Title:
METHOD AND DEVICE FOR FAULT TOLERANT CONNECTION OF COMPUTER SYSTEM TO LOCAL AREA NETWORK
Document Type and Number:
Japanese Patent JP2583023
Kind Code:
B2
Abstract:
PURPOSE: To provide the fault tolerant connection of a network by turning one of controllers to a communication path to the network and specifying the other as a backup by a server connected to a pair of network controllers.
CONSTITUTION: A LAN 10 is provided with a CPU 12 functioning as a network server and the network uses an 'Ethernet(R)' protocol. The CPU 12 is provided with processor units 14a and 14b, they are connected to one another and inter- processor communication is performed by buses 16a and 16b. The CPU 14 is provided with I/O buses 20a and 20b. Also, the LAN controllers 26 and 28 of dual ports are connected to the I/O buses 20a and 20b and the controllers 26 and 28 are respectively connected through LAN hubs 32 and 34 to the LAN hubs 32 and 34. The controller 26 functions as a primary, the controller 28 functions as the backup and all the communication is performed through the controllers 26 and 28.
Inventors:
KEUIN JEI ROOETSUTO
Application Number:
JP25063794A
Publication Date:
February 19, 1997
Filing Date:
October 17, 1994
Export Citation:
Assignee:
TANDEM COMPUTERS INC
International Classes:
G06F11/20; G06F13/00; (IPC1-7): H04L12/28; G06F13/00; G06F15/16; H04L12/44
Domestic Patent References:
| JP63236433A |
Other References:
【文献】米国特許4527270(US,A)
【文献】欧州特許出願公開416943(EP,A)
【文献】欧州特許出願公開416943(EP,A)
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)