Relay device and communication network
AssigneeMitsubishi Electric Corporation
InventorToshiyuki NAKAYASU
Life of this patent
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Abstract
A relay device belonging to a communication network includes: a plurality of communication ports to transmit and receive frames; and a reception frequency monitoring unit. The reception frequency monitoring unit monitors a frequency of reception of a control frame with respect to each of the communication ports, the control frame being periodically transmitted into the communication network from a communication device belonging to the communication network. The reception frequency monitoring unit instructs a communication port at which the frequency of reception exceeds a threshold to stop a frame transmission and reception operation.
Claims8
A relay device belonging to a communication network, the relay device comprising:
- a plurality of communication ports to transmit and receive frames;
- and
- a reception frequency monitor
- to monitor a frequency of reception of a control frame with respect to each of the communication ports, the control frame being periodically transmitted into the communication network from a communication device belonging to the communication network, and
- to instruct a communication port at which the frequency of reception exceeds a threshold to stop a frame transmission and reception operation,
- wherein when there is a plurality of communication ports at which the frequency of reception exceeds the threshold, the reception frequency monitoring unit instructs all but one of the plurality of communication ports at which the frequency of reception exceeds the threshold to stop the frame transmission and reception operation.
(canceled)
Dependencies are inferred from the claim text.