Transmission equipment, network transmission system, and transmitting method

Claim 2

A transmission equipment with one or a plurality of peripheral devices and a plurality of networks each for executing communications using a frame including destination information connected thereto for relaying frame transmission between said plurality of networks including said one or a plurality of peripheral devices, said transmission equipment comprising: a route storing unit for storing therein route information in correspondence to destination information on each of said networks; a compiling unit for recognizing, when a frame including control data transacted between transmission equipment and between a transmission equipment and a peripheral device is received from said one or said plurality of peripheral devices as well as from said plurality of networks, the control data from said received frame and compiling contents to be stored in said route storing unit according to said recognized control data; a route selecting unit for selecting route information corresponding to the route information included in said received frame including destination information from the route information stored in said route storing unit; and a relaying transmitter for relaying and transmitting said received frame including destination information as it is according to the route information selected by said route selecting unit.

Claim 3

A transmission equipment with a plurality of networks connected thereto for executing communications using a frame including destination information for relaying frame transmission between said plurality of networks comprising: a route storing unit for storing therein route information in correspondence to destination information on each of said networks; a compiling unit for recognizing, when a frame including a routing protocol is received from each of said network, the routing protocol from said received frame and compiling contents to be stored in said route storing unit according to said recognized routing protocol; a route selecting unit for selecting route information corresponding to destination information included in said received frame including destination information from the route information stored in said route storing unit; and a relaying transmitter for relaying and transmitting said received frame including destination information according to said route information selected by the route selecting unit.

Claim 4

A transmission equipment with one or a plurality of peripheral devices and a plurality of networks each for executing communications using a frame including destination information connected thereto for relaying frame transmission between the plurality of networks including said one or said plurality of peripheral devices, said transmission equipment comprising: a route storing unit for storing therein route information in correspondence to destination information on each of said networks; a compiling unit for recognizing, when a frame including ARP is received from said peripheral device, an transmitting IP address of a peripheral device from said received frame and compiling contents to be stored in said route storing unit according to said recognized transmitting IP address for the peripheral device; a route selecting unit for selecting route information corresponding to the destination information included in said received frame including destination information from the route information stored in said route storing unit; and a relaying transmitter for relaying and transmitting said received frame including destination information according to the route information selected by said route selecting unit.

Claim 5

A transmission equipment according to claim 4; wherein said compiling unit comprises: an adding unit for adding, when route information relating to said recognized transmitting IP address is not stored in said route storing unit, said route information to said route storing unit; a measuring unit for measuring passage of a certain period of time in response to an adding operation of said adding unit; and an adding/deleting unit for stopping, when a frame including an ARP is received from said peripheral device according to said route information before said certain period of time measured by said measuring unit has passed, measurement by said measuring unit, and also for deleting, when it is measured by said measuring unit that said certain period of time has passed, contents added by the adding unit from said route storing unit.

Claim 6

A transmission equipment according to claim 5; wherein one or a plurality of other transmission equipment each equivalent to the transmission equipment are included in said plurality of networks, and the compiling unit reports a result of addition by said adding unit and contents deleted by said adding/deleting unit to said other transmission equipment or apparatuses.

Claim 7

A transmission equipment according to claim 5; wherein said compiling unit sends a request type of frame including an ARP to said one or said plurality of peripheral devices before a time measured by the measuring unit reaches said certain period of time.

Claim 8

A transmission equipment according to claim 4; wherein one or a plurality of other transmission equipment each equivalent to the transmission equipment are included in said plurality of networks, and said compiling unit updates, when route information relating to said recognized transmitting IP address is stored in said route storing unit, contents stored in said route storing unit according to a change of connection between the transmission equipment and said peripheral device based on said route information, and also reporting contents of updating to said other transmission equipment or apparatuses.

Claim 9

A transmission equipment with executing communications using a frame including destination information for relaying frame transmission between said plurality of networks comprising: a switch engine for controlling a destination of said frame; a processing unit having a first table storing therein destination information on each of said networks in correspondence to a route information for a destination indicated by said destination information for receiving destination information from said switch engine by using said first table and also supplying route information corresponding to said destination information to said switch engine; and a management unit having a second table storing therein destination information on each of said networks in correspondence to a route for a destination indicated by said destination information; wherein said switch engine comprises: an extracting unit for extracting destination information from said received frame when said frame is received from said networks; a first retrieving unit for retrieving route information corresponding to destination information extracted by said extracting unit from the route information stored in said first table; and a relaying transmitter for relaying and transmitting, when route information is obtained by said first retrieving unit, said received frame as it is according said route information; wherein said management unit comprises: a second retrieving unit for retrieving, when route information is not obtained from said first retrieving unit, route information corresponding to the destination information extracted by said extracting unit from the route information stored in said second table in response to a request from said processing unit; and a registering unit for registering, when route information is obtained by said second retrieving unit, the route information in correspondence to the destination information extracted by said extracting unit.

Claim 10

A transmission equipment according to claim 9; wherein said switch engine comprises a recognizing unit for recognizing, when the frame including a routing protocol is received from the networks, the routing protocol from the received frame; and said management unit comprises a compiling unit for compiling said second table according to the routing protocol recognized by said switch engine.

Claim 11

A transmission equipment according to claim 9; wherein said transmission equipment has one or a plurality of peripheral devices connected thereto, said switch engine comprises a recognizing unit for recognizing, when said frame including an ARP is received from said peripheral device, a transmitting IP address for said peripheral device from said received frame, and said management unit comprises a compiling unit for compiling said second table according to the recognized transmitting IP address for peripheral device by said switch engine.

Claim 12

A network transmission system comprising: a plurality of networks each for executing communications using a frame including destination information, one or a plurality of transmission equipments with said plurality of networks connected thereto for relaying frame transmission between said plurality of networks; wherein said transmission equipment comprises: a route storing unit for storing therein route information in correspondence to destination information for a receiver of frame transmission on said network connected to said transmission equipment; a route selecting unit for selecting, when said frame is received from said networks, route information corresponding to the destination information included in said received frame from the route information stored in said route information storing unit; and a relaying transmitter for relaying and transmitting said received frame according to the route information selected by said route selecting unit.

Claim 13

A network transmission system according to claim 12; wherein said table compiling unit compiles, when the routing protocol recognized from said received frame is a routing protocol spontaneously sent from other transmission equipment to said networks, contents to be stored in said route storing unit according to said routing protocol included in said received frame.

Claim 14

A relaying network system comprising: a plurality of networks each for executing communications using a frame including destination information; and one or a plurality of transmission equipment with a plurality of networks connected thereto each for relaying frame transmission between said plurality of networks; wherein said transmission equipment comprises: a route storing unit for storing therein route information in correspondence to destination information on said networks; a table compiling unit for recognizing, when said frame including a routing protocol is received from said networks, the routing protocol from said received frame and compiling contents to be stored in said route storing unit according to said recognized routing protocol; a route selecting unit for selecting route information corresponding to the destination information included in said received frame including destination information from the route information stored in said route storing unit; and a relaying transmitter for relaying and transmitting said received frame including destination information as it is according to the route information selected by said route selecting unit within said plurality of networks.

Claim 15

A network transmission system according to claim 14; wherein said table compiling unit compiles, when the routing protocol recognized from said received frame is a routing protocol spontaneously sent from other transmission equipment to said networks, contents to be stored in said route storing unit according to said routing protocol included in said received frame.

Claim 16

A network transmission system comprising: a plurality of networks each for executing communications using a frame including destination information; and one or a plurality of transmission equipments with one or a plurality of peripheral devices and said plurality of networks connected thereto each for relaying frame transmission between said plurality of networks including said one or said plurality of peripheral devices; wherein said transmission equipment comprises: a route storing unit for storing therein route information in correspondence to destination information on said networks; a table compiling unit for recognizing, when said frame including an ARP is received from said peripheral device, a transmitting IP address for said peripheral device from said received frame, and compiling contents to be stored in said route storing unit according to the transmitting IP address of said recognized peripheral device; a route selecting unit for selecting route information corresponding to the destination information included in said received frame including destination information from the route information stored in said route storing unit; and a relaying transmitter for relaying and transmitting said received frame including destination information according to the route information selected by said route selecting unit within said plurality of networks.

Claim 17

A transmitting method for connecting a plurality of networks each for executing communications using a frame including destination information and relaying frame transmission between said plurality of networks comprising: a first step for extracting, when said frame is received from said networks, destination information from said received frame; a second step of retrieving, by using the first table in which destination information on said networks is stored in correspondence to route information indicating a route for the destination indicated by the destination information, route information corresponding to the destination information extracted in said first step from the route information stored in said first table; a third step of relaying and transmitting, when route information is obtained in said second step, said received frame as it is according to the route information; a fourth step of retrieving, by using the second table provided separately from said first table in which the destination information on said networks is stored in correspondence to the route information indicating a route for the destination indicated by the destination information, when route information is not obtained in said second step, route information corresponding to the destination information extracted in said first step from the route information stored in said second table; and a fifth data of registering, when route information is obtained in said fourth step, the route information in said first table in correspondence to the destination information extracted in said first step.