Patent ID: 11902035
Assignee: YOKOGAWA ELECTRIC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. An information processing device comprising:
a memory storing a program; and
one or more processor by executing the program to realize:
a communication controller that performs communication using a first communication method and using a second communication method that whose communication speed is higher than the first communication method;
a first equalizer;
a second equalizer; and
a determiner that uses the first communication method and determines whether or not other information processing device has adapted the second communication method,
wherein the first equalizer performs a first equalization of data and operating condition of an application for processing using the first communication method through a first network interface with respect to a first information processing device in a redundancy system in which redundancy is achieved between the first information processing device and the information processing device as a second information processing device using the first communication method through the first network interface, and
after the first equalization is completed by the first equalizer, the second equalizer
performs a second equalization of data and operating condition of the application for processing using the second communication method with respect to a third information processing device, and
builds a redundancy system in which the second information processing device and the third information processing device are used,
the determiner
performs negotiation using the first communication method through the first network interface, and
determines whether or not the third information processing device has adapted the second communication method,
in a case where it is determined that the third information processing device has adapted the second communication method, the second equalization is performed using the second communication method through a second network interface between the second information processing device and the third information processing device, and
in a case where it is determined that the third information processing device has not adapted the second communication method, the second equalization is performed using the first communication method through the first network interface between the second information processing device and the third information processing device.