Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can realize HD video real-time Transmission,
Push numerous the Internet, applications to HD video, high definition is face-to-face.
It, can be such as high in a network platform by required service depending on networking using real-time high-definition video switching technology
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program requests, TV Mail, individual character recording (PVR), Intranet (manage) channel, intelligent video Broadcast Control, information publication by oneself
The services such as etc. tens of kinds videos, voice, picture, word, communication, data are all incorporated into a system platform, by TV or
Computer realizes that high-definition quality video plays.
For those skilled in the art is made to more fully understand the embodiment of the present invention, below to being introduced depending on networking:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Network technology innovation depending on networking improves traditional ethernet (Ethernet), potential huge on network to face
Video flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
Switching), Streaming demands are met using Packet Switching depending on networking technology.Has grouping depending on networking technology
Flexible, the simple and low price exchanged, is provided simultaneously with quality and the safety assurance of circuit switching, it is virtually electric to realize the whole network switch type
Road and the seamless connection of data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch of Ethernet are used depending on networking, eliminating Ethernet under the premise of full compatibility lacks
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal directly carries IP data packets.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can realizes at present mutually
The whole network large-scale high-definition realtime video transmission that networking can not be realized pushes numerous Internet video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, and single network layer is with regard to energy
Enough include signaling and data transmission.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
State-of-the-art real time operating system is employed, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits for typical time to be less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of ad eundem IP internets, but
The concurrent flow more than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Structural design depending on networking by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem of puzzlement internet has thoroughly been eradicated from structure, antivirus applet, fire wall has not been needed to generally, has prevented black
Visitor and the attack of virus, provide structural carefree secure network to the user.
Service innovative technology (Service Innovation Technology)
Business and transmission are merged by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications program, and can use considerably less code that complicated application can be realized, and realize the new business innovation of " endless ".
Networking depending on networking is as described below:
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, it is divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes:Node server, access switch, terminal is (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and Ethernet can be connected.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes:Metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (empty thiol point), and multiple unified videos are put down
Platform can be formed regarding networking;Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes depending on the equipment in networking:Server, interchanger is (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (or
National net, World Wide Web etc.) and access net.
The equipment of 1.2 wherein access mesh portions can be mainly divided into 3 classes:Node server, access switch is (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The particular hardware structure of each access network equipment is:
Node server:
As shown in Fig. 2, mainly include Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204;
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202;Switching engine module 202 to the packet come in look into the operation of address table 205, so as to obtain the navigation information of packet;
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206;If the queue of pack buffer 206 approaches
It is full, then it abandons;All pack buffer queues of 202 poll of switching engine mould, are forwarded if meeting the following conditions:1) port
It is less than to send caching;2) the queue package counting facility is more than zero.Disk array module 204 mainly realizes the control to hard disk, including
The operations such as initialization, read-write to hard disk;CPU module 203 is mainly responsible between access switch, terminal (not shown)
Protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration and, the configuration to disk array module 204.
Access switch:
As shown in figure 3, mainly include Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304;
Wherein, the packet (upstream data) that downstream network interface module 301 is come in is into packet detection module 305;Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
Corresponding flow identifier (stream-id) is then distributed, and enters switching engine module 303, is otherwise abandoned;Uplink network interface mould
The packet (downlink data) that block 302 is come in is into switching engine module 303;The data packet that CPU module 204 is come in enters switching engine
Module 303;Switching engine module 303 to the packet come in look into the operation of address table 306, so as to obtain the navigation information of packet;
It is gone if the packet into switching engine module 303 is downstream network interface toward uplink network interface, with reference to flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307;If the queue of the pack buffer 307 is close full,
It abandons;If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307;If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, are divided to two kinds of situations in embodiments of the present invention:
It is gone if the queue is downstream network interface toward uplink network interface, meets the following conditions and be forwarded:1)
It is less than that the port sends caching;2) the queue package counting facility is more than zero;3) token that rate control module generates is obtained;
It is gone if the queue is not downstream network interface toward uplink network interface, meets the following conditions and be forwarded:
1) it is less than to send caching for the port;2) the queue package counting facility is more than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable interval
The pack buffer queue that interface is gone toward uplink network interface generates token, to control the code check of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, configuration to address table 306 and,
Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly include Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC add modules 409, MAC removing modules 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405;Packet detection module 405 is examined
The ethernet mac DA of measured data packet, ethernet mac SA, Ethernet length or frame type, regarding networking mesh way address
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id);Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing modules 410
(2byte), and enter corresponding order caching, otherwise abandon;
Downstream network interface module 401 detects the transmission caching of the port, if there is Bao Ze regarding with networking mesh according to packet
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
Mainly include Network Interface Module, Service Processing Module and CPU module;For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module;Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module;Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes:Node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module;Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are formed.
2nd, regarding networking data package definition
2.1 access network data package definitions
The data packet for accessing net mainly includes following sections:Destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections:
DA |
SA |
Reserved |
Payload |
CRC |
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section represents type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address;
Source address (SA) is also to be made of 8 bytes (byte), is defined identical with destination address (DA);
Reserve bytes are made of 2 bytes;
Payload parts have different length according to the type of different datagrams, if being if various protocol packages
64 bytes, if single group unicast packets words be 32+1024=1056 byte, be not restricted to certainly more than 2 kinds;
CRC is made of 4 bytes, and computational methods follow the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
2 kinds can be all can exceed that between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is unique, is closed to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention:Label uniquely describes a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between device A and equipment B there are two connect, then data packet slave device A to equipment B just
There are 2 labels, data packet slave device B to device A also there are 2 labels.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of device A is 0x0000, and the label (outgoing label) when this data packet leaves device A may reform into
0x0001.The networking flow of Metropolitan Area Network (MAN) is to enter network process under centralized Control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution is all dominated by metropolitan area server, and node switch, node server are all passive execution, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:
DA |
SA |
Reserved |
Label |
Payload |
CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the form of label, which can refer to, to be defined as below:Label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Put is between the reserve bytes and payload of data packet.
Based on the above-mentioned characteristic regarding networking, it is proposed that one of the core concepts of the embodiments of the present invention, it then follows regarding the association of networking
View, audio/video flow transmitting terminal is encoded to the audio, video data packet generation redundancy packet after coding by FEC, then this is included redundancy packet
Audio, video data encapsulating dress up regarding networking data packet, be sent to receiving terminal;If packet loss occurs in transmit process, end group is received
Loss recovery processing is carried out in the redundancy packet, so as to obtain complete audio, video data.
With reference to Fig. 5, a kind of the step of point bit distribution statistical method embodiment based on depending on networking for showing the present invention, flows
Cheng Tu.The embodiment of the present invention is illustrated from depending on networking statistical server side, and this method specifically may include steps of:
Step 501, it by regarding networking protocol, is obtained from depending on networking master server depending on networking dependent server information with regarding
Networked terminals information.
In embodiments of the present invention, it before step 501, may include steps of:
Step 11, it is established and communicated to connect by IP agreement and the client.
In the concrete realization, client can obtain IP address and the port for regarding networking statistical server by configuration file
Number, so as to establish client and the TCP connection between networking statistical server by IP agreement.
Step 12, the subscription information that the client is sent is received.
It should be noted that client can send a variety of subscription information, the information subscribed to client to be provided to need
Type.In the present invention, the subscription information that client is sent is that subscription is each regarding connection under networking Union of Central Vision host server
Net dependent server and regarding networked terminals point bit distribution statistical information.
In a kind of preferable example of the embodiment of the present invention, step 501 can specifically include following sub-step:
Sub-step 21, from regarding networking master server on obtain regard networking dependent server affiliated area information, cascade shape
State information and service time information.
Sub-step 22, from affiliated area information, the communications status information obtained on networking master server regarding networked terminals
With service time information.
In the present invention, the subscription information sent based on the client received is needed from being obtained on networking master server
The information wanted.It is multiple regarding networking dependent server depending on networking master server connection, it regards and is networked eventually depending on networking dependent server connection
End.It is all stored in depending on networking dependent server information and depending on networked terminals information in networking master server.
Refer to regard networking dependent server and between networking master server depending on networking dependent server communications status information
Network communication it is whether normal.Refer to regard networked terminals and between networking dependent server depending on networked terminals communications status information
Network communication it is whether normal.
Service time information refers to regard networking dependent server information and access is regarded in networking for the first time regarding networked terminals
Time.
Step 502, networking dependent server information described will be regarded with carrying out sorting-out in statistics regarding networked terminals information, be united
Count information.
In a kind of preferable example of the embodiment of the present invention, step 502 can specifically include:
According to described in affiliated area classified statistic depending on networking dependent server with depending on the communications status of networked terminals, open when
Between and the variable quantity regarding networked terminals.
In embodiments of the present invention, it is each depending on networking dependent server with can be carried out as unit of provincial depending on networked terminals
Classified statistic, and then count and regard networking dependent server and the communications status regarding networked terminals, service time and regarding networked terminals
Daily variation.
Step 503, the statistical information is sent to client to show.
In the concrete realization, step 503 can specifically include:
By IP agreement, the statistical information is periodically sent to client and is shown.
User Datagram Protocol (User Datagram Protocol, abbreviation UDP) broadcast data can specifically be passed through
It wraps to the client of all connections.
UDP is a kind of nothing in OSI (Open System Interconnection, open system interconnection) reference model
The transport layer protocol of connection provides the simple unreliable information transmission service towards affairs, and IETF RFC 768 are the formal of UDP
Specification.UDP is 17 in the protocol number of IP packet.
After obtaining statistical information, statistical information can be preserved to database.Depending on networking staqtistical data base can timing from
Statistical information is obtained in database, is shown to be sent to client,
In embodiments of the present invention, client carries out display statistical information using large-size screen monitors, and can be by statistical information on ground
Be shown on figure, so as to show each province regard networking dependent server with regarding networked terminals distribution situation, Jin Erneng
Enough clearly, the portfolio to each region and the ratio occupied in the whole nation are visually known.Alternatively, the form for passing through table
Show each province regards networking dependent server with regarding networked terminals distribution situation, the invention is not limited in this regard.
In conclusion the embodiment of the present invention apply regarding networking characteristic, by from regarding networking master server on obtain regard connection
Net dependent server information is with after the networked terminals information, then carrying out sorting-out in statistics and obtaining statistical information, finally by statistical information
It is sent to client to be shown, so as to which in real time, accurately and rapidly statistics regards networking dependent server and regarding networked terminals
Quantity and variable quantity, and can clearly, be visually known to each region portfolio and the whole nation occupy ratio,
Reduce the workload manually counted.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
It closes, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because according to
According to the embodiment of the present invention, certain steps may be used other sequences or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
With reference to Fig. 6, a kind of structure diagram for regarding networking statistical server embodiment of the present invention is shown, which can
To include:
Acquisition module 601, for by regarding networking protocol, networking dependent server to be regarded from being obtained on networking master server
Information is with regarding networked terminals information.
In a kind of preferable example of the embodiment of the present invention, which includes:
First acquisition unit, for believing from the affiliated area obtained on networking master server regarding networking dependent server
Breath, tandem states information and service time information.
Second acquisition unit, for from regarding networking master server on obtain regarding networked terminals affiliated area information, communication
Status information and service time information.
Sorting-out in statistics module 602, for by it is described depending on networking dependent server information with uniting depending on networked terminals information
Meter arranges, and obtains statistical information.
In a kind of preferable example of the embodiment of the present invention, which includes:
Sorting-out in statistics unit, for according to regarded described in affiliated area classified statistic networking dependent server with regarding networked terminals
Communications status, service time and the variable quantity regarding networked terminals.
Sending module 603 shows for the statistical information to be sent to client.
In embodiments of the present invention, which includes:
The statistical information for passing through IP agreement, is periodically sent to client and shown by transmitting element.
In a kind of preferable example of the embodiment of the present invention, which further includes:
Communication connection module is established, communication connection is established with the client for passing through IP agreement;
Subscription information receiving module, for receiving the subscription information that the client is sent.
In conclusion the embodiment of the present invention applies the characteristic regarding networking, by acquisition module from networking master server
It obtains after regarding networking dependent server information and regarding networked terminals information, then sorting-out in statistics is carried out by sorting-out in statistics module and is obtained
Statistical information is sent to client finally by sending module and shown, so as to real-time, accurate, fast by statistical information
Fast geo-statistic regards the networking dependent server and quantity and variable quantity regarding networked terminals, and can clearly, be visually known it is each
The portfolio in a region and the whole nation occupy ratio, decrease the workload manually counted.
For device (system) embodiment, since it is basicly similar to embodiment of the method, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are with
The difference of other embodiment, just to refer each other for identical similar part between each embodiment.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or box combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction generation is used to implement in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device for the function of specifying.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory generates packet
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps are performed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction offer performed on computer or other programmable terminal equipments is used to implement in one flow of flow chart or multiple flows
And/or specified in one box of block diagram or multiple boxes function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, those skilled in the art once know base
This creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed to
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrapped
Those elements are included, but also including other elements that are not explicitly listed or are further included as this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, it is wanted by what sentence "including a ..." limited
Element, it is not excluded that also there are other identical elements in the process including the element, method, article or terminal device.
Networking statistics is regarded to a kind of point bit distribution statistical method based on regarding networking provided by the present invention and one kind above
Server is described in detail, and specific case used herein is expounded the principle of the present invention and embodiment,
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention;Meanwhile for the one of this field
As technical staff, thought according to the present invention, there will be changes in specific embodiments and applications, to sum up institute
It states, the content of the present specification should not be construed as limiting the invention.