WO2001091392A1 - Network for data transfer - Google Patents

Network for data transfer Download PDF

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Publication number
WO2001091392A1
WO2001091392A1 PCT/FI2001/000462 FI0100462W WO0191392A1 WO 2001091392 A1 WO2001091392 A1 WO 2001091392A1 FI 0100462 W FI0100462 W FI 0100462W WO 0191392 A1 WO0191392 A1 WO 0191392A1
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WO
WIPO (PCT)
Prior art keywords
data
network
switch
data switch
transfer
Prior art date
Application number
PCT/FI2001/000462
Other languages
French (fr)
Inventor
Kari Innala
Original Assignee
Fulcrum Laboratories Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fulcrum Laboratories Ag filed Critical Fulcrum Laboratories Ag
Priority to DE20180399U priority Critical patent/DE20180399U1/en
Priority to EP01934046A priority patent/EP1287653A1/en
Priority to AU6036301A priority patent/AU6036301A/en
Priority to US10/296,257 priority patent/US7583679B2/en
Priority to AT0905401U priority patent/AT7325U1/en
Priority to CA2410605A priority patent/CA2410605C/en
Priority to AU2001260363A priority patent/AU2001260363B2/en
Publication of WO2001091392A1 publication Critical patent/WO2001091392A1/en
Priority to NO20025622A priority patent/NO20025622D0/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/355—Application aware switches, e.g. for HTTP

Definitions

  • the object of the invention is a data transfer network for data transfer and data processing comprising one or more transfer channels and data switches connected to each other by means of these transfer channels.
  • the data transfer networks comprise terminal devices, servers, routers, and various data switches connected to the transfer channel.
  • the terminal devices are usually intended for receiving information from the network and for presenting it to the user and/or for transmitting the data inputted by the user to the terminal device to the network.
  • the servers are usually used for storing data and/or for processing it.
  • the purpose of the routers is to transmit further the data received from a terminal device or from a server to an upper level router and/or transmit further the data received from an upper level router to a server or to a terminal device.
  • the terminal devices can be connected directly to the servers or the connection is made by using a local area network.
  • the transfer channel between two terminal devices in a data transfer network comprises different wired and wireless transfer channels connected to each other by means of servers, routers, and data switches.
  • the network is formed to a star or a tree in such a way that the terminal devices are in connection with each other by means of a local area network, servers, and routers.
  • the network can also be formed of star-like parts com ected to each other.
  • the connections from one terminal device to another are usually formed by means of servers and routers.
  • the users take a connection with their terminal devices to the server of the service provider by means of the network and the devices thereof.
  • the forming of the connection even between two neighboring terminal devices has to be done usually through the server of the service provider, because the service is available generally only on the server of the service provider. This leads easily to the congestion of the network and therefore to the lengthening of the response times. To reduce this disadvantage e.g.
  • proxy- servers are used especially for storing the data used often or most recently.
  • the corresponding data can be stored in its own intermediate memory.
  • the data stored in this way has not, however, the same content as the corresponding data retrieved from the server and therefore the terminal devices and the servers have to be controlled in such a way that they update the stored data every now and then.
  • all the data switches of the network are fast and intelligent and that every one of them can function as servers, routers, and/or generally as data switches for the data transferred in the network.
  • a fast data switch is meant data switches having a switching time of less than 1 ms for setting up a connection.
  • the data to be transferred and processed consists of transferring in addition to data and control data also transferring data for carrying out different services.
  • Such services can be e.g. telephone connections, television programs, video pictures, video conferencing, Internet-connections or other such services utilizing data communication. These services are connected to the network through interface means in the data switches.
  • the transfer channels between the two data switches are provided one or more transfer channels to which the data switches are connected through interface means.
  • the data switches preferably are provided with means for recognizing the type of the data coming from the transfer channel and with means for choosing a transfer channel on the basis of the presentation mode and/or the transfer mode of the data transmitted through the data switch.
  • the transfer channels between the two data switches can in a preferred embodiment of the invention at least one be a wireless transfer channel.
  • Other transfer channels can be e.g. copper cables, optical fibers, coaxial cables or other corresponding transfer channels suitable for data transfer.
  • the network according to the invention is provided preferably with one or more transfer channels between the data switches depending on the sort of the data to be transferred and/or the service provided, on the protocols used in the data transfer and on the amount of the data transferred.
  • the data switch is also provided with means for selecting a transfer channel of several possible transfer channels between the data switches preferably e.g. based on the loading of the transfer channels or on another control data transmitted to the data switch and/or generated on the basis of the control data by using the means of the data switch.
  • the data switches are comiected to each other one after another so that they form a chain in which every data switch is connected to at most two other data switches.
  • at least one data switch is connected to more than two other data switches preferably e.g. for creating a backup connection between the data switches of the network.
  • two or more data switches can be connected in parallel for securing the switching operation.
  • a data transfer network it is possible to connect directly at least one terminal device to at least one data switch.
  • These connectable terminal devices are preferably e.g. printers, display terminal devices, workstations, or other terminal devices intended for the use of the user.
  • to every data switch of the network can be connected at least one terminal device intended for the user.
  • the terminal device is connected to the data switch in a preferred embodiment of the invention by using interfacing means either in the terminal device or in the data switch.
  • the said data switch acts as a server.
  • the local area network and the data switch are connected 5 to each other by using suitable interfacing means.
  • the said local area network is provided preferably with one or several terminal devices.
  • the data switches of the network are provided with interfacing means for interfacing the transfer protocols used in the network and/or in the terminal devices and/or in the local area network to each other.
  • the data switches of the network are provided with means for having preferably a continuous connection with each other through the network for sensing the state of the network.
  • every data switch of the network is 20 provided with means for identifying, controlling, and/or steering the state of the input and output ports of this data switch and with means for transmitting the data describing these states to at least one other data switch of the network.
  • Every data switch is also provided with means for transmitting further the data describing the states of the input and output ports of the other switches connected to data switch to 25 at least one other data switch of the network.
  • the data switch transmits of the data describing the states of its input and output ports and/or of the corresponding data of the other data switches received by it only the data defined to be deviating.
  • the data switches are preferably provided with means for comparing the data describing the states of these ports to values defined in 30 advance or to values received by the data switch through the network.
  • any data switch in the network can be connected means for following the state of the network and the state of the chosen data switches of the network.
  • the data switch for controlling the operation of the data switch of the network in addition to the data contained by the data switch also the data sent by a terminal device in connection with the network and/or the data included in the data received by the data switch are used.
  • the data switch is provided with means for combining the data sent to the data switch, and/or the data intended to be transmitted further, and the data contained in the data switch for controlling the operation of the data switch.
  • the data switch is provided with means for composing data for controlling the operation of at least another data switch on the basis of the data contained in the first data switch, the data sent to the first data switch and the data transmitted further by the first data switch and with means for transmitting the data so composed and intended to be used for controlling another data switch either as a separate control data or by combining the said control data to a data to be transmitted further.
  • the operation of the data switches can be controlled on the basis of the data transmitted by them preferably e.g. in such a way that the data switch in receiving packaged or zipped data in order to transmit it further and in observing that the next data switch will transmit the data received further in packaged or zipped form, transmits further the packaged data received by it without unpackaging or unzipping it.
  • the data switch of the network generates a data transfer connection between a terminal device or terminal devices connected to this data switch, and/or a local area network connected to this data switch, or one or more terminal devices connected to local area networks connected to this data switch and another data switch of the network for transmitting the data or control data transmitted by this second data switch to the first data switch and/or to a terminal device connected to it.
  • the terminal device is connected to the data, control data and/or service needed or demanded by it preferably e.g. to that data switch which is nearest to the terminal device and which uses or transmits further the said data, control data and/or service.
  • the data switch is provided with means for generating a connection between a terminal device, and/or a local area network connected to it, and/or its terminal device and the data, control data and/or service transmitted further by the data switch.
  • one or more data switches are provided with means for editing the data transmitted by it e.g. for encrypting or packaging the data and/or unpacking or deciphering it.
  • the data switches are preferably provided with means, which on the basis of the control data received by the data switch and/or included in the data transmitted further by the data switch bring about the said editing.
  • one or more of the data switches are provided with means for forming a so-called firewall for controlling the data communication through the data switch and for a possible filtering. Still in a preferred embodiment of the invention at least one data switch is provided with means for detecting data detrimental to the operation of the network, to any means of the network, or to any means connected to it, such as data viruses, and means for preventing the further transmitting of such data.
  • the network according to the invention is suitable preferably e.g. for an internal network of a company or corresponding unit (intranet), for a network between two or more companies or corresponding units (extranet), for a common data transfer network, or for a combination of some or all of them.
  • Intranet an internal network of a company or corresponding unit
  • extranet a network between two or more companies or corresponding units
  • common data transfer network or for a combination of some or all of them.
  • Fig. 1 shows a principal illustration of a part of the data transfer network according to the invention
  • Fig. 2 shows another example of a part of the network according to the invention.
  • the data switches of the data transfer system are referenced by reference numbers la, lb, and lc and with reference numbers 2a, 2b, and 2c the transfer channels between the data switches la and lb, which transfer channels are connected with interfacing means to the data switches la and lb.
  • the interfacing means in the data switches la, lb, and lc make possible in a preferred embodiment of the invention both the transmitting and the receiving of the data.
  • To the data switch la is connected a terminal device 3 a having means for connecting the terminal device 3 a to the data switch la for transmitting and/or receiving data.
  • the data switch la is provided with means for connecting the terminal device to the transfer channel 2b of the data transfer network.
  • the data switch lb is also provided with means for connecting the data coming from the transfer channel 2b to the data switch lb and for further transmitting the data through the data switch lb to the transfer channel 20b.
  • the corresponding arrangement is also in the data switch lc for further connecting the data coming from the transfer channel 20b to the transfer channel 21b.
  • the transfer channel 20b is connected to the data switch lc with the interfacing means in the data switch lc.
  • the terminal device 3c is connected with interfacing means to the data switch lc and through the data switch lc to the transfer channel 20b for transmitting and/or receiving data. In this way between the terminal devices 3 a and 3 c is formed a data transfer connection which is two-way in a preferred embodiment of the invention.
  • the interfacing means in the data switches la and lb interface the data transfer protocols used by the terminal devices 3 a and 3 c to be conformal with the data transfer protocols used by the transfer channels 2b and 20b.
  • the interfacing means in the data switches lb and lc interface the data through these data switches to be conformal with the protocol in the transfer channels 2b, 20b, and 21b.
  • the same transfer protocol is used in the transfer channels 2b, 20b, and 21b. Still in another preferred embodiment of the invention this protocol is the same that the terminal devices 3 a and 3 c are using when transmitting and receiving data.
  • Fig. 2 is illustrated another example of a part of the network according to the invention.
  • the terminal device 3e is a transmitter transmitting a television program to which terminal device a connection from the terminal device 3a has been formed in the way described above through the data switches lb, lc, and Id and through the transfer channels 2a, 20a, 21a, and 22a. Between the data switches la, lb, lc, Id, and le there can be several different transfer channels but for simplicity in this example only one of these has been illustrated.
  • this program is desired to be watched from the terminal device 3b connected to the data switch lb, it is not necessary in a data transfer network according to the invention to generate a new connection through the data switches lb, lc, and Id from the terminal device 3b to the terminal device 3e, but in the data switch lb, a connection can be formed from the terminal device 3 b to the data stream incorporating the television program passing through the data switch lb.
  • the terminal device 3e is e.g. an Internet server to which from both the terminal device 3 a and the terminal device 3b a connection is desired to be formed.
  • the data switch lb detects that such data is transferred through it which the terminal device 3b connected to this data switch lb is asking.
  • the connection from the terminal device 3b to this service provided by the terminal device 3e is formed in the data switch lb that diminishes both the loading of the network and the loading of the terminal device providing the service, in the example the loading of the terminal device 3e.
  • a local area network 31c is connected to the data switch lc with suitable interfacing means 30c to which local area network several terminal devices can be connected. From the terminal devices of this local area network 31c and the terminal devices connected to it a connection through the data switch lc can be formed to any service comiected to the network in the way described above.

Abstract

The object of the invention is a data transfer network for data transfer and data processing comprising one or more transfer channels (2a, 2b, 2c, 20a, 20b, 20c, 21a, 21b, 21c, 22a) and data switches (1a, 1b, 1c, 1d, 1e) connected to each other by means of these transfer channels (2a, 2b, 2c, 20a, 20b, 20c, 21a, 21b, 21c, 22a). All the data switches (1a, 1b, 1c, 1d, 1e) of the network are fast and intelligent and every one of them can function as a server, a router, and/or as a data switch for the data being transferred in the network.

Description

Network for data transfer
The object of the invention is a data transfer network for data transfer and data processing comprising one or more transfer channels and data switches connected to each other by means of these transfer channels.
Usually the data transfer networks comprise terminal devices, servers, routers, and various data switches connected to the transfer channel. The terminal devices are usually intended for receiving information from the network and for presenting it to the user and/or for transmitting the data inputted by the user to the terminal device to the network. The servers are usually used for storing data and/or for processing it. The purpose of the routers is to transmit further the data received from a terminal device or from a server to an upper level router and/or transmit further the data received from an upper level router to a server or to a terminal device. The terminal devices can be connected directly to the servers or the connection is made by using a local area network. The transfer channel between two terminal devices in a data transfer network comprises different wired and wireless transfer channels connected to each other by means of servers, routers, and data switches.
Usually the network is formed to a star or a tree in such a way that the terminal devices are in connection with each other by means of a local area network, servers, and routers. The network can also be formed of star-like parts com ected to each other. The connections from one terminal device to another are usually formed by means of servers and routers. Usually the users take a connection with their terminal devices to the server of the service provider by means of the network and the devices thereof. The forming of the connection even between two neighboring terminal devices has to be done usually through the server of the service provider, because the service is available generally only on the server of the service provider. This leads easily to the congestion of the network and therefore to the lengthening of the response times. To reduce this disadvantage e.g. in the Internet the so-called proxy- servers are used especially for storing the data used often or most recently. In the terminal devices the corresponding data can be stored in its own intermediate memory. The data stored in this way has not, however, the same content as the corresponding data retrieved from the server and therefore the terminal devices and the servers have to be controlled in such a way that they update the stored data every now and then.
It is characterizing to the known networks also that the servers, routers, and data switches used in them are each dedicated and suitable for performing generally only one for them characteristic function in the network. Further it is characterizing to the known networks that they are controlled and their function is monitored centrally from certain connections dedicated to the control or monitoring.
It is characterizing to the invention that all the data switches of the network are fast and intelligent and that every one of them can function as servers, routers, and/or generally as data switches for the data transferred in the network. In a preferred embodiment of the data transfer network according to the invention by a fast data switch is meant data switches having a switching time of less than 1 ms for setting up a connection.
In a preferred embodiment of the network according to the invention the data to be transferred and processed consists of transferring in addition to data and control data also transferring data for carrying out different services. Such services can be e.g. telephone connections, television programs, video pictures, video conferencing, Internet-connections or other such services utilizing data communication. These services are connected to the network through interface means in the data switches.
In a preferred embodiment of the invention between two data switches are provided one or more transfer channels to which the data switches are connected through interface means. The data switches preferably are provided with means for recognizing the type of the data coming from the transfer channel and with means for choosing a transfer channel on the basis of the presentation mode and/or the transfer mode of the data transmitted through the data switch. Of the transfer channels between the two data switches can in a preferred embodiment of the invention at least one be a wireless transfer channel. Other transfer channels can be e.g. copper cables, optical fibers, coaxial cables or other corresponding transfer channels suitable for data transfer.
The network according to the invention is provided preferably with one or more transfer channels between the data switches depending on the sort of the data to be transferred and/or the service provided, on the protocols used in the data transfer and on the amount of the data transferred.
In a preferred embodiment of the invention the data switch is also provided with means for selecting a transfer channel of several possible transfer channels between the data switches preferably e.g. based on the loading of the transfer channels or on another control data transmitted to the data switch and/or generated on the basis of the control data by using the means of the data switch.
In a preferred embodiment of the invention the data switches are comiected to each other one after another so that they form a chain in which every data switch is connected to at most two other data switches. In another preferred embodiment of the invention in the network at least one data switch is connected to more than two other data switches preferably e.g. for creating a backup connection between the data switches of the network. Still in another preferred embodiment of the invention two or more data switches can be connected in parallel for securing the switching operation.
In a data transfer network according to the invention it is possible to connect directly at least one terminal device to at least one data switch. These connectable terminal devices are preferably e.g. printers, display terminal devices, workstations, or other terminal devices intended for the use of the user. In a preferred embodiment of the invention to every data switch of the network can be connected at least one terminal device intended for the user. The terminal device is connected to the data switch in a preferred embodiment of the invention by using interfacing means either in the terminal device or in the data switch. W
In another data transfer network according to the invention it is possible to connect to at least one data switch at least one local area network, for which network the said data switch acts as a server. The local area network and the data switch are connected 5 to each other by using suitable interfacing means. In a preferred embodiment of the invention it is possible to connect to every data switch of the network at least one local area network. The said local area network is provided preferably with one or several terminal devices.
10 In a preferred embodiment of the network according to the invention the data switches of the network are provided with interfacing means for interfacing the transfer protocols used in the network and/or in the terminal devices and/or in the local area network to each other.
15 It is characterizing to the network according to the invention that the data switches of the network are provided with means for having preferably a continuous connection with each other through the network for sensing the state of the network.
Further it is characterizing to the invention that every data switch of the network is 20 provided with means for identifying, controlling, and/or steering the state of the input and output ports of this data switch and with means for transmitting the data describing these states to at least one other data switch of the network. Every data switch is also provided with means for transmitting further the data describing the states of the input and output ports of the other switches connected to data switch to 25 at least one other data switch of the network. In a preferred embodiment of the invention the data switch transmits of the data describing the states of its input and output ports and/or of the corresponding data of the other data switches received by it only the data defined to be deviating. The data switches are preferably provided with means for comparing the data describing the states of these ports to values defined in 30 advance or to values received by the data switch through the network. In a preferred embodiment of the invention to any data switch in the network can be connected means for following the state of the network and the state of the chosen data switches of the network.
In a preferred embodiment of the invention for controlling the operation of the data switch of the network in addition to the data contained by the data switch also the data sent by a terminal device in connection with the network and/or the data included in the data received by the data switch are used. In a preferred embodiment of the invention the data switch is provided with means for combining the data sent to the data switch, and/or the data intended to be transmitted further, and the data contained in the data switch for controlling the operation of the data switch. In another preferred embodiment of the invention the data switch is provided with means for composing data for controlling the operation of at least another data switch on the basis of the data contained in the first data switch, the data sent to the first data switch and the data transmitted further by the first data switch and with means for transmitting the data so composed and intended to be used for controlling another data switch either as a separate control data or by combining the said control data to a data to be transmitted further.
According to a preferred embodiment of the invention the operation of the data switches can be controlled on the basis of the data transmitted by them preferably e.g. in such a way that the data switch in receiving packaged or zipped data in order to transmit it further and in observing that the next data switch will transmit the data received further in packaged or zipped form, transmits further the packaged data received by it without unpackaging or unzipping it.
According to a preferred embodiment of the invention the data switch of the network generates a data transfer connection between a terminal device or terminal devices connected to this data switch, and/or a local area network connected to this data switch, or one or more terminal devices connected to local area networks connected to this data switch and another data switch of the network for transmitting the data or control data transmitted by this second data switch to the first data switch and/or to a terminal device connected to it. In this preferred embodiment of the invention the terminal device is connected to the data, control data and/or service needed or demanded by it preferably e.g. to that data switch which is nearest to the terminal device and which uses or transmits further the said data, control data and/or service. In this preferred embodiment it is not necessary to generate a connection up to the data switch or terminal device producing the data, control data and/or service which diminishes the loading of the network and the loading of the terminal device and/or data switch producing data, control data and/or service. In a preferred embodiment of the invention the data switch is provided with means for generating a connection between a terminal device, and/or a local area network connected to it, and/or its terminal device and the data, control data and/or service transmitted further by the data switch.
In a preferred embodiment of the invention one or more data switches are provided with means for editing the data transmitted by it e.g. for encrypting or packaging the data and/or unpacking or deciphering it. The data switches are preferably provided with means, which on the basis of the control data received by the data switch and/or included in the data transmitted further by the data switch bring about the said editing.
Further in another preferred embodiment of the invention one or more of the data switches are provided with means for forming a so-called firewall for controlling the data communication through the data switch and for a possible filtering. Still in a preferred embodiment of the invention at least one data switch is provided with means for detecting data detrimental to the operation of the network, to any means of the network, or to any means connected to it, such as data viruses, and means for preventing the further transmitting of such data.
The network according to the invention is suitable preferably e.g. for an internal network of a company or corresponding unit (intranet), for a network between two or more companies or corresponding units (extranet), for a common data transfer network, or for a combination of some or all of them. The invention is described in more detail by referring to the accompanying drawings in which
Fig. 1 shows a principal illustration of a part of the data transfer network according to the invention and
Fig. 2 shows another example of a part of the network according to the invention.
In the figures like reference numbers are used for like parts.
In Fig. 1 the data switches of the data transfer system are referenced by reference numbers la, lb, and lc and with reference numbers 2a, 2b, and 2c the transfer channels between the data switches la and lb, which transfer channels are connected with interfacing means to the data switches la and lb. The interfacing means in the data switches la, lb, and lc make possible in a preferred embodiment of the invention both the transmitting and the receiving of the data. To the data switch la is connected a terminal device 3 a having means for connecting the terminal device 3 a to the data switch la for transmitting and/or receiving data. The data switch la is provided with means for connecting the terminal device to the transfer channel 2b of the data transfer network. The data switch lb is also provided with means for connecting the data coming from the transfer channel 2b to the data switch lb and for further transmitting the data through the data switch lb to the transfer channel 20b. The corresponding arrangement is also in the data switch lc for further connecting the data coming from the transfer channel 20b to the transfer channel 21b. The transfer channel 20b is connected to the data switch lc with the interfacing means in the data switch lc. The terminal device 3c is connected with interfacing means to the data switch lc and through the data switch lc to the transfer channel 20b for transmitting and/or receiving data. In this way between the terminal devices 3 a and 3 c is formed a data transfer connection which is two-way in a preferred embodiment of the invention. The interfacing means in the data switches la and lb interface the data transfer protocols used by the terminal devices 3 a and 3 c to be conformal with the data transfer protocols used by the transfer channels 2b and 20b. Correspondingly the interfacing means in the data switches lb and lc interface the data through these data switches to be conformal with the protocol in the transfer channels 2b, 20b, and 21b. In a preferred embodiment of the invention the same transfer protocol is used in the transfer channels 2b, 20b, and 21b. Still in another preferred embodiment of the invention this protocol is the same that the terminal devices 3 a and 3 c are using when transmitting and receiving data.
In Fig. 2 is illustrated another example of a part of the network according to the invention. In this example the terminal device 3e is a transmitter transmitting a television program to which terminal device a connection from the terminal device 3a has been formed in the way described above through the data switches lb, lc, and Id and through the transfer channels 2a, 20a, 21a, and 22a. Between the data switches la, lb, lc, Id, and le there can be several different transfer channels but for simplicity in this example only one of these has been illustrated. If this program is desired to be watched from the terminal device 3b connected to the data switch lb, it is not necessary in a data transfer network according to the invention to generate a new connection through the data switches lb, lc, and Id from the terminal device 3b to the terminal device 3e, but in the data switch lb, a connection can be formed from the terminal device 3 b to the data stream incorporating the television program passing through the data switch lb. In a corresponding way can be proceeded if the terminal device 3e is e.g. an Internet server to which from both the terminal device 3 a and the terminal device 3b a connection is desired to be formed. The data switch lb detects that such data is transferred through it which the terminal device 3b connected to this data switch lb is asking. The connection from the terminal device 3b to this service provided by the terminal device 3e is formed in the data switch lb that diminishes both the loading of the network and the loading of the terminal device providing the service, in the example the loading of the terminal device 3e.
In Fig. 2 a local area network 31c is connected to the data switch lc with suitable interfacing means 30c to which local area network several terminal devices can be connected. From the terminal devices of this local area network 31c and the terminal devices connected to it a connection through the data switch lc can be formed to any service comiected to the network in the way described above.

Claims

Claims
1. A data transfer network for data transfer and processing comprising one or more transfer channels (2a, 2b, 2c, 20a, 20b, 20c, 21a, 21b, 21c, 22a) and data switches (la, lb, lc, Id, le) connected to each other by means of these transfer channels, characterized in that every data switch (la, lb, lc, Id, le) of the network is a server, a router, and/or a data switch for the data to be transferred in the network.
2. Network according to claim 1, characterized in that at least one data switch (la, lb, lc, Id, le) of the network is connected by means of one or more transfer channels (2a, 2b, 2c, 20a, 20b, 20c, 21a, 21b, 21c, 22a) to at most two other data switches (la, lb, lc, Id, le) of the network.
3. Network according to claim 1, characterized in that every data switch (la, lb, lc, Id, le) of the network is provided with means for recognizing at least one type of data to be transferred coming from the transfer channel (2a, 2b, 2c, 20a, 20b, 20c, 21a, 21b, 21c, 22a) connected to the data switch (la, lb, lc, Id, le).
4. Network according to claim 3, characterized in that every data switch (la, lb, lc, Id, le) of the network is provided with means for selecting one or more transfer channels (2a, 2b, 2c, 20a, 20b, 20c, 21a, 21b, 21c, 22a) connected to the data switch (la, lb, lc, Id, le) on the basis of the type of the data to be transferred.
5. Network according to claim 1, characterized in that every data switch (la, lb, lc, Id, le) is provided with means for connecting at least one terminal device (3a, 3b,
3 c, 3 e) to the network by means of the data switch (la, lb, lc, Id, le).
6. Network according to claim 1, characterized in that every data switch (la, lb, lc, Id, le) is provided with means for connecting at least one local area network (31c) to the network by means of the data switch (la, lb, lc, Id, le).
7. Network according to claim 1, characterized in that at least one data switch (la, lb, lc, Id, le) is provided with means for detecting continuously the state of the input and/or output ports of this data switch (la, lb, lc, Id, le).
8. Network according to claim 6, characterized in that the data switch (la, lb, lc, Id, le) is provided with means for transmitting the data describing the state of the input and/or output ports of the data switch (la, lb, lc, Id, le) to at least one other data switch (l , lb, lc, Id, le) of the network.
9. Network according to claim 6 or 7, characterized in that at least one data switch (la, lb, lc, Id, le) is provided with means for continuously detecting the state of the network on the basis of the states of the data switches (la, lb, lc, Id, le) and the states of their input and/or output ports.
10. Network according to claim 8, characterized in that at least one data switch (la, lb, lc, Id, le) is provided with means for controlling at least one other data switch (la, lb, lc, Id, le) of the network on the basis of the states of the data switches of the network and the states of their input and/or output ports.
11. Network according to claim 1, characterized in that the data switches (la, lb, lc, Id, le) of the network control the transfer of data in the network, which data is simultaneously transferred in the network and complies to several different data transfer protocols.
12. Network according to any preceding claim, characterized in that the network is provided with at least one data switch (la, lb, lc, Id, le) for forming a connection from a terminal device (3 a, 3 b, 3 c, 3 e) connected to it and/or from a local area network (31c) connected to it and/or from a terminal device of the local area network (31c) connected to it to any data, control data, or service transferred through this data switch (la, lb, lc, Id, le) at every time.
PCT/FI2001/000462 2000-05-26 2001-05-14 Network for data transfer WO2001091392A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE20180399U DE20180399U1 (en) 2000-05-26 2001-05-14 Network for data transmission
EP01934046A EP1287653A1 (en) 2000-05-26 2001-05-14 Network for data transfer
AU6036301A AU6036301A (en) 2000-05-26 2001-05-14 Network for data transfer
US10/296,257 US7583679B2 (en) 2000-05-26 2001-05-14 Network for data transfer
AT0905401U AT7325U1 (en) 2000-05-26 2001-05-14 NETWORK FOR DATA TRANSMISSION
CA2410605A CA2410605C (en) 2000-05-26 2001-05-14 Network for data transfer
AU2001260363A AU2001260363B2 (en) 2000-05-26 2001-05-14 Network for data transfer
NO20025622A NO20025622D0 (en) 2000-05-26 2002-11-22 Data transfer network

Applications Claiming Priority (2)

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FIU20000221 2000-05-26
FI20000221U FI4638U1 (en) 2000-05-26 2000-05-26 Communications Network

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EP (1) EP1287653A1 (en)
CN (1) CN1440611A (en)
AT (1) AT7325U1 (en)
AU (2) AU2001260363B2 (en)
CA (1) CA2410605C (en)
DE (1) DE20180399U1 (en)
FI (1) FI4638U1 (en)
NO (1) NO20025622D0 (en)
WO (1) WO2001091392A1 (en)

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US20030123458A1 (en) 2003-07-03
DE20180399U1 (en) 2003-03-13
AU2001260363B2 (en) 2007-01-04
NO20025622L (en) 2002-11-22
AU6036301A (en) 2001-12-03
FI4638U1 (en) 2000-09-29
CA2410605A1 (en) 2001-11-29
EP1287653A1 (en) 2003-03-05
AT7325U1 (en) 2005-01-25
CN1440611A (en) 2003-09-03
NO20025622D0 (en) 2002-11-22
US7583679B2 (en) 2009-09-01
CA2410605C (en) 2011-01-04

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