The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2009
Filed:
Aug. 29, 2005
Tetsuo Imai, Tokyo, JP;
Soichiro Araki, Tokyo, JP;
Tomoyoshi Sugawara, Tokyo, JP;
Norito Fujita, Tokyo, JP;
Tetsuo Imai, Tokyo, JP;
Soichiro Araki, Tokyo, JP;
Tomoyoshi Sugawara, Tokyo, JP;
Norito Fujita, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Disclosed is a network system comprising: a plurality of routersandconnected to each other through a network; pseudo redundant configuration setting meansandwhich are connected respectively to the routers and which perform a communication using a redundancy protocol with respective routers; and association control meansconnected to the pseudo redundant configuration setting meansand, wherein when a serveris a backup server and its backup state needs to be maintained, the pseudo redundant configuration setting meansissues a signal for maintaining a standby state to the router, and when servers are switched between a standby state and operating state, the association control meanstransmits a switching instruction for switching between a standby state and operating state to the pseudo redundant configuration setting meansand
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