CN105635161A - Data transmission method and system - Google Patents
Data transmission method and system Download PDFInfo
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- CN105635161A CN105635161A CN201610019111.6A CN201610019111A CN105635161A CN 105635161 A CN105635161 A CN 105635161A CN 201610019111 A CN201610019111 A CN 201610019111A CN 105635161 A CN105635161 A CN 105635161A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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Abstract
The invention discloses a data transmission method and a data transmission system. The data transmission method comprises the steps that an optical fiber card controller and a data receiving terminal are in a disconnected state, the optical fiber card controller receives data of a data transmitting end; the optical fiber card controller is disconnected with the data transmitting end, and temporarily stores the data; and the optical fiber card controller is connected with the data receiving end, and sends the temporarily stored data to the data receiving end, wherein the data receiving end and the data transmitting end are respectively positioned at two relatively independent safe areas. According to the data transmission method and system provided by the invention, during a data transmission process, the optical fiber card controller is only connected and communicated with one of the data receiving end and the data transmission end at a moment is ensured, the physical isolation between the data receiving end and the data transmitting end is ensured, and the data transfer can be controlled via the optical fiber card controller, thus the security level of data transmission is greatly improved.
Description
Technical field
The present invention relates to IC design technical field, more particularly, it relates to a kind of data transmission method and system.
Background technology
Along with developing rapidly of computer technology and integrated circuit technique, high performance computer system is increasingly becoming the needs of socio-economic development. Meanwhile, Host Security has also been promoted to the height of national security.
Present stage, there is such a case: two servers even more than different security domains are irregular needs to carry out data communication, and these security domains do not allow to use movable storage device. During in the face of needing to use fiber optic network to carry out the situation of data transfer, common sonet card cannot realize the function of correspondence, because once the different security domains that fiber optic network connects, then the security domain of these isolation originally can connect at once, and former all security isolations based on software all can lose efficacy.
In sum, how the data transfer mode of a kind of safety between different safety zones is provided, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of data transmission method and system, this data transmission method can carry out safe data transmission from system between different safety zones.
To achieve these goals, the present invention provides following technical scheme:
A kind of data transmission method, including:
Sonet card controller and data receiver are off, the data of described sonet card controller receiving data transmitting terminal;
Described sonet card controller disconnects the connection with described data sending terminal, and described data is kept in;
Described sonet card controller is set up with described data receiver and is connected, and temporary described data are sent to described data receiver;
Wherein, described data receiver and described data sending terminal lay respectively at two relatively independent safety zones.
Preferably, also include before the step of the data of described sonet card controller receiving data transmitting terminal:
Described sonet card controller and described data sending terminal are off, and described sonet card controller receives the request data of described data receiver;
Described sonet card controller disconnects the connection with described data receiver, and described request data is kept in;
Described sonet card controller is set up with described data sending terminal and is connected, and temporary described request data is sent to described data sending terminal.
Preferably, described sonet card controller also includes after receiving the request data of described data receiver:
Described sonet card controller sends the confirmation finished receiving to described data receiver;
And/or after temporary described request data is sent to described data sending terminal by described sonet card controller, also include:
Described data sending terminal sends the confirmation finished receiving to described sonet card controller.
Preferably, after the data of described sonet card controller receiving data transmitting terminal, also include:
The confirmation finished receiving is sent to described data sending terminal;
And/or after temporary described data are sent to described data receiver by described sonet card controller, also include:
Described data receiver sends the confirmation finished receiving to described sonet card controller.
Preferably, after temporary described data or described request data are transmitted by described sonet card controller, described data or described request data to working area are purged.
Preferably, described data receiver is server system, and described data sending terminal is lay respectively at the external data source of two relatively independent safety zones with described server system.
A kind of data transmission system, including data receiver and data sending terminal, and for controlling the sonet card controller of data transmission between described data receiver and data sending terminal, wherein, described data receiver and described data sending terminal lay respectively at two relatively independent safety zones;
Described sonet card controller for receiving the data of described data sending terminal with described data receiver when being off, cut off the connection with described data sending terminal, described data are kept in, set up with described data receiver and be connected, temporary described data are sent to described data receiver;
Described data receiver is for receiving temporary described data;
Described data sending terminal is for sending described data to described sonet card controller.
Preferably, described data receiver also includes the request data discharger for sending request data with described sonet card controller to described sonet card controller when described data sending terminal is off.
Preferably, described sonet card controller is connected with the Cache being used for described data and/or described request data are carried out buffer memory.
Preferably, described sonet card controller, described data receiver and described data sending terminal are provided with for sending the feedback module receiving confirmation after finishing receiving.
Data transmission method provided by the invention and system achieve the data communication between the data receiver and data sending terminal being respectively in two relatively independent safety zones, and ensure that the physical isolation of the two simultaneously, it is ensured that the safety of the two. At data transmission procedure, sonet card controller, after disconnecting with data receiver, receives the data that data sending terminal sends, and in reception process, sonet card controller and data receiver are not connected to all the time, it is ensured that the safety of data; After finishing receiving, sonet card controller and data sending terminal disconnect, and are connected with data receiver and carry out data transmission. Ensure that sonet card controller is only connected with the one in data receiver, data sending terminal and communicates in above process, achieve the physical isolation between data receiver and data sending terminal, and sonet card controller transmission Data Control can be passed through, drastically increase the level of security of data transmission.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the flow chart of the specific embodiment one of data transmission method provided by the present invention;
Fig. 2 is the flow chart of the specific embodiment two of data transmission method provided by the present invention;
Fig. 3 is the module map of a kind of specific embodiment of data transmission system provided by the present invention;
Fig. 4 is the module map of the another kind of specific embodiment of data transmission system provided by the present invention.
Accompanying drawing is labeled as, sonet card controller 1, data sending terminal 2, data receiver 3, Cache 4, external data source 21, server system 31.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The core of the present invention is to provide a kind of data transmission method and system, this data transmission method and system ensure that the physical isolation between the data receiver and data sending terminal laying respectively at two relatively independent safety zones, and realize the transmission of data therebetween, both meet the needs of data transmission, in turn ensure that the safety of transmission.
Refer to the flow chart of the specific embodiment one that Fig. 1, Fig. 1 are data transmission method provided by the present invention.
Data transmission method provided by the present invention mainly comprises the steps that
Step S1: sonet card controller 1 and data receiver 3 are off, and sonet card controller 1 receives the data of data sending terminal 2.
In above-mentioned steps, off-state can include at least two situation, one of which is that sonet card controller 1 is constantly in off-state with data receiver 3, when another kind is initial, optical fiber card controller 1 and data receiver 3 are in connection status, then, sonet card controller 1 disconnects the connection with data receiver 3. It addition, the data that sonet card controller 1 receives data sending terminal 2 can be understood as the connection of sonet card controller 1 establishment and data sending terminal 2 and receive the data of data sending terminal 2.
Step S2: sonet card controller 1 disconnects the connection with data sending terminal 2, and data is kept in.
In above-mentioned steps, sonet card controller 1 disconnects the connection with data sending terminal 2 and the step that data are kept in can carry out simultaneously, it is possible to have sequencing, those skilled in the art can be controlled as the case may be. Wherein, data refer to sonet card controller 1 received data in step S1.
Step S3: sonet card controller 1 is set up with data receiver 3 and is connected, and temporary data are sent to data receiver 3.
In above-mentioned steps, temporary data are in step S2 sonet card controller 1 and carry out the data kept in.
Wherein, data receiver 3 and data sending terminal 2 lay respectively at two relatively independent safety zones.
First, sonet card controller 1 needs to be off with data receiver 3, and in this case, data sending terminal 2 sends data to sonet card controller 1, and sonet card controller 1 receives data;
Then, sonet card controller 1 cuts off the connection with data sending terminal 2, thus ensureing the communication failure of sonet card controller 1 and data sending terminal 2, and, above-mentioned data are kept in by sonet card controller 1.
Then, sonet card controller 1 is set up with data receiver 3 and is connected, realize the data communication with data receiver 3, temporary data are sent to data receiver 3, in the process, sonet card controller 1 and data sending terminal 2 remain off, during to realize carrying out data communication between sonet card controller 1 and data sink, data sending terminal 2 is not involved in communication, it is ensured that the safety of data receiver 3.
The data transmission method that above-described embodiment provides ensure that the safety of data. In data transmission procedure, sonet card controller 1 is only connected with the one in data receiver 3, data sending terminal 2 and communicates, ensure that the physical isolation between data receiver 3 and data sending terminal 2, and Data Control can be transmitted by sonet card controller 1, the safety of data transmission is greatly improved.
Need it is to be noted that the effect of the data receiver 3 being previously mentioned in the application is not limited to only data are received, it is also possible to data are transmitted; And the effect of data sending terminal 2 is also not limited to only data are transmitted, it is possible to data are received. It is envisioned that the differentiation that the title of data receiver 3, data sending terminal 2 is only used as in above-mentioned steps to two parts, it is not that two parts are carried out functional specification.
Needs should be mentioned that, the safety zone being previously mentioned in the application refers to has physically-isolated disconnected network area, such as generally known LAN and the outer net relative to this LAN, direct connection generally it is not provided with between LAN and outer net, so LAN and outer net are two relatively independent safety zones, or two LANs are also relatively independent safety zone.
Optionally, above-mentioned data receiver 3 can be server system 31, server system 31 is considered as being the server system within a LAN, data sending terminal 2 can be the external data source 21 relative to above-mentioned server system 31, external data source 21 namely be arranged in the data source of outer net or other LANs. It is to say, said method can be understood as external data source 21 to server system 31 send data time operating process. When external data source 21 needs to send data to server system 31, require over sonet card controller 1 to be physically separated, and realize the transmission to data as intermediate transfer, thus ensureing that data receiver 3 and data sending terminal 2 can carry out the transmission of data when not being directly connected to. Certainly, said method can also as server system 31 to external data source 21 send data time operating process.
Still further aspect, above-mentioned steps it can be appreciated that server system 31 to external data source 21 request for data ask time method, correspondingly, data sending terminal 2 is server system 31, data receiver 3 is external data source 21, and the data of transmission are the request data to external data source 21 request for data. It is to say, operation external data source 21 carried out during request of data for server system 31 can be similar with the method for data transmission procedure.
Refer to the flow chart of the specific embodiment two that Fig. 2, Fig. 2 are data transmission method provided by the present invention, specifically, it is possible to further comprising the steps of before above-mentioned steps S1:
Step S4: sonet card controller 1 and data sending terminal 2 are off, and sonet card controller 1 receives the request data of data receiver 3.
Similar with step S1, off-state can include at least two situation, one of which is that sonet card controller 1 is constantly in off-state with data sending terminal 2, when another kind is initial, optical fiber card controller 1 and data sending terminal 2 are in connection status, and then sonet card controller 1 disconnects the connection with data sending terminal 2. Additionally, sonet card controller 1 receives the request data of data receiver 3 and can be understood as sonet card controller 1 and create the connection with data receiver 3 and receive the data of data receiver 3, include in this request data required data are described or with the introduction that required data are same type of data.
Step S5: sonet card controller 1 disconnects the connection with data receiver 3, and request data is kept in.
Similar with step S2, sonet card controller 1 disconnects the connection with data receiver 3 and asks the step that data are kept in carry out simultaneously, it is possible to have sequencing, those skilled in the art can be controlled as the case may be. Wherein, request data refers to sonet card controller 1 received request data in step S4.
Step S6: sonet card controller 1 is set up with data sending terminal 2 and is connected, and temporary request data is sent to data sending terminal 2.
In above-mentioned steps, temporary request data is in step S5 sonet card controller 1 and carries out the request data kept in.
Above-mentioned steps S4, step S5 and step S6 achieve data receiver 3 and carry out the step of request of data to data sending terminal 2, similar to the step receiving and sending data between data receiver 3 with above-mentioned data sending terminal 2, needing to keep connecting with transmitting procedure, sonet card controller 1 is only connected with the one in data receiver 3, data sending terminal 2, transfer data information. Further, step S6 can prepare to be directly entered after step S1, step S3 complete after completing and can be prepared to enter into step S4. Above-mentioned steps completes by the data receiver 3 data request process to data sending terminal 2 and data sending terminal 2 to the data transfer procedure of data receiver 3, sonet card controller 1 is as the bridge of the two transmission data in above process, only it is connected with the one in the two and accepts data, it is possible to data are kept in.
Optionally, after in above-mentioned steps S1, sonet card controller 1 receives the data of data sending terminal 2, it is also possible to including: sonet card controller 1 can send, to data sending terminal 2, the confirmation finished receiving.
Optionally, in above-mentioned steps S2 after temporary data are sent to data receiver 3 by sonet card controller 1, it is also possible to including: data receiver 3 sends the confirmation finished receiving to sonet card controller 1.
Analogously, after in above-mentioned steps S4, sonet card controller 1 receives the request data of data receiver 3, it is also possible to including: sonet card controller 1 can send, to data receiver 3, the confirmation finished receiving.
Optionally, in above-mentioned steps S5 after temporary request data is sent to data sending terminal 2 by sonet card controller 1, it is also possible to including: data sending terminal 2 can send, to sonet card controller 1, the confirmation finished receiving.
Above-mentioned several step can make sonet card controller 1, data sending terminal 2, data receiver 3 obtain the result of transmission in carrying out data transfer in time, improves efficiency of transmission.
Further, for the sender in above-mentioned transmission process, if not receiving confirmation within a period of time, it is possible to corresponding recipient is carried out retransmiting of data, for instance:
In above-mentioned steps S1, data sending terminal 2 is after sending data to sonet card controller 1, if the time does not receive the confirmation of sonet card controller 1 in Preset Time, then again can send data to sonet card controller 1; After temporary data are sent to data receiver 3 by sonet card controller 1, if the time does not receive the confirmation of data receiver 3 in Preset Time, then again can send data to data receiver 3. Other steps in like manner, do not repeat them here above.
Further, after temporary request data is sent to data sending terminal 2 by sonet card controller 1, this data message can be retrieved by data sending terminal 2, determine whether that the data matched with above-mentioned request data can feed back to sonet card controller 1, if it has, then send above-mentioned data to sonet card controller 1; If it is not, send, to sonet card controller 1, the information that search is failed, reduce the time that sonet card controller 1 waits.
Consider that sonet card controller 1 is likely to the storage capacity to data message limited, it is possible to the data that sonet card controller 1 carries out scratch pad operation are carried out regular removing and process. In a specific embodiment provided by the present invention, after temporary data or request data are sent by sonet card controller 1, data or request data to working area are purged.
Specifically, in step s 2, after temporary data are sent to data receiver 3 by sonet card controller 1, it is possible to temporary data are purged; In step s 5, after temporary request data is sent to data sending terminal 2 by sonet card controller 1, it is possible to temporary request data is purged.
Except above-mentioned data transmission method, the present invention also provides for a kind of data transmission system. Refer to the module map of a kind of specific embodiment that Fig. 3 and Fig. 4, Fig. 3 are data transmission system provided by the present invention; Fig. 4 is the module map of the another kind of specific embodiment of data transmission system provided by the present invention. This data transmission system includes data receiver 3 and data sending terminal 2, and for controlling the sonet card controller 1 of data transmission between data receiver 3 and data sending terminal 2, wherein, data receiver 3 and data sending terminal 2 lay respectively at two relatively independent safety zones. Sonet card controller 1 is connected to data receiver 3 and data sending terminal 2, for realizing the data transmission between data receiver 3 and data sending terminal 2.
Sonet card controller 1 is mainly used in receiving when being off the data of data sending terminal 2 with data receiver 3, cut off the connection with data sending terminal 2, data are kept in, sets up with data receiver 3 and be connected, temporary data are sent to data receiver 3.
Data receiver 3 is for receiving the temporary data that the sonet card controller 1 connected sends.
Data sending terminal 2 is for when sonet card controller 1 is off with data receiver 3, sending data to sonet card controller 1.
The transmission method of the data transmission system that above-described embodiment provides is referred to above-mentioned data transmission method. This data transmission system can ensure that the safety of data, in transmitting procedure, sonet card controller 1 is only connected with the one in data receiver 3, data sending terminal 2 and communicates, ensure that the physical segmentation controlling between data receiver 3 and data sending terminal 2 by sonet card controller 1 and be connected, the safety of data transmission is greatly improved.
Consider that data receiver 3 needs to carry out request of data to data sending terminal 2, so in a specific embodiment provided by the present invention, data receiver 3 also includes the request data discharger for sending request data when data sending terminal 2 and sonet card controller 1 off-state to sonet card controller 1. Concrete request data process refer to data transmission method part.
Consider storage capacity and the service ability of sonet card controller 1, need to arrange external storage device for sonet card controller 1, in one particular embodiment of the present invention, sonet card controller 1 is connected with the Cache 4 being used for data and/or request data are carried out buffer memory. Cache 4 specifically can include multiple storage device, and such as flash storage etc., any equipment with storage function all should include in the scope that the present invention protects.
Consider that sonet card controller 1 is likely to the storage capacity to data message limited, it is possible to the data carrying out scratch pad operation at sonet card controller 1 carry out regular removing and process. In a specific embodiment provided by the present invention, sonet card controller 1 includes removing module, and after temporary data or request data are transmitted by sonet card controller 1, data or request data to working area are purged.
Specifically, after temporary data are sent to data receiver 3 by sonet card controller 1, sonet card controller 1 can control to remove module and temporary data is purged; After temporary request data is sent to data sending terminal 2 by sonet card controller 1, sonet card controller 1 can control to remove module and temporary request data is purged.
Optionally, sonet card controller 1, data receiver 3 and data sending terminal 2 are provided with for sending the feedback module receiving confirmation after finishing receiving. Between sonet card controller 1, data receiver 3 and data sending terminal 2 three after completing once directly information transmission, an information feedback can be carried out, the transmitting terminal making data is able to confirm that data are successfully transmitted, and concrete transmission and transmittance process refer to the specific embodiment of data transferring method.
Needing should be mentioned that in each embodiment above-mentioned, data receiver 3 can be server system 31, and data sending terminal 2 can be the external data source 21 of server, or contrary setting. It addition, sonet card controller 1 can be the mini optical fibre card controller being arranged on the sonet card being connected between data receiver 3 and data sending terminal 2. Sonet card controller 1 is to achieving physical isolation between data receiver 3 and data sending terminal 2, and transmits by self achieving the indirect data between data receiver 3 and data sending terminal 2.
Needs should be mentioned that, in order to ensure physical isolation and the control of data receiver 3 and data sending terminal 2, can when not carrying out data transmission, sonet card controller 1 always keeps being connected with data receiver 3, when being applied in the situation of LAN and outer net, sonet card controller 1 always keeps and the connection of the server system in LAN.
Need to should be mentioned that the information that the data being previously mentioned in the application include various ways, the all types of data messages such as such as Word message, image information, audio-frequency information, corresponding, solicited message mentioned herein should include various types of information corresponding with above-mentioned data, request data is the solicited message for searching above-mentioned data, and its form is not limited.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.
Above a kind of data transferring method provided by the present invention is described in detail with system. Principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention. It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention carries out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (10)
1. a data transmission method, it is characterised in that including:
Sonet card controller and data receiver are off, the data of described sonet card controller receiving data transmitting terminal;
Described sonet card controller disconnects the connection with described data sending terminal, and described data is kept in;
Described sonet card controller is set up with described data receiver and is connected, and temporary described data are sent to described data receiver;
Wherein, described data receiver and described data sending terminal lay respectively at two relatively independent safety zones.
2. data transmission method according to claim 1, it is characterised in that also include before the step of the data of described sonet card controller receiving data transmitting terminal:
Described sonet card controller and described data sending terminal are off, and described sonet card controller receives the request data of described data receiver;
Described sonet card controller disconnects the connection with described data receiver, and described request data is kept in;
Described sonet card controller is set up with described data sending terminal and is connected, and temporary described request data is sent to described data sending terminal.
3. data transmission method according to claim 2, it is characterised in that described sonet card controller also includes after receiving the request data of described data receiver:
Described sonet card controller sends the confirmation finished receiving to described data receiver;
And/or after temporary described request data is sent to described data sending terminal by described sonet card controller, also include:
Described data sending terminal sends the confirmation finished receiving to described sonet card controller.
4. data transmission method according to claim 3, it is characterised in that after the data of described sonet card controller receiving data transmitting terminal, also include:
The confirmation finished receiving is sent to described data sending terminal;
And/or after temporary described data are sent to described data receiver by described sonet card controller, also include:
Described data receiver sends the confirmation finished receiving to described sonet card controller.
5. data transmission method according to claim 4, it is characterised in that after temporary described data or described request data are transmitted by described sonet card controller, described data or described request data to working area are purged.
6. the data transmission method according to claim 1 to 5 any one, it is characterised in that described data receiver is server system, described data sending terminal is lay respectively at the external data source of two relatively independent safety zones with described server system.
7. a data transmission system, it is characterized in that, including data receiver and data sending terminal, and for controlling the sonet card controller of data transmission between described data receiver and data sending terminal, wherein, described data receiver and described data sending terminal lay respectively at two relatively independent safety zones;
Described sonet card controller for receiving the data of described data sending terminal with described data receiver when being off, cut off the connection with described data sending terminal, described data are kept in, set up with described data receiver and be connected, temporary described data are sent to described data receiver;
Described data receiver is for receiving temporary described data;
Described data sending terminal is for sending described data to described sonet card controller.
8. data transmission system according to claim 7, it is characterized in that, described data receiver also includes the request data discharger for sending request data with described sonet card controller to described sonet card controller when described data sending terminal is off.
9. data transmission system according to claim 8, it is characterised in that described sonet card controller is connected with the Cache being used for described data and/or described request data are carried out buffer memory.
10. data transmission system according to claim 8 or claim 9, it is characterised in that be provided with on described sonet card controller, described data receiver and described data sending terminal for sending the feedback module receiving confirmation after finishing receiving.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019111.6A CN105635161A (en) | 2016-01-12 | 2016-01-12 | Data transmission method and system |
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| CN201610019111.6A CN105635161A (en) | 2016-01-12 | 2016-01-12 | Data transmission method and system |
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Application publication date: 20160601 |