Multiplex communications – Network configuration determination
Patent
1997-06-06
2000-06-13
Nguyen, Chau
Multiplex communications
Network configuration determination
370338, 370401, H04L 1228
Patent
active
060757760
ABSTRACT:
A VLAN control system is provided, which comprises: a remote access server, connected to a home network in the VLAN having a global network, for controlling communication between any moved terminal and the home network with reference to a management table for indicating a location of each terminal under connection; a remote access client, connected to each remote network, for controlling communication between the remote network and the global network with reference to a management table for indicating a correspondence relationship between each terminal which is connected to the remote network and the home network; and a VLAN management server, connected to the global network, for managing packet transmission and the location of each terminal with reference to a management table for indicating a correspondence relationship between each terminal and the remote access server and for indicating a location of each terminal under connection. In the control system, disconnection of a terminal which has been moved to a remote network is detected, without any special function at the terminal side, based on timing information of a packet transmitted from the terminal or connection information if the terminal is further moved to another remote network. A VLAN control method corresponding to the above system is also provided.
REFERENCES:
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S. Tanimoto, et al., "Logical Office Service", Articles of NTT Multimedia Networks Laboratories, pp. 987-996, 1996.
T. Hariu, et al., "Logical Office Service: A Mobile VLAN Service for a Mobile Computing Environment", Proceedings of 1997 Asia-Pacific Symposium on Information and Telecommunication Technologies (APSITT '97), pp. 1.5.1-1.5.5, Mar. 13, 1997.
Y. Shigyo, et al., "A Study on Address Resolution for Virtual LAN", Proceedings of the 1996 IEICE General Conference, p. 241, Mar. 28-31, 1996 .
Isoda Kunihiko
Masui Takashi
Nagai Kouichi
Nakajima Hikoyuki
Tanimoto Shigeaki
Nguyen Chau
Nguyen Kim T.
Nippon Telegraph and Telephone Corporation
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