CN109982156A - A kind of fast multicast round cut method, apparatus and system based on SDN - Google Patents
A kind of fast multicast round cut method, apparatus and system based on SDN Download PDFInfo
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- CN109982156A CN109982156A CN201711460006.7A CN201711460006A CN109982156A CN 109982156 A CN109982156 A CN 109982156A CN 201711460006 A CN201711460006 A CN 201711460006A CN 109982156 A CN109982156 A CN 109982156A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6402—Address allocation for clients
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of fast multicast round cut method, apparatus and system based on SDN, it is compared according to the information of multicast source and multicast entrant with round cut list by SDN controller, it generates multicast and turns multicast list, and multicast is successively turned by multicast list according to round cut plan and is sent to SDN switch, multicast list is turned according to the multicast that SDN controller issues by SDN switch, the destination address and port of modifying the multicast data flow that headend equipment issues are multicast address and the port of decoding device, send decoding device for multicast data flow.The present invention realizes that multiple multicast address turn fixed multicast address using SDN switch, solves the problems, such as that the switching round cut of video wall multicast is asynchronous, while also reducing the performance consumption of video management server and multicast switch.
Description
Technical field
The invention belongs to network routing techniques field more particularly to a kind of fast multicast round cut method, apparatus based on SDN
And system.
Background technique
With the development of monitoring trade, the real time monitoring of many industries has the need that live round cut is realized on video wall
It asks, live round cut is mainly used for the real time video image that user rapidly successively checks on multiple headend equipments.Fact wheel is cut through
Journey is equivalent to the process that the user in decoding end constantly constantly creates with multiple headend equipments with disconnects single live business.
In the solution of live round cut, the mode of multicast group is generallyd use to receive video flowing, solves the problems, such as stream duplication bottleneck.
During round cut, often the multicast data flow that new source IP C is issued, video management are received in some cycles inscribe changing-over
Scheduling of holding consultation is needed between server and decoder, control decoder stops receiving previous IPC multicast data flow and receiving new
Multicast data flow.Decoder sends IGMP and leaves and join message, and decoder to the multicast data flow that previous IPC is removed between RP forwards
Tree, establishes new IPC multicast data flow forwarding tree.
However, the delay of video switching is big, and there are videos to cut in round cut on video wall for multiple decoders in the above process
Nonsynchronous problem is changed, while the performance consumption of video management server Signalling exchange, group of switches Broadcast Control system processing is larger.
Summary of the invention
The object of the present invention is to provide a kind of fast multicast round cut method, apparatus and system based on SDN, it is existing for solving
There is technology when live round cut, the delay of video switching is big, video switches asynchronous and video management server signaling
The technical problems such as performance consumption is larger of interaction, the processing of group of switches Broadcast Control system.
To achieve the goals above, technical solution of the present invention is as follows:
A kind of fast multicast wheel blanking method based on SDN is applied to video monitoring system and realizes round cut, the video monitoring
System further includes headend equipment, decoding device and video management server, the video monitoring system further include SDN controller and
As the SDN switch of multicast convergent point RP, the fast multicast wheel blanking method based on SDN, comprising:
SDN controller receive video management server issue decoding device round cut plan, headend equipment issue it is original
Multicast address port, the regulation multicast address for decoding device distribution and port, generate round cut list；
The multicast source logon message that SDN switch receiving front-end equipment issues generates information about multicast source, receives decoding device
The multicast of sending, which joins message, generates multicast entrant's information, is reported to SDN controller；
The information of multicast source and multicast entrant are compared by SDN controller with round cut list, are generated multicast and are turned multicast
List item, and multicast is successively turned by multicast list according to round cut plan and is sent to SDN switch；
SDN switch turns multicast list according to the multicast that SDN controller issues, the multicast data flow that modification headend equipment issues
Destination address and port are multicast address and the port of decoding device, send decoding device for multicast data flow.
Further, the fast multicast wheel blanking method based on SDN, further includes:
SDN controller issues application layer parsing flow table to SDN switch；
SDN switch is resolved to next headend equipment and is sent to SDN exchange after the round cut period of round cut in the works arrives
When the current message of machine is I frame, turn multicast list, the group that modification headend equipment issues further according to the multicast that SDN controller issues
The destination address and port of broadcasting stream are multicast address and the port of decoding device, send decoding device for multicast data flow.
The invention also provides a kind of fast multicast wheel cutting system based on SDN is applied to video surveillance network and realizes wheel
It cuts, the video surveillance network further includes headend equipment, decoding device and video management server, described based on the quick of SDN
Multicast wheel cutting system includes SDN controller and the SDN switch as multicast convergent point RP, in which:
The SDN controller, for receiving decoding device round cut plan, the headend equipment hair that video management server issues
Native multicasting address port out, the regulation multicast address for decoding device distribution and port, generate round cut list；SDN is handed over
The information of the multicast source reported and multicast entrant of changing planes is compared with round cut list, is generated multicast and is turned multicast list, and root
Multicast is successively turned into multicast list according to round cut plan and is sent to SDN switch；
The SDN switch, the multicast source logon message issued for receiving front-end equipment generate information about multicast source, receive
The multicast that decoding device issues, which joins message, generates multicast entrant's information, is reported to SDN controller；According under SDN controller
The multicast of hair turns multicast list, and the destination address for the multicast data flow that modification headend equipment issues and port are the multicast of decoding device
Multicast data flow is sent decoding device by location and port.
Further, the SDN controller is also used to issue application layer parsing flow table to SDN switch；The SDN exchange
Machine is also used to after the round cut period of round cut in the works arrives, and is resolved to next headend equipment and is sent to the current of SDN switch
When message is I frame, turn multicast list, the mesh for the multicast data flow that modification headend equipment issues further according to the multicast that SDN controller issues
Address and port be decoding device multicast address and port, send decoding device for multicast data flow.
The invention also provides a kind of fast multicast wheel blanking method based on SDN is applied to be arranged in video monitoring system
In SDN controller, the video monitoring system further includes headend equipment, decoding device and video management server, the view
Frequency monitoring system further includes the SDN switch as multicast convergent point RP, the fast multicast wheel blanking method based on SDN, packet
It includes:
The native multicasting address end of decoding device round cut plan, headend equipment sending that reception video management server issues
Mouth, the regulation multicast address for decoding device distribution and port, generate round cut list；
The information about multicast source that the multicast source logon message issued according to headend equipment that SDN switch reports generates is received,
And the multicast issued according to decoding device that reports of SDN switch joins message multicast entrant's information of generation；
The information of multicast source and multicast entrant are compared with round cut list, multicast is generated and turns multicast list, and root
Multicast is successively turned into multicast list according to round cut plan and is sent to SDN exchange, so that SDN switch turns multicast table according to the multicast
, multicast address and port of the destination address and port for the multicast data flow that modification headend equipment issues for decoding device, by multicast
Stream is sent to decoding device.
Further, the fast multicast wheel blanking method based on SDN, further includes:
Application layer parsing flow table is issued to SDN switch, so that SDN switch arrives in the round cut period of round cut in the works
Afterwards, be resolved to next headend equipment be sent to SDN switch current message be I frame when, issued further according to SDN controller
Multicast turns multicast list, the destination address for the multicast data flow that modification headend equipment issues and port be decoding device multicast address and
Multicast data flow is sent decoding device by port.
The invention also provides a kind of fast multicast wheel cutting apparatus based on SDN is applied to be arranged in video monitoring system
In SDN controller, including processor and be stored with the nonvolatile memories of several computer instructions, the computer refers to
Step performed by SDN controller in the above method is realized when order is executed by processor.
The invention also provides a kind of fast multicast wheel blanking method based on SDN is applied to be arranged in video monitoring system
In SDN switch, the video monitoring system further include headend equipment, decoding device, video management server and SDN control
Device, the SDN switch is as multicast convergent point RP, the fast multicast wheel blanking method based on SDN, comprising:
The multicast source logon message that receiving front-end equipment issues generates information about multicast source, receives the multicast that decoding device issues
It joins message and generates multicast entrant's information, be reported to SDN controller；
It receives SDN controller and multicast list is turned according to the multicast that round cut plan successively issues, multicast is turned according to the multicast
List item, the destination address for the multicast data flow that modification headend equipment issues and port are multicast address and the port of decoding device, by group
It broadcasts stream and is sent to decoding device；
The multicast turn multicast list be by SDN controller by the information of multicast source and multicast entrant and round cut list into
It is generated after row, decoding device round cut plan that the round cut list is issued by SDN controller according to video management server,
Native multicasting address port, the regulation multicast address for decoding device distribution and the port that headend equipment issues generate.
Further, the fast multicast wheel blanking method based on SDN, further includes:
The application layer parsing flow table that SDN controller issues is received to be resolved to down after the round cut period of round cut in the works arrives
One headend equipment be sent to SDN switch current message be I frame when, the multicast issued further according to SDN controller turns multicast
List item, the destination address for the multicast data flow that modification headend equipment issues and port are multicast address and the port of decoding device, by group
It broadcasts stream and is sent to decoding device.
The invention also provides a kind of fast multicast wheel cutting apparatus based on SDN is applied to be arranged in video monitoring system
In SDN switch, including processor and be stored with the nonvolatile memories of several computer instructions, the computer refers to
Step performed by SDN switch in the above method is realized when order is executed by processor.
A kind of fast multicast round cut method, apparatus and system based on SDN proposed by the present invention, passes through SDN controller root
It is compared according to the information of multicast source and multicast entrant with round cut list, generates multicast and turn multicast list, and according to round cut meter
It draws and multicast is successively turned into multicast list is sent to SDN switch, group is turned according to the multicast that SDN controller issues by SDN switch
List item is broadcast, the destination address for the multicast data flow that modification headend equipment issues and port are multicast address and the port of decoding device, will
Multicast data flow is sent to decoding device.It realizes that multiple multicast address turn fixed multicast address using SDN switch, solves video wall group
The asynchronous problem of switching round cut is broadcast, while also reducing the performance consumption of video management server and multicast switch.
Detailed description of the invention
Fig. 1 is video monitoring system of embodiment of the present invention networking schematic diagram；
Fig. 2 is a kind of fast multicast round cut method flow diagram based on SDN of the present invention.
Specific embodiment
Technical solution of the present invention is described in further details with reference to the accompanying drawings and examples, following embodiment is not constituted
Limitation of the invention.
Technical solution of the present invention is handed over by distributing the dedicated fixed reception multicast address of round cut, port for decoder in SDN
Upper realization source IP C multicast of changing planes flow to the conversion for receiving address and port for distributing to decoding device, reaches and solves multicast switching
Round cut is asynchronous, reduces the purpose of video management server and multicast switch performance consumption.
As shown in Figure 1, the technical program disposes SDN switch and SDN controller, video management clothes in IPC multicast domain
Device be engaged in as decoding device distribution round cut dedicated multicast reception address and port, by round cut, IPC list, IPC send multicast in the works
Address, round cut period are issued to SDN controller；SDN controller issues flow table to SDN switch, and SDN switch is by IPC media
Stream guides to itself, is the dedicated fixed multicast of round cut for distributing to decoding device by IPC multicast data flow destination address and port translation
Address and port are received, the multicast forwarding tree of round cut dedicated multicast address is established between SDN switch and decoding device；Instantly
When one round cut cycle decoder equipment needs to receive the multicast data flow of new IPC, new flow table is issued by SDN controller, by new IPC
Multicast data flow is converted to round cut fixed multicast address, port.
As shown in Fig. 2, being a kind of fast multicast round cut method flow diagram based on SDN of technical solution of the present invention, this is based on
The fast multicast wheel blanking method of SDN is applied to video monitoring system and realizes live round cut, includes video tube in video monitoring system
Server, headend equipment, decoding device are managed, and as the SDN switch of multicast convergent point RP, is separately connected video management clothes
The SDN controller of business device and SDN switch, being somebody's turn to do the fast multicast wheel blanking method based on SDN includes:
SDN controller receive video management server issue decoding device round cut plan, headend equipment issue it is original
Multicast address port, the regulation multicast address for decoding device distribution and port, generate round cut list；
The multicast source logon message that SDN switch receiving front-end equipment issues generates information about multicast source, receives decoding device
The multicast of sending, which joins message, generates multicast entrant's information, is reported to SDN controller；
The information of multicast source and multicast entrant are compared by SDN controller with round cut list, are generated multicast and are turned multicast
List item, and multicast is successively turned by multicast list according to round cut plan and is sent to SDN exchange；
SDN switch turns multicast list according to the multicast that SDN controller issues, the multicast data flow that modification headend equipment issues
Destination address and port are multicast address and the port of decoding device, send decoding device for multicast data flow.
It is illustrated below by way of specific embodiment, in network as shown in Figure 1, video management server sets decoding
Native multicasting address port, the regulation multicast address for decoding device distribution and the port that standby round cut plan, IPC are issued are issued to
SDN controller.After SDN controller receives these information, round cut list is generated, as follows:
| Multicast source | Multicast group address and port | The round cut period | Decoding device receives multicast group |
| 1.1.1.1(IPC1) | 225.0.0.1 10002 | 10S | 239.1.1.1 20002 |
| 1.1.1.2(IPC2) | 225.0.0.2 10004 | 10S | 239.1.1.1 20002 |
Table 1
In the present embodiment round cut list, including multicast source, multicast group address and port, round cut period and decoding device receive
Multicast group.According to round cut list, round cut sequence, round cut period and the decoding device being sent to of each multicast source IP C receives multicast
Group has all configured completion.
And in video monitoring system, multicast source can in multicast domain to multicast convergent point RP initiate multicast Login,
Likewise, multicast receivers, which can initiate multicast, is added request.Multicast source and multicast receivers can also be notified by video management equipment
Issue corresponding message.
Such as: IPC1 issues multicast source logon message, multicast group address 225.0.0.1, port 10002.Then group
Login can be carried out to RP (SDN switch) for the message by broadcasting each access switch in domain, and such RP (SDN switch) is just raw
At (S, the G) list item of (1.1.1.1,225.0.0.1), this can be included on the information about multicast source of (S, G) list item by SDN switch
Offer SDN controller.
Equally, decoding device can send an IGMP report message, it is desirable to receive the multicast of multicast group 239.1.1.1
Stream, corresponding port numbers are 20002, and the exchange opportunity in multicast domain sends the direction of the request towards RP, such RP
(SDN switch) will generate (*, the G) list item of (*, 239.0.0.1).This can be included the group of (*, G) list item by SDN switch
It broadcasts entrant's information reporting and gives SDN controller.Such as multicast entrant's information of generation is as follows:
| Multicast source | Multicast group | RP | SDN switch receives the interface of RP request |
| * | 239.0.0.1 | SDN switch | Interface 1 |
Table 2
The information of multicast source and multicast entrant are compared by subsequent SDN controller with round cut list, are generated multicast and are turned
Multicast list.Generate the round cut sequence that multicast turns multicast list according to each multicast source IP C, for example, before this IPC1 as multicast source,
It is as follows that the multicast of generation turns multicast list:
Table 3
Multicast is turned multicast list and issues SDN switch by SDN controller, and notice SDN switch generates flow table for source IP and is
The address IPC1, destination address are that be revised as destination address be multicast to the IP packet that the port multicast group address 225.0.0.1 is 10002
Group address 239.0.0.1, port are 20002 IP packet, and message is sent from SDN switch interface 1.
Next, SDN controller starts timing, after the round cut period 10S past, it is switched to next multicast source IPC2.
At this point, the corresponding multicast of IPC2 is turned multicast list by SDN controller is sent to SDN switch, it is as follows:
Table 4
Multicast is turned multicast list and issues SDN switch by SDN controller, and the multicast that notice SDN switch deletes IPC1 turns
Change of current table, generating flow table for source IP is the address IPC2, and destination address is the IP that the port multicast group address 225.0.0.2 is 10004
It is multicast group address 239.0.0.1 that message, which is revised as destination address, port 20002, and by message from SDN switch interface 1
It sends.
Since during being switched to IPC2 by IPC1, purpose multicast address is constant, the message after IPC2 conversion passes through
Multicast forwarding tree identical with IPC1 is sent directly to decoding receiving device, the smooth decoded ip C2 image of decoding device.This technology
Scheme establishes the multicast forwarding tree of round cut dedicated multicast address between SDN switch and decoding device, and the IPC of subsequent round cut is multiple
With this multicast forwarding tree, consumption interchanger multicast protocol consumption is avoided, the media stream data packet after switching can forward immediately.
When multiple recipients (decoding device) forms video wall, method through this embodiment can be realized video wall
Round cut is synchronous.At this point, SDN controller is respectively that the corresponding multicast of decoding device generation turns multicast list according to the method described above, often
A decoding device corresponds to different fixation multicast address and port, and when reaching next round switching time point, SDN controller is simultaneously
The conversion flow table for issuing multiple decoding devices ensures the multicast of multiple recipients while converting.
Such as:
Video wall screen 1 (corresponding decoding device 1) currently checks IPC1 video, video wall screen 2 (corresponding decoding device 1)
Currently check IPC2 video；
Next round (10 seconds) video wall switches to: video wall screen 1 will check that IPC3 video, video wall screen 2 are checked
IPC4 video.
The transformational relation of the first round is:
IPC1 (225.1.1.1 10002) is converted to the 239.1.1.1 20002, IPC2 of video wall screen 1
(225.1.1.2 10004) is converted to the 239.1.1.2 20004 of video wall screen 2.
10 second time took turns to second, and SDN controller issues flow table to SDN switch transformational relation and is changed to:
IPC3 (225.1.1.3 10002) is converted to the 239.1.1.1 20002, IPC4 of video wall screen 1
(225.1.1.4 10004) is converted to the 239.1.1.2 20004 of video wall screen 2.
Fast multicast wheel blanking method of the present embodiment based on SDN, further includes:
SDN controller issues application layer parsing flow table to SDN switch；
SDN switch is resolved to next headend equipment and is sent to SDN exchange after the round cut period of round cut in the works arrives
When the current message of machine is I frame, turn multicast list, the group that modification headend equipment issues further according to the multicast that SDN controller issues
The destination address and port of broadcasting stream are multicast address and the port of decoding device, send decoding device for multicast data flow.
The present embodiment carries out multicast by the detection of I frame packet and converts flow table switching, further enhances video wall round cut synchronism.
Specifically, SDN controller to SDN switch issue application layer parsing flow table, when the round cut cycle time of round cut in the works to after,
SDN switch is resolved to next IPC (such as being originally IPC1, next is IPC2) and is sent to SDN switch current message
When for I frame (field for passing through the packet header RTP and TS identifies), then the conversion that IPC multicast flow to the fixed multicast address of decoding device is done,
It is I frame that decoding device, which receives the stream packet of next IPC, in this way, can be decoded at once, avoids waiting I frame to lead in handoff procedure
The image freeze or blank screen of cause.
In order to be clearly illustrated to the technical program, also it is set forth below for SDN controller and SDN
The specific embodiment of interchanger.
A kind of embodiment of the technical program, a kind of fast multicast wheel blanking method based on SDN are applied to be arranged in video
SDN controller in monitoring system, the video monitoring system further include headend equipment, decoding device and video management service
Device, the video monitoring system further include the SDN switch as multicast convergent point RP, the fast multicast wheel based on SDN
Blanking method, comprising:
The native multicasting address end of decoding device round cut plan, headend equipment sending that reception video management server issues
Mouth, the regulation multicast address for decoding device distribution and port, generate round cut list；
The information about multicast source that the multicast source logon message issued according to headend equipment that SDN switch reports generates is received,
And the multicast issued according to decoding device that reports of SDN switch joins message multicast entrant's information of generation；
The information of multicast source and multicast entrant are compared with round cut list, multicast is generated and turns multicast list, and root
Multicast is successively turned into multicast list according to round cut plan and is sent to SDN exchange, so that SDN switch turns multicast table according to the multicast
, multicast address and port of the destination address and port for the multicast data flow that modification headend equipment issues for decoding device, by multicast
Stream is sent to decoding device.
Fast multicast wheel blanking method of the present embodiment based on SDN, further includes:
Application layer parsing flow table is issued to SDN switch, so that SDN switch arrives in the round cut period of round cut in the works
Afterwards, be resolved to next headend equipment be sent to SDN switch current message be I frame when, issued further according to SDN controller
Multicast turns multicast list, the destination address for the multicast data flow that modification headend equipment issues and port be decoding device multicast address and
Multicast data flow is sent decoding device by port.
Another embodiment of the technical program, a kind of fast multicast wheel blanking method based on SDN are being regarded applied to setting
SDN switch in frequency monitoring system, the video monitoring system further include headend equipment, decoding device, video management service
Device and SDN controller, the SDN switch is as multicast convergent point RP, the fast multicast wheel blanking method based on SDN, packet
It includes:
The multicast source logon message that receiving front-end equipment issues generates information about multicast source, receives the multicast that decoding device issues
It joins message and generates multicast entrant's information, be reported to SDN controller；
It receives SDN controller and multicast list is turned according to the multicast that round cut plan successively issues, multicast is turned according to the multicast
List item, the destination address for the multicast data flow that modification headend equipment issues and port are multicast address and the port of decoding device, by group
It broadcasts stream and is sent to decoding device；
The multicast turn multicast list be by SDN controller by the information of multicast source and multicast entrant and round cut list into
It is generated after row, decoding device round cut plan that the round cut list is issued by SDN controller according to video management server,
Native multicasting address port, the regulation multicast address for decoding device distribution and the port that headend equipment issues generate.
Fast multicast wheel blanking method described in the present embodiment based on SDN, further includes:
The application layer parsing flow table that SDN controller issues is received to be resolved to down after the round cut period of round cut in the works arrives
One headend equipment be sent to SDN switch current message be I frame when, the multicast issued further according to SDN controller turns multicast
List item, the destination address for the multicast data flow that modification headend equipment issues and port are multicast address and the port of decoding device, by group
It broadcasts stream and is sent to decoding device.
The another embodiment of the technical program, it is also proposed that a kind of fast multicast wheel cutting system based on SDN is applied to view
Frequency monitoring network implementations round cut, the video surveillance network further includes headend equipment, decoding device and video management server, institute
Stating the fast multicast wheel cutting system based on SDN includes SDN controller and the SDN switch as multicast convergent point RP, in which:
SDN controller is issued for receiving the decoding device round cut plan, headend equipment that video management server issues
Native multicasting address port, the regulation multicast address for decoding device distribution and port, generate round cut list；By SDN switch
The information of the multicast source and multicast entrant that report is compared with round cut list, is generated multicast and is turned multicast list, and according to wheel
Multicast is successively turned multicast list and is sent to SDN switch by the plan of cutting；
SDN switch, the multicast source logon message issued for receiving front-end equipment generate information about multicast source, receive decoding
The multicast that equipment issues, which joins message, generates multicast entrant's information, is reported to SDN controller；It is issued according to SDN controller
Multicast turns multicast list, the destination address for the multicast data flow that modification headend equipment issues and port be decoding device multicast address and
Multicast data flow is sent decoding device by port.
The present embodiment SDN controller is also used to issue application layer parsing flow table to SDN switch；The SDN switch is also
For being resolved to the current message that next headend equipment is sent to SDN switch after the round cut period of round cut in the works arrives
When for I frame, turn multicast list, the destination for the multicast data flow that modification headend equipment issues further according to the multicast that SDN controller issues
Location and port are multicast address and the port of decoding device, send decoding device for multicast data flow.
The another embodiment of the technical program, it is also proposed that a kind of fast multicast wheel cutting apparatus based on SDN, applied to setting
The SDN controller in video monitoring system is set, including processor and the non-volatile of several computer instructions is stored with and deposits
Reservoir realizes step performed by SDN controller in the above method when computer instruction is executed by processor.
The another embodiment of the technical program, it is also proposed that a kind of fast multicast wheel cutting apparatus based on SDN, applied to setting
The SDN switch in video monitoring system is set, including processor and the non-volatile of several computer instructions is stored with and deposits
Reservoir realizes step performed by SDN switch in the above method when computer instruction is executed by processor.
In the present embodiment, be directly or indirectly electrically connected between memory and processor, with realize data transmission or
Interaction.It is electrically connected for example, these elements can be realized from each other by one or more communication bus or signal wire.Storage
The computer program that can be run on a processor is stored in device.Wherein, the memory may be, but not limited to, and deposit at random
Access to memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM) may be programmed only
It reads memory (Programmable Read-Only Memory, PROM), erasable read-only memory (Erasable
Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable
Programmable Read-Only Memory, EEPROM) etc..Wherein, for storing program, the processor exists memory
It receives after executing instruction, executes described program.Processor may be a kind of IC chip, the processing energy with data
Power.Above-mentioned processor can be general processor, including central processing unit (Central Processing Unit, CPU),
Network processing unit (Network Processor, NP) etc..It may be implemented or execute each side disclosed in the embodiment of the present invention
Method, step and logic diagram.General processor can be microprocessor or the processor is also possible to any conventional processing
Device etc..
The above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited, without departing substantially from essence of the invention
In the case where mind and its essence, those skilled in the art make various corresponding changes and change in accordance with the present invention
Shape, but these corresponding changes and modifications all should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. a kind of fast multicast wheel blanking method based on SDN is applied to video monitoring system and realizes round cut, the video monitoring system
System further includes headend equipment, decoding device and video management server, which is characterized in that the video monitoring system further includes
SDN controller and SDN switch as multicast convergent point RP, the fast multicast wheel blanking method based on SDN, comprising:
The native multicasting of decoding device round cut plan, headend equipment sending that SDN controller reception video management server issues
Address port, the regulation multicast address for decoding device distribution and port, generate round cut list；
The multicast source logon message that SDN switch receiving front-end equipment issues generates information about multicast source, receives decoding device and issues
Multicast join message and generate multicast entrant's information, be reported to SDN controller；
The information of multicast source and multicast entrant are compared by SDN controller with round cut list, are generated multicast and are turned multicast list,
And multicast is successively turned by multicast list according to round cut plan and is sent to SDN switch；
SDN switch turns multicast list, the purpose for the multicast data flow that modification headend equipment issues according to the multicast that SDN controller issues
Address and port are multicast address and the port of decoding device, send decoding device for multicast data flow.
2. the fast multicast wheel blanking method based on SDN as described in claim 1, which is characterized in that described based on the quick of SDN
Multicast wheel blanking method, further includes:
SDN controller issues application layer parsing flow table to SDN switch；
SDN switch is resolved to next headend equipment and is sent to SDN switch after the round cut period of round cut in the works arrives
When current message is I frame, turn multicast list, the multicast data flow that modification headend equipment issues further according to the multicast that SDN controller issues
Destination address and port be decoding device multicast address and port, send decoding device for multicast data flow.
3. a kind of fast multicast wheel cutting system based on SDN is applied to video surveillance network and realizes round cut, the video monitoring net
Network further includes headend equipment, decoding device and video management server, which is characterized in that the fast multicast wheel based on SDN
Cutting system includes SDN controller and the SDN switch as multicast convergent point RP, in which:
The SDN controller is issued for receiving the decoding device round cut plan, headend equipment that video management server issues
Native multicasting address port, the regulation multicast address for decoding device distribution and port, generate round cut list；By SDN switch
The information of the multicast source and multicast entrant that report is compared with round cut list, is generated multicast and is turned multicast list, and according to wheel
Multicast is successively turned multicast list and is sent to SDN switch by the plan of cutting；
The SDN switch, the multicast source logon message issued for receiving front-end equipment generate information about multicast source, receive decoding
The multicast that equipment issues, which joins message, generates multicast entrant's information, is reported to SDN controller；It is issued according to SDN controller
Multicast turns multicast list, the destination address for the multicast data flow that modification headend equipment issues and port be decoding device multicast address and
Multicast data flow is sent decoding device by port.
4. the fast multicast wheel cutting system based on SDN as claimed in claim 3, which is characterized in that the SDN controller is also used
Flow table is parsed in issuing application layer to SDN switch；The SDN switch is also used to arrive in the round cut period of round cut in the works
Afterwards, be resolved to next headend equipment be sent to SDN switch current message be I frame when, issued further according to SDN controller
Multicast turns multicast list, the destination address for the multicast data flow that modification headend equipment issues and port be decoding device multicast address and
Multicast data flow is sent decoding device by port.
5. a kind of fast multicast wheel blanking method based on SDN, applied to the SDN controller being arranged in video monitoring system, institute
Stating video monitoring system further includes headend equipment, decoding device and video management server, which is characterized in that the video monitoring
System further includes the SDN switch as multicast convergent point RP, the fast multicast wheel blanking method based on SDN, comprising:
The native multicasting address port of decoding device round cut plan, headend equipment sending that reception video management server issues,
Regulation multicast address and port for decoding device distribution, generate round cut list；
The information about multicast source that the multicast source logon message issued according to headend equipment that SDN switch reports generates is received, and
The multicast issued according to decoding device that SDN switch reports joins message multicast entrant's information of generation；
The information of multicast source and multicast entrant are compared with round cut list, multicast is generated and turns multicast list, and according to wheel
Multicast is successively turned multicast list and is sent to SDN exchange by the plan of cutting, so that SDN switch turns multicast list according to the multicast,
The destination address and port of modifying the multicast data flow that headend equipment issues are multicast address and the port of decoding device, and multicast data flow is sent out
It is sent to decoding device.
6. the fast multicast wheel blanking method based on SDN as claimed in claim 5, which is characterized in that described based on the quick of SDN
Multicast wheel blanking method, further includes:
Application layer parsing flow table is issued to SDN switch, so that SDN switch after the round cut period of round cut in the works arrives, solves
It analyses next headend equipment and is sent to the current message of SDN switch when being I frame, the multicast that is issued further according to SDN controller
Turn multicast list, the destination address for the multicast data flow that modification headend equipment issues and port are multicast address and the end of decoding device
Mouthful, decoding device is sent by multicast data flow.
7. a kind of fast multicast wheel cutting apparatus based on SDN, applied to the SDN controller being arranged in video monitoring system, packet
It includes processor and is stored with the nonvolatile memory of several computer instructions, which is characterized in that the computer instruction quilt
The step of any one of claim 5 or claim 6 the method are realized when processor executes.
8. a kind of fast multicast wheel blanking method based on SDN, applied to the SDN switch being arranged in video monitoring system, institute
Stating video monitoring system further includes headend equipment, decoding device, video management server and SDN controller, the SDN switch
As multicast convergent point RP, which is characterized in that the fast multicast wheel blanking method based on SDN, comprising:
The multicast source logon message that receiving front-end equipment issues generates information about multicast source, receives the multicast that decoding device issues and is added
Message generates multicast entrant information, is reported to SDN controller；
It receives SDN controller and multicast list is turned according to the multicast that round cut plan successively issues, multicast list is turned according to the multicast,
The destination address and port of modifying the multicast data flow that headend equipment issues are multicast address and the port of decoding device, and multicast data flow is sent out
It is sent to decoding device；
It is to be compared the information of multicast source and multicast entrant and round cut list by SDN controller that the multicast, which turns multicast list,
After generate, decoding device round cut plan that the round cut list is issued by SDN controller according to video management server, front end
Native multicasting address port, the regulation multicast address for decoding device distribution and the port that equipment issues generate.
9. the fast multicast wheel blanking method based on SDN as claimed in claim 8, which is characterized in that described based on the quick of SDN
Multicast wheel blanking method, further includes:
The application layer parsing flow table that SDN controller issues is received to be resolved to next after the round cut period of round cut in the works arrives
Headend equipment be sent to SDN switch current message be I frame when, the multicast issued further according to SDN controller turns multicast list,
The destination address and port of modifying the multicast data flow that headend equipment issues are multicast address and the port of decoding device, and multicast data flow is sent out
It is sent to decoding device.
10. a kind of fast multicast wheel cutting apparatus based on SDN, applied to the SDN switch being arranged in video monitoring system, packet
It includes processor and is stored with the nonvolatile memory of several computer instructions, which is characterized in that the computer instruction quilt
The step of any one of claim 8 or claim 9 the method are realized when processor executes.
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