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:
Apr. 17, 2018
Filed:
Mar. 02, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Ryu Kobayashi, Kanazawa, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A network system includes a plurality of first communication apparatuses that perform multicast routing, and a plurality of second communication apparatuses configured to connect between the plurality of first communication apparatuses and forward a multicast packet from a port other than a receiving port. Each one of the plurality of second communication apparatuses includes a first memory configured to store the receiving port at which an entry request for a multicast group sent by one of the plurality of first communication apparatuses has been received as a forward port for multicast packets for that multicast group, and a forwarding unit configured to forward a multicast packet for the multicast group from the forward port among the ports of the second communication apparatus.