Virtual LAN system
AssigneeMatsushita Electric Works, Ltd.
InventorsHiroyoshi Yuasa, Tadashi Satake, Mario Jose Cardona, Hisataka Fujii, Akira Yasuda, Koji Yamashita, Satoru Suzaki, Hideki Ikezawa, Masami Ohno, Akira Matsuzaki, Junichi Suzuki, Junko Nakano
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Abstract
A virtual LAN system forms a virtual group which is based on elements having physical attribute or logical attribute and constituting a virtual LAN, sets a client address and priority of the virtual group in a virtual group registration table, and allocates unicast and broadcast traffic bands in group units.
Claims26
A virtual LAN system, comprising:
- a virtual group based on elements having a physical attribute or a logical attribute and constituting a virtual LAN;
- a client address and priority of the virtual group set in a virtual group registration table;
- unicast and broadcast traffic bands allocated in group units;
- and
- a port segment switching system including:
- one or more switching hubs having a plurality of switching hub ports, a packet being transmitted and received in microsegment units to which the switching hub ports belong;
- wherein the virtual group of which members are the microsegment units to which the switching hub ports belong function as a virtual repeater;
- and
- wherein the switching hub ports are combined arbitrarily so as to set a common microsegment to the plurality of switching hubs.
A virtual LAN system including a virtual group agent having a virtual group registration table and a virtual group learning circuit;
- wherein the virtual group agent forms a virtual group for each terminal based on characteristics of a packet without adding an extra header or tag to the packet and independently of LAN switch ports, sets a client address and priority of the virtual group in the virtual group registration/routing table, and allocates unicast and multicast traffic bands in group units;
- wherein the virtual group agent executes dynamic automatic configuration management for a terminal move by the virtual group learning circuit;
- wherein the virtual group agents have the virtual group registration/routing table in which the different virtual groups in network management and network service are formed in a virtual network into a plurality of segments;
- the virtual group agents customize the network management and the network service dynamically in coordination with users in response to user demands;
- wherein connection ports of the virtual groups are distributed to a plurality of switches distributed over a network;
- the virtual group registration/routing table and the virtual group agents are placed in the switches in a distributed manner;
- utilities comprising building automation utilities of air conditioning, lighting, and security, etc.;
- are segmented into the virtual groups;
- and the virtual group registration/routing table distributed to the switches is managed dynamically;
- the virtual group agents coordinate with each other in response to a request for setting a virtual network related to resource use of a different system from the user;
- and
- wherein a network service of customizing the utilities and automatic configuration for a user is executed.
Dependencies are inferred from the claim text.