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. 07, 2016
Filed:
Oct. 07, 2014
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Hitoshi Kuwata, Tsuchiura, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A first L2SW acquires a correspondence relation between a multicast group and a representative IP address retained in a snooping table of a second L2SW through a control plane, and registers the correspondence relation to a snooping table of the first L2SW. When the first L2SW receives a multicast packet whose destination is a multicast group, the first L2SW extracts a corresponding representative IP address of the other L2SW based on the snooping table of the first L2SW, and converts the multicast packet into a unicast packet whose destination is the extracted representative IP address. When the destination representative IP address contained in the unicast packet is its own representative IP address, the second L2SW converts the unicast packet into multicast packets.