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:
Jun. 23, 2009
Filed:
Dec. 30, 2004
Takehiro Nabae, Kawasaki, JP;
Takehiro Nabae, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A communication network system includes: a plurality of lower hierarchy networks, each having a plurality of first relay apparatuses; and an intermediate hierarchy network having a plurality of second relay apparatuses for connecting the plurality of lower hierarchy networks via the second relay apparatuses at the edge position line-connected to the first relay apparatuses at the edge position. Each of the first relay apparatuses has a first routing table that holds information limited to routing information corresponding to the first relay apparatus and routing information on at least one of the first relay apparatuses and the second relay apparatuses in the edge positions that come into an adjacent state. Each of the second relay apparatuses has a second routing table that holds information including routing information on at least one of the second relay apparatuses and the first relay apparatuses in the edge positions that come into an adjacent state.