• coincidence detection means for comparing, for every frame received from the network, the information extracted by the information extraction means with the strip address retained in the retention means, detecting coincidence between the information and the strip address, and judging by detection of the coincidence that the received frame is the strip frame.