Title:
COMMUNICATION SYSTEM AND REDUNDANCY CONFIGURATION METHOD
Document Type and Number:
Japanese Patent JP2016219898
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To satisfy quality required for a service interruption time at the time of failure in a communication system while curbing increase in facility cost as much as possible.SOLUTION: A network interface device 3 determines the priority of restoration during the occurrence of failure in a communication system by type information in a session connection request; for a higher-priority session connection request, evenly distributes active and standby sessions to all of user data transfer devices 2; and for a lower-priority session connection request, evenly distributes active sessions to all of the user data transfer devices 2 and distributes standby sessions to a redundant user data transfer device 2. Active user data transfer devices 2 transfer data according to sessions established in response to the higher-priority session connection request, and transfer session information to another standby user data transfer device 2 and have it keep the session information.SELECTED DRAWING: Figure 1
Inventors:
ABE KAZUHISA
Application Number:
JP2015099625A
Publication Date:
December 22, 2016
Filing Date:
May 15, 2015
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H04W24/04; H04L45/58; H04W88/14
Attorney, Agent or Firm:
Ken Hashizume
Previous Patent: A control method of a display and a display, and a program
Next Patent: An imaging device, an imaging method, and a program
Next Patent: An imaging device, an imaging method, and a program