发明名称 |
Vlan control system and method |
摘要 |
<p>A VLAN control system is provided, which comprises: a remote access server (301), connected to a home network (200) in the VLAN having a global network (400), 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 (601; 602), 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 (700), 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. <IMAGE></p> |
申请公布号 |
EP0812086(A3) |
申请公布日期 |
2005.07.20 |
申请号 |
EP19970401283 |
申请日期 |
1997.06.06 |
申请人 |
NIPPON TELEGRAPH ANDTELEPHONE CORPORATION |
发明人 |
TANIMOTO, SHIGEAKI;NAKAJIMA, HIKOYUKI;ISODA, KUNIHIKO;NAGAI, KOUICHI;MASUI, TAKASHI |
分类号 |
H04L12/46;H04L29/06;H04L29/12;(IPC1-7):H04L12/46 |
主分类号 |
H04L12/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|