Patent Number: 7,710,962

Title: Packet forwarding apparatus and method for multicast packets

Abstract: The present invention provides a technology for processing packets, such as VoIP packets, with priority. A priority-designating unit designates priority information based on header information. A pointer searching unit refers to a pointer table to obtain pointer information corresponding to a destination address. A sorting unit sorts the pointer information into a high-priority queue and a low-priority queue according to the priority information. A next queue holds pointer information obtained from a destination information table. A scheduler extracts and outputs the pointer information from each queue in the following order of priority: the next queue, a high-priority queue, and a low-priority queue. A destination-information-table searching unit obtains destination information and/or the pointer information from the destination information table based on the pointer information, and outputs the destination information to a packet forwarding and duplicating unit and outputs the pointer information to the next queue.

Inventors: Kodama; Yasuhiro (Yokohama, JP), Sugai; Kazuo (Hadano, JP), Akahane; Shinichi (Hachioji, JP), Yano; Hiroki (Ebina, JP), Okano; Kaoru (Ebina, JP), Kumita; Naoya (Yokohama, JP)

Assignee: Alaxala Networks Corporation

International Classification: H04L 12/28 (20060101); H04L 12/56 (20060101)

Expiration Date: 5/04/12018