CN1146108A - Data network controlling method using telephone network or computer internet - Google Patents

Data network controlling method using telephone network or computer internet Download PDF

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CN1146108A
CN1146108A CN 96105249 CN96105249A CN1146108A CN 1146108 A CN1146108 A CN 1146108A CN 96105249 CN96105249 CN 96105249 CN 96105249 A CN96105249 A CN 96105249A CN 1146108 A CN1146108 A CN 1146108A
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network
data
node
control
information
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CN1048840C (en
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谢麟振
韩乃骞
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Peking University
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Peking University
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Abstract

Wired telephone network, radio telephone network, Internet network or their virtual subnetwork is used as control network in controlling data network of several nodes and multiband shared mode. This structure has the features of the data network with flexible, very -large capacity data transmission function, and the control network, which is indepdendent of data network, can expand its network management function via control terminal according to the change in node and job number, and may be constituted with available telephone network or Internet network. The present invention reduces the complexity and raise the reliability in network control.

Description

Method with telephone network or computer interconnection network management data net
The invention belongs to the communication network technology field.
In wavelength division multiplexing type (carrier wave of data message can be light wave or electromagnetic wave) multi-service data network technology, network is made of a plurality of nodes, node in the network can distribute one or several wavelength to be used to transmit data, perhaps some node only is used to receive data, and does not send the function of data.Each node receives The data and fixes or tunable filter: under the situation of light carrier, can adopt FP chamber, grating or mark to account for moral interferometer etc.; Under the situation of electric carrier wave, adopt the fixing or tunable optic filter of LC oscillator form.Data network adopts the wavelength division multiplexing type structure of shared physical transfer media, the function of setting up and removing data circuit must be arranged on the data network, the transmission of data could normally be carried out between node, and the foundation of data circuit and dismounting realize by control or management information.
The control method of the data network of existing wavelength division multiplexing type has following several form: the first is used same wavelength earlier, promptly transmits the carrier wave that high-speed data information is used, and transmits the contact information of low speed, behind the access success, sets up data circuit and carries out transfer of data; It two is to adopt microwave-subcarrier signal to transmit network control message, promptly uses the control information modulated microwave, and with data message common modulation transmitting terminal emission source, receiving terminal takes out control information by demultiplexing to the microwave that will have control information again as subcarrier; It three is the modes that adopt the data message common modulation emission source of the control information of low code check and high code check, and receiving terminal takes out data and control information more respectively; It four is with an independent special control information transmission of wavelength.The common feature of these four kinds of methods is that data message and control information are all transmitted on a kind of physical transfer media.
The data volume that following data network transmits is very big, and the data transmission rate of individual node can be in several GB/S magnitudes or higher.Under high like this data transfer rate, in same channel, transmit the control information of low rate again, if use with the same carrier wave that transmits data and come communicating control information, by question-response, set up data circuit earlier, like this since node to get in touch with before sending out data, data to be sent will be waited for certain hour, therefore at transmitting terminal jumbo memory will be arranged, this must increase the expense of network, also has long shortcoming of Call Waiting time simultaneously.If adopt other three kinds of methods of introducing above, these three kinds of methods all are on same physical transfer media control channel to be separated with data channel, its deficiency is: the combination modulation of microwave-subcarrier signal wherein and low code check and high code check all is a complicated technology, adopt this dual mode, when the node of data network increases, the management function expansion trouble of control net, and when the transport service of network changes, also might influence the operate as normal of control channel, promptly data network just has some requirement for restriction to the business that can transmit on its network; And with an independent special control information transmission of wavelength, be about to have the passage that transmits the high speed information ability and only be used to transmit low speed information, thereby network cost is improved, this scheme is also uneconomical.
Characteristics of the present invention are: the data channel that will transmit high-speed data information is separated with transmission low speed control information control channel.The version of dual-network is adopted in networking, and this will overcome all deficiencies that exist in the original wavelength division multiplexing type network of network administrative skill well.Its specification requirement is simple, and the Call Waiting time that data circuit is set up is short, and because the control net is independent and by computer control, its Network Management Function can change according to the needs of business or the variation of network configuration easily.This scheme can utilize existing mature technology to realize that working stability is reliable.The expense of this formula investing is little at last, is convenient to promote the use of.
The particular content of invention is as follows.
The network data channel part:
A plurality of nodes can be formed star, annular, tree-like, total linear and these four kinds mixing graphic data nets that basic topological structure is formed.Node in the network can distribute one or several wavelength, is used for other node data information to network, and perhaps some node only is used for receiving data information, and does not send the function of data message.Node is with fixing or the tunable optic filter receiving data information.The physical transfer media of this wavelength division multiplexing type multi-service data net can be wired optical fiber, cable or wireless data network.This network can transmit several data business even analog signal, as phone, TV signal or these professional certain several combinations of computer data, digital telephone, Digital Television and simulation.
Fig. 1 is the optical wavelength-division multiplex type data network structural representation of ring topology, this figure is an example with the network of eight nodes, whole network system is by data channel 1,3 and control channel 4 form, data channel is made of with data channel 1 and backup data channel 3 main again, and the physical transfer media of data channel is an optical fiber.The twin nuclei that Fig. 1 adopts is convenient to carry out the self-healing join operation when there is breakpoint in data network, to recover the operate as normal of network.
Fig. 2 is the data terminal structural representation of annular data network node, each node transmission and acknowledge(ment) signal process are as follows in the data network: send data messages as node N by modulated laser 6, be adopted as the light carrier of wavelength fn, modulated wave enters data network 1 by 2*2 coupler 7.The data message of other node is respectively by different wave length f1, f2 in the network ... transmit as carrier wave, when arriving node N place, be divided into two-way by 2*2 coupler 7, the node of leading up to continues to transmit, and another road receives for this node tunable receiver 8.Node N is according to the requirement of its control unit, with its receiver be tuned on the transmission wavelength (for example fm) of a certain specific node, to receive needed data message.The self-healing function of data network is as shown in Figure 1: when there is breakpoint 7 in ring network, adjacent with breakpoint 7 two nodes such as Fig. 1 node 7 and node 8, self-healing coupling arrangement 9 by separately connects main data channel 1 and backup data channel 3, finishes the self-healing join operation.
The network control channel part:
Wavelength division multiplexing type multi-service data net must have powerful and perfect Network Management Function.That control channel of the present invention partly adopts is existing, cable telephone network, radiotelephony network or the INTERNET net of technology maturation, perhaps the virtual subnet in three kinds of networks is formed the control net, virtual subnet--the logical subnetwork the in-public telecommunication network, be to utilize public telecommunication network to set up logic to connect the network that forms by the Standard User network interface, it makes public network that the service ability identical with the private network performance can be provided for big user group, can also be for these users provide a whole set of controllable calling, the performance of monitoring and management.Call out and to set up rapidly between the user in the virtual subnet net, and by modulator-demodulator, it has the function of data call, can provide the following data of several K or tens KB/S to transmit.
With control channel and data channel separately, as shown in Figure 1, control channel is connected in control net switching center by the control terminal of each node and constitutes, and forms a control net that is independent of data network.Specifically being constructed as follows of control net:
By a small-sized wired stored-program control exchange or wireless stored-program control exchange or hub, each node on the data network is connected on switch or the hub, constitute a wired or wireless telephone network, perhaps INTERNET net.Perhaps rent data channel, to set up the particular virtual subnet of contact user (each node on the data network) to public telecommunication network (cable telephone network, radiotelephony network or INTERNET net).Under the situation of telephone network, distribute to telephone number of each node in order to distinguish each node; Under the situation of INTERNET net, distribute to address number of each node.Multi-service management and the needed control information of node transceive data on the data network are under the control of each nodal terminal, by the control network transmission.
The network system of data network is to carry out under the control of the network management software, and management software is used for starting the internodal circuit of data network to be set up, line disconnection, and start transmission, receiving element work and under the looped network situation, finish self-healing function.
Have the node of transmission and receiving function, its control terminal management process is summarized as follows:
When a certain node 2 need send data to node 6 in the network, as shown in Figure 1, passed through the state of control channel query node 6 control terminals earlier by the control terminal of node 2, promptly whether node 6 is receiving data.Below handle in two kinds of situation.
1, if it is idle that node 6 receives, then node 2 is notified the data of node 6 receiving nodes 2 immediately, node 6 its data of control are accepted the tunable receiver of unit, be tuned to the wavelength of node 2, data are accepted in preparation, and network supervisor is revised the state parameter of node 6 simultaneously, and expression node 6 receives " doing ".Node 2 sends according to finishing, and node 6 detects the data termination flag, promptly changes the state parameter of its node, makes it to put reception " spare time ", and promptly node 6 nodes can receiving data information.
2, if node 6 is busy, the state of just continuous query node 6 nodes of the control terminal of node 2 is accepted data up to node 6 and is finished, and its acceptance is in idle condition.Carry out the operation of above-mentioned " 1 " again.
If the topological structure of data network is an annular, as shown in Figure 1 and Figure 2, two-way ring can have the function of self-healing.Finish and swing to the corresponding hypervisor of function automatically and need accomplish: when a certain section of network breaks down, find abort situation by operation self-healing hypervisor, and the optical switch that starts the node at abort situation two ends moves, make original dicyclo become monocycle, make network can continue operate as normal.
According to following dual mode, determine to exist on the circuit open circuit fault, and carry out the self-healing program.Under the native system situation, during the fracture of tentation data circuit somewhere, control Netcom news are still intact.
Mode 1: as shown in Figure 1, during the data of node 6 receiving nodes 2, signal illegally interrupts, and does not receive that promptly the expression data send the identity code that finishes.
Node 6 at first proposes conferencing function to the switching center of control net, and even dry contact can be communicated by letter simultaneously.Then node 6 send to this node of forward data 2 to 6 of nodes each node---node 2, node 1, node 8 and node 7 (by the data message sending direction) please be sent out test signal.Each node receives the test signal of each node on the data network by tunable receiver, and reception condition is passed through control channel 4 notify nodes 6, node 6 notices are wherein received the node (as the node among Fig. 1 8) of zero (as the node among Fig. 1 7) and all node test signals of front, finish the self-healing join operation by light shutter device.
Mode 2: node 2 requesting nodes 6 receive request of data and are accepted by node 6, but node 6 can not obtain the data message that node 2 transmits, and promptly the data circuit between the node 2 and 6 has breakpoint.
The control and treatment step of node 6 is identical with " mode 1 ".
Introduce two embodiment below with telephone network and INTERNET net management data network:
1, adopt the dual-network version under the telephone network do control net situation, as shown in Figure 3.
With the network with eight nodes is example, and data network can be formed various topological structures.Control net composition mode is as follows: distribute to telephone number of each node, be used to distinguish each node.The control of intelligent terminal of each node is connected on the small program-control exchanger by modulator-demodulator, and formation one is independent of the control net of data network.Also can replace the control net, thereby realize the networking of long distance by the virtual subnet in the telecommunications network.This switch has off-hook, dialing, and ring, on-hook, busy tone is met busy please staying and conference telephone capabilities.These functions are used to realize that two internodal circuits are set up on the data network, dismounting and the self-healing function under the looped network situation etc.The mode that whole network using distributes and controls, the status equalization of each node.The sending and receiving of the control information of management data net, and control corresponding operation all realize that control information transmits by telephone network under the control of the network management software.The running of network management is seen above-mentioned " network control channel part ".
2, adopt the dual-network version under the INTERNET net do control net situation, as shown in Figure 4.
With the network with eight nodes is example, and data network can be formed various topological structures, and its structure is not drawn on figure.Control net composition mode is as follows: distribute address digit of each node, be used to distinguish each node.The control of intelligent terminal of each node is connected on 8 Subscriber Line Concentrators by network interface card, and formation one is independent of the control net of data network.Also can be by rent a data passage on the net at INTERNET, constituting one is the virtual net of node users special use on the network, this mode can realize the networking of long distance.Circuit in the data network is set up, is removed and the self-healing function when looped network, all passes through directly to transmit order between online each terminal of INTERNET and realizes.The mode that whole network using distributes and controls, the status equalization of each node.Sending and reception and control corresponding operation of the control information of management data net realizes under the control of the network management software that all control information is by the INTERNET network transmission.The running of network management is seen above-mentioned " network control channel part ".
The present invention adopts existing mature technique, brand-new network of combination of network formation of two kinds of different physical transfer media being formed, different transmission data capabilities are arranged, it makes that the operation of high-speed data network is more reliable and more stable, optimized the ratio of performance to price of network simultaneously, and made network have flexibly expanded function easily.The present invention is an innovation of networking technology area, and it adapts to the requirement of current express network development, for the high speed data network of extensively setting up at present provides a good networking scheme.
The Figure of description explanation:
Fig. 1 ring data network structure and self-healing function schematic diagram
1-master uses data channel
The 2-network node
The 3-backup data channel
4-control channel
5-network breakpoint location
Node N data terminal structural representation in Fig. 2 annular data network
The 6-laser
The 7-2*2 optical coupler
The 8-tunable receiver
9-self-healing coupling arrangement
Fig. 3 adopts the version of telephone network as the control net
Fig. 4 adopts the version of INTERNET net as the control net

Claims (2)

1, a kind of wavelength division multiplexing type multi-service data net management method is characterized in that:
The data channel that transmits high data rate information is separated with the control channel that transmits the low rate control information, the version of forming dual-network, adopt virtual subnet in telephone network, radiotelephony network or INTERNET net or the three kinds of networks as network control channel, communicating control information is managed the data network of the multi-wavelength multiplex form of a plurality of nodes compositions.
2, network management according to claim 1 is characterized in that:
A, a plurality of nodes in the data network can form star, annular, tree-like, total linear and these four kinds mixing graphic data nets that basic topological structure is formed;
B, the physical transfer media of data network can be wired optical fiber, cable or wireless data networks, and the carrier wave that transmits information can be light wave or electromagnetic wave;
C, the node in the data network can distribute one or several wavelength, perhaps can only receiving data information, and the node that does not send the data message function does not distribute wavelength;
D receives data-signal and adopts fixing or tunable filter.
CN96105249A 1996-05-24 1996-05-24 Data network controlling method using telephone network or computer internet Expired - Fee Related CN1048840C (en)

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CN96105249A CN1048840C (en) 1996-05-24 1996-05-24 Data network controlling method using telephone network or computer internet

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Application Number Priority Date Filing Date Title
CN96105249A CN1048840C (en) 1996-05-24 1996-05-24 Data network controlling method using telephone network or computer internet

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CN1048840C CN1048840C (en) 2000-01-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101902360A (en) * 2010-07-28 2010-12-01 中兴通讯股份有限公司 Method for synchronizing information between master equipment and standby equipment and server
CN103795600A (en) * 2012-10-30 2014-05-14 贵阳铝镁设计研究院有限公司 Connection method capable of avoiding loop network paralysis and network structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0599177B1 (en) * 1992-11-16 2002-05-29 Canon Kabushiki Kaisha Communication method and system with token passing address

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101902360A (en) * 2010-07-28 2010-12-01 中兴通讯股份有限公司 Method for synchronizing information between master equipment and standby equipment and server
WO2012013050A1 (en) * 2010-07-28 2012-02-02 中兴通讯股份有限公司 Method and server used for information synchronization between master equipment and standby equipment
CN103795600A (en) * 2012-10-30 2014-05-14 贵阳铝镁设计研究院有限公司 Connection method capable of avoiding loop network paralysis and network structure

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