CN204350225U - A kind of based on SDN technique construction IPization Digital Television information source safety system - Google Patents
A kind of based on SDN technique construction IPization Digital Television information source safety system Download PDFInfo
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- CN204350225U CN204350225U CN201520087292.7U CN201520087292U CN204350225U CN 204350225 U CN204350225 U CN 204350225U CN 201520087292 U CN201520087292 U CN 201520087292U CN 204350225 U CN204350225 U CN 204350225U
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Abstract
The utility model relates to a kind of based on SDN technique construction IPization Digital Television information source safety system, comprise the internal source connected step by step successively, master headed core switch, SDN switching equipment, sub-headend service switch and external source, internal source focuses on master headed core switch IP multicast signal, dock with SDN switching equipment again, the program IP multicast signal that the self-defined internal source of SDN switching equipment is specified divides different port to be distributed to required sub-headend service switch, external source is docked with sub-headend service switch, external source is enable to receive IP multicast signal from internal source, internal source can receive the signal from external source, the sub-headend service switch of different system can only receive the information source that internal source is specified, mutually isolated between external source.The utility model networking is simple, and practical, fail safe is high, and cost is low, and stable.
Description
Technical field
The utility model relates to a kind of IP digital TV platform information source safety system based on SDN technique construction.
Background technology
Radio data system, being that important Domestic News propagates platform, is also that the people obtains scientific knowledge, meets the important tool of entertainment demand.
Along with the development of TV tech, Digital Television IPization transmission mode has started progressively to replace traditional DS3, ASI transmission mode, become the trend of TV tech development, the television signal transmission pattern of all-IP is formally used in Broadcast and TV system, telecom operators.
Digital Television all-IP, be exactly adopt IP encapsulation technology from the output of the input of information source, signal content process and scheduling, signal, having broken conventional digital TV point-to-point ASI signal connected mode, realized signal stream combination in any, flexible dispatching, is the connection mode of any point-to-multipoint.
For Broadcast and TV system, after information source IPization, front end IP group broadcasting video frequency signal is from different system, and IP multicast signal stream receives and send frequently between system, after signal stream is communicated with, there is hidden danger in whole signal source system safety in operation and stability, consider from security of system, if with traditional firewall, the data protection means of exchange agreement carry out system safety protection, dispose relative complex, maintenance difficulties is larger.The utility model just in order to improve IP group broadcasting video frequency transmission security, through constantly exploring, innovation transformation and the unique information source safety system formed.
Utility model content
Technical problem to be solved in the utility model is, build a set of flow process simple and easy, flexibility ratio is high, cost is low, possess the safety system of isolation and stability, ensure that digital TV front-end IP signal source sends and receives safety, while the signal that built-in system and external system are specified can communicate, isolate the signal outside illegal or specified scope, realize built-in system IP information source safety.
The utility model solves the problems of the technologies described above taked technical scheme: a kind of based on SDN technique construction IPization Digital Television information source safety system, comprise the internal source connected step by step successively, master headed core switch, SDN switching equipment, sub-headend service switch and external source, internal source focuses on master headed core switch IP multicast signal, dock with SDN switching equipment again, the program IP multicast signal that the self-defined internal source of SDN switching equipment is specified divides different port to be distributed to required sub-headend service switch, external source is docked with sub-headend service switch, external source is enable to receive IP multicast signal from internal source, internal source can receive the signal from external source, the sub-headend service switch of different system can only receive the information source that internal source is specified, mutually isolated between external source.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, traditional fire compartment wall isolation technology needs to increase various protocols and coordinates realization, when certain a part of IP signal increases or reduces, equipment of often locating all needs to be configured amendment, operation easier is large, security protection DeGrain, SDN technology is utilized to incorporate IP digital television system, SDN is the Internet Exchange Architecture based on OpenFlow standard, there is its chain of command and forward stalling characteristic, for far-end static IP signal, first send into SDN switching equipment, SDN switching equipment inside is furnished with rule in advance, and legal IP just can be forwarded.The process that IP multicast is passed in and out is all specify input and output, the IP multicast signal that all are non-designated can be isolated, ensure that internal source secured reception is to its exterior IP multicast signal, external source also can receive the IP multicast signal exported from built-in system simultaneously, signal effectively can isolate illegal address at reception process of transmitting, prevent broadcast storm, safeguards system safety, and greatly reduce maintenance cost and efficiency.
2, inside and outside can customize of IP multicast source transmitting-receiving, the scheduling of flexible, the safe settling signal of energy simultaneously, network configuration is simple, when needing newly-increased external signal access built-in system, only need aerial lug to be accessed SDN switching equipment port, support netting twine, fiber port, dispose simple, operation maintenance is more convenient.
3, through test in 2 years, do not occur any fault, safety and stability is high.
Accompanying drawing explanation
Fig. 1 is the IP digital TV platform information source safety system anatomical connectivity schematic diagram based on SDN technique construction described in the utility model.
Fig. 2 is the connection layout of multiple sub-headend service switch security system described in the utility model.
Embodiment
Below in conjunction with accompanying drawing and example, the technical solution of the utility model is described in further details.
As depicted in figs. 1 and 2, a kind of based on SDN technique construction IPization Digital Television information source safety system, comprise internal source, master headed core switch, SDN switching equipment, sub-headend service switch and external source; Independent electric module or list/bimodulus optical module are inserted in the support of individual equipment port, and order according to Fig. 1, equipment room utilizes equal modules to connect step by step.
Operation principle of the present utility model is as follows:
As shown in Figure 1, internal source is as information source center, front end, be made up of multiple information source system, bear video IP multicast signal production task, master headed core switch is all accessed in front end signal source, master headed core switch has been responsible for forwarding and reception work, when needs are to a certain external source input signal, the mode of master headed core switch static multicast is configured in specifies delivery outlet port, this port is connected with SDN switching equipment, SDN switching equipment utilizes its control and forward separating characteristic, to the IP multicast signal definition of master headed core switch designated port output be received to specified port, and the content in this output port is required for external source, this Single port is connected with the sub-headend service switch of external source, the multicast address of definition is outputted to the port of specifying by the inner automatic business processing service of SDN switching equipment, be linked into sub-headend service switch, the address pool of regulation after exporting with SDN switching equipment can only be set up in sub-headend service switch, external source obtains assigned ip video multicast in sub-headend service switch, external source couples together to the physical link of internal source, for whole system, Signal reception unidirectional can effectively ensure internal source system.
As shown in Figure 2, when internal source needs the situation receiving multiple external source, sub-headend service switch will export specification signal to SDN switching equipment in static multicast mode, in like manner, SDN switching equipment is by the signal of multiple for definition port input, single or multiple interface of specifying is outputted to by the service of device interior automatic business processing, this interface is connected with master headed core switch, master headed core switch can only obtain the IP multicast signal after SDN switching equipment editor, be delivered to each system of Headend again to use, signal is the transmission of unidirectional assigned address from external source to internal source, outside illegal signals to enter into master headed core switch.
Therefore, be no matter that the utility model all not only meets signal dispatching requirement, has also ensured the safe transmission of signal between system simultaneously from inside to outside or enter inside from outside.
Claims (1)
1. one kind based on SDN technique construction IPization Digital Television information source safety system, it is characterized in that, comprise the internal source connected step by step successively, master headed core switch, SDN switching equipment, sub-headend service switch and external source, internal source focuses on master headed core switch IP multicast signal, dock with SDN switching equipment again, the program IP multicast signal that the self-defined internal source of SDN switching equipment is specified divides different port to be distributed to required sub-headend service switch, external source is docked with sub-headend service switch, external source is enable to receive IP multicast signal from internal source, internal source can receive the signal from external source, the sub-headend service switch of different system can only receive the information source that internal source is specified, mutually isolated between external source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520087292.7U CN204350225U (en) | 2015-02-06 | 2015-02-06 | A kind of based on SDN technique construction IPization Digital Television information source safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520087292.7U CN204350225U (en) | 2015-02-06 | 2015-02-06 | A kind of based on SDN technique construction IPization Digital Television information source safety system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204350225U true CN204350225U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520087292.7U Expired - Fee Related CN204350225U (en) | 2015-02-06 | 2015-02-06 | A kind of based on SDN technique construction IPization Digital Television information source safety system |
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| Country | Link |
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| CN (1) | CN204350225U (en) |
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2015
- 2015-02-06 CN CN201520087292.7U patent/CN204350225U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 |