Title:
NETWORK SYSTEM, CONTROLLER, AND QoS CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2012/098774
Kind Code:
A1
Abstract:
When networks composed of regular switches exist between communication paths, QoS cannot be controlled with respect to users in the networks. Specifically, a switch receives packets and notifies an external controller, and a user authentication unit of the controller determines the QoS policy of the flow. When a plurality of networks exists between paths, a path calculation unit selects a path based on the QoS policy and topology information in such a manner that the path is routed through the optimum network. When a flow table generation unit transmits packets to the selected network, a flow table, which performs queuing and marks DSCP values to the DS field of a header, is generated on the basis of the QoS policy, and the flow table for a round trip is registered to a switch.
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Inventors:
EHARA Koji (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2011/078066
Publication Date:
July 26, 2012
Filing Date:
December 05, 2011
Export Citation:
Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 〒1088001, JP)
International Classes:
H04L12/56
Attorney, Agent or Firm:
KUDOH Minoru (6F KADOYA BLDG, 24-10 Minamiooi 6-chome, Shinagawa-k, Tokyo 13, 〒1400013, JP)
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