Diagnostic module, monitoring method, and storage medium

A diagnostic module for diagnosing a communication module that includes an optical transmitter and receiver including a memory that stores condition information indicating a condition of the optical transmitter and receiver and configured to perform optical communication, and a protocol chip coupled to the optical transmitter and receiver via control signal lines to control the optical communication by the optical transmitter and receiver,

• the diagnostic module comprising a management unit coupled to the optical transmitter and receiver via the control signal lines,
• the management unit is configured to monitor control signals transmitted on the control signal lines, and acquire, based on a result of monitoring, the condition information from the memory of the optical transmitter and receiver at a timing when the protocol chip is not accessing the optical transmitter and receiver,
• wherein
• the control signals include switching signals for switching optical output of the optical transmitter and receiver on and off, and
• the management unit is configured to
• output a second switching signal independent of a first switching signal that is a switching signal transmitted by the protocol chip to the optical transmitter and receiver, and
• control the optical output of the optical transmitter and receiver by a logical operation of the first switching signal and the second switching signal.

A monitoring method performed by a diagnostic module for diagnosing a communication module that includes an optical transmitter and receiver including a memory that stores condition information indicating an condition of the optical transmitter and receiver and configured to perform optical communication, and a protocol chip coupled to the optical transmitter and receiver via control signal lines to control the optical communication by the optical transmitter and receiver, the monitoring method comprising:

• monitoring control signals transmitted on the control signal lines;
• acquiring, based on a result of monitoring, the condition information from the memory of the optical transmitter and receiver at a timing when the protocol chip is not accessing the memory of the optical transmitter and receiver;
• periodically executing check processing of checking sideband signals of the control signals twice at a predetermined time interval;
• and
• determining, when states of the sideband signals are the same, that the protocol chip is not accessing the optical transmitter and receiver to acquire the condition information.

A non-temporary tangible computer-readable storage medium that stores a program causing a computer for diagnosing a communication module, the communication module including an optical transmitter and receiver including a memory that records condition information indicating an condition of the optical transmitter and receiver and configured to perform optical communication;

• and a protocol chip coupled to the optical transmitter and receiver via control signal lines to control the optical communication by the optical transmitter and receiver, the program causing the computer to:
• monitor control signals transmitted on the control signal lines;
• and
• acquire, based on a result of monitoring, the condition information from the memory of the optical transmitter and receiver at a timing when the protocol chip is not accessing the memory of the optical transmitter and receiver;
• periodically execute check processing of checking sideband signals of the control signals twice at a predetermined time interval;
• and
• determine, when states of the sideband signals are the same, that the protocol chip is not accessing the optical transmitter and receiver to acquire the condition information.

A non-temporary tangible computer-readable storage medium that stores a program causing a computer for diagnosing a communication module, the communication module including an optical transmitter and receiver including a memory that records condition information indicating an condition of the optical transmitter and receiver and configured to perform optical communication;

• and a protocol chip coupled to the optical transmitter and receiver via control signal lines to control the optical communication by the optical transmitter and receiver, the program causing the computer to:
• monitor control signals transmitted on the control signal lines, wherein the control signals include switching signals for switching optical output of the optical transmitter and receiver on and off;
• acquire, based on a result of monitoring, the condition information from the memory of the optical transmitter and receiver at a timing when the protocol chip is not accessing the memory of the optical transmitter and receiver;
• output a second switching signal independent of a first switching signal that is a switching signal transmitted by the protocol chip to the optical transmitter and receiver;
• and
• control the optical output of the optical transmitter and receiver by a logical operation of the first switching signal and the second switching signal.

A monitoring method performed by a diagnostic module for diagnosing a communication module that includes an optical transmitter and receiver including a memory that stores condition information indicating an condition of the optical transmitter and receiver and configured to perform optical communication, and a protocol chip coupled to the optical transmitter and receiver via control signal lines to control the optical communication by the optical transmitter and receiver, the monitoring method comprising:

• monitoring control signals transmitted on the control signal lines, wherein the control signals include switching signals for switching optical output of the optical transmitter and receiver on and off;
• acquiring, based on a result of monitoring, the condition information from the memory of the optical transmitter and receiver at a timing when the protocol chip is not accessing the memory of the optical transmitter and receiver;
• outputting a second switching signal independent of a first switching signal that is a switching signal transmitted by the protocol chip to the optical transmitter and receiver;
• and
• controlling the optical output of the optical transmitter and receiver by a logical operation of the first switching signal and the second switching signal.