Title:
COMMUNICATION SYSTEM AND SERVER SWITCHING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/159941
Kind Code:
A1
Abstract:
The present invention reduces service interruption time for a client terminal. A communication system 100 is provided with: a plurality of servers 10 (10a, 10b) each serving as an active system server or a stand-by system server; and a relay device 20 that relays communication between the active system server and one or more client terminals 30 operated by clients. Each server has: a priority determination unit that determines the priority of each client; a virtual port creation unit that creates, in the server, a virtual port corresponding to a virtual LAN assigned to each client terminal; and a communication processing unit that instructs the relay device to change, to the virtual ports, the destinations of the communication performed between the server and the client terminals. When a problem occurs in another server serving as the active system server, the communication processing unit issues an instruction to change the communication destination in descending order of client priority.
Inventors:
KITANO TAKEHIRO (JP)
Application Number:
PCT/JP2019/005022
Publication Date:
August 22, 2019
Filing Date:
February 13, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04L45/247; G06F13/00; H04L12/28; H04L45/02
Foreign References:
| JP2017130852A | 2017-07-27 | |||
| US20140204761A1 | 2014-07-24 | |||
| JP2017038218A | 2017-02-16 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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