Title:
NETWORK SYSTEM, SWITCH, AND CONNECTION TERMINAL DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2012/137646
Kind Code:
A1
Abstract:
In an open flow network, it is specified which port number of which node device is connected to a terminal that is connected to a node device group, using only the port number (port information) and the source MAC address (Source MAC) of a packet transmitted from a terminal. Specifically, a node device compares a port number and source MAC address (Source MAC) pair of the packet sent from the terminal to the node device, and a port number and MAC address information pair held in a pre-stage search table, and confirms agreement (a match). When there is no agreement (a match), the node device notifies a control device using an inquiry information (Packet-in) function of overflow. Furthermore, the node device compares the destination MAC address (Destination MAC) information of the packet and the MAC address information held in a post-stage search table, and confirms whether there is agreement (a match).
Inventors:
OIKAWA SEIJI (JP)
TAKASHIMA MASANORI (JP)
TAKASHIMA MASANORI (JP)
Application Number:
PCT/JP2012/058150
Publication Date:
October 11, 2012
Filing Date:
March 28, 2012
Export Citation:
Assignee:
NEC CORP (JP)
OIKAWA SEIJI (JP)
TAKASHIMA MASANORI (JP)
OIKAWA SEIJI (JP)
TAKASHIMA MASANORI (JP)
International Classes:
H04L12/28; H04L45/42; H04L45/02
Foreign References:
| JP2009239625A | 2009-10-15 | |||
| JP2003324468A | 2003-11-14 | |||
| JP2011082765A | 2011-04-21 |
Other References:
OPENFLOW SWITCH SPECIFICATION, VERSION 1.0.0, 31 December 2009 (2009-12-31), Retrieved from the Internet
See also references of EP 2696537A4
See also references of EP 2696537A4
Attorney, Agent or Firm:
KUDOH Minoru (JP)
Minoru Kudo (JP)
Minoru Kudo (JP)
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Claims:
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