Information processing device, information processing system, notification method, and storage medium

1. An information processing device comprising:

a processor, configured to:

acquire statistical information about communication with another machine connected by a cable;

determine an abnormality in the communication with reference to the statistical information; and

notify a master device of a determination result of the abnormality when the determination result indicates that the communication is abnormal,

wherein the statistical information comprises a number of short frames and a number of frames over a maximum length, and

wherein the processor determines that the communication is abnormal due to noise according to the number of short frames, the number of frames over the maximum length, and a time average of a total number of the number of short frames and the number of frames over the maximum length.

2. The information processing device according to claim 1 , wherein the statistical information further comprises:

a number of normal frames which is a number of normal frame receptions; and

a number of abnormal frames which is a number of abnormal frame receptions.

3. The information processing device according to claim 2 , wherein the processor determines that the communication is abnormal when the number of abnormal frames within a predetermined unit time exceeds a predetermined threshold value.

4. The information processing device according to claim 1 , wherein the statistical information further comprises a link-off count, and

the processor determines that the communication is abnormal due to a cable abnormality when a ratio of a link-off count in a unit time immediately before one unit time to a link-off count in the one unit time is equal to or less than a first threshold value.

5. The infoiiiiation processing device according to claim 4 , wherein the processor is further configured to:

acquire a user input related to setting of the first threshold value; and

set the first threshold value with reference to the user input.

6. The information processing device according to claim 1 ,

wherein the processor determines that the communication is abnormal due to noise, when a value of a Poisson distribution formula is equal to or less than a second threshold value with an increase in the number of short frames and the number of frames over the maximum length being a random variable value, and the time average of the total number of the number of short frames and the number of frames over the maximum length being a parameter.

7. The information processing device according to claim 6 , wherein the processor is further configured to:

acquire a user input related to setting of the second threshold value; and

set the second threshold value with reference to the user input.

8. An information processing system comprising a master device and a slave device connected to the master device by a cable,

wherein the slave device comprises a processor configured to:

acquire statistical information about communication with the master device via a network;

determine an abnoii iality in the communication with reference to the statistical information; and

notify the master device of a determination result of the abnormality, when the determination result indicates that the communication is abnormal,

wherein the statistical information comprises a number of short frames and a number of frames over a maximum length, and

wherein the processor determines that the communication is abnormal due to noise according to the number of short frames, the number of frames over the maximum length, and a time average of a total number of the number of short frames and the number of frames over the maximum length.

9. A notification method executed in an information processing device, comprising:

acquiring statistical information about communication with another machine connected by a cable;

determining an abnormality in the communication with reference to the statistical information; and

notifying a master device of a determination result of the abnormality, when the determination result indicates that the communication is abnormal,

wherein the statistical information comprises a number of short frames and a number of frames over a maximum length, and

wherein the communication is deteiixiined to be abnormal due to noise according to the number of short frames, the number of frames over the maximum length, and a time average of a total number of the number of short frames and the number of frames over the maximum length.

10. A non-transitory computer readable storage medium, storing an information processing program for causing a computer to:

acquire statistical information about communication with another machine connected by a cable;

determine an abnormality in the communication with reference to the statistical information; and

notify a master device of a determination result of the abnormality, when the determination result indicates that the communication is abnormal,

wherein the statistical information comprises a number of short frames and a number of frames over a maximum length, and

wherein the communication is determined to be abnormal due to noise according to the number of short frames, the number of frames over the maximum length, and a time average of a total number of the number of short frames and the number of frames over the maximum length.

11. The information processing device according to claim 2 , wherein the statistical information further comprises a link-off count, and

the processor determines that the communication is abnormal due to a cable abnormality when a ratio of a link-off count in a unit time immediately before one unit time to a link-off count in the one unit time is equal to or less than a first threshold value.

12. The information processing device according to claim 3 , wherein the statistical infon iation further comprises a link-off count, and

the processor determines that the communication is abnormal due to a cable abnoiniality when a ratio of a link-off count in a unit time immediately before one unit time to a link-off count in the one unit time is equal to or less than a first threshold value.

13. The information processing device according to claim 2 ,

wherein the processor determines that the communication is abnormal due to noise, when a value of a Poisson distribution formula is equal to or less than a second threshold value with an increase in the number of short frames and the number of frames over the maximum length being a random variable value, and the time average of the total number of the number of short frames and the number of frames over the maximum length being a parameter.

14. The information processing device according to claim 3 ,

wherein the processor determines that the communication is abnormal due to noise, when a value of a Poisson distribution formula is equal to or less than a second threshold value with an increase in the number of short frames and the number of frames over the maximum length being a random variable value, and the time average of the total number of the number of short frames and the number of frames over the maximum length being a parameter.

15. The information processing device according to claim 4 ,

wherein the processor determines that the communication is abnoiinal due to noise, when a value of a Poisson distribution formula is equal to or less than a second threshold value with an increase in the number of short frames and the number of frames over the maximum length being a random variable value, and the time average of the total number of the number of short frames and the number of frames over the maximum length being a parameter.

16. The information processing device according to claim 5 ,

the processor deteiiiiines that the communication is abnormal due to noise, when a value of a Poisson distribution formula is equal to or less than a second threshold value with an increase in the number of short frames and the number of frames over the maximum length being a random variable value, and the time average of the total number of the number of short frames and the number of frames over the maximum length being a parameter.