Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific realApplying 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 be realized HD video real-time Transmission,Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required serviceClear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoringField live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publicationAll be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV orComputer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:
Depending on networking, applied portion of techniques is as described below:
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on networkVideo flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice networkSwitching), Streaming demand is met using Packet Switching depending on networking technology.Has grouping depending on networking technologyFlexible, the simple and low price of exchange, is provided simultaneously with the quality and safety assurance of circuit switching, it is virtually electric to realize the whole network switch typeThe seamless connection of road and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lackIt falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basisIt 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 be realized at present mutuallyThe whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network 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 platformTransmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energyEnough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming MediaComplexity 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 andUsing state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, mediaContent is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizesSector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, butThe concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every timeThe network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented blackThe attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a netThe 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 richThe multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "Complicated applications programming, considerably less code, which can be used, can be realized complicated application, 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. classType, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being 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 (including various machinesTop box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phasesEven, and it can connect Ethernet.
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 serveDevice.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 endPoint, 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 serveDevice.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 areaThe 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 (part in virtual coil), and multiple unified videos are flatPlatform can form view 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: server depending on the equipment in networking, interchanger (including etherNet gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (orNational net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including etherNet gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment are as follows:
Node server:
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk arrayModule 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engineModule 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, 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 is closeIt is full, then it abandons；All pack buffer queues of 202 poll of switching engine mould, are forwarded: 1) port if meeting the following conditionsIt is less than to send caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, includingThe operation 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 including Network Interface Module (downstream network interface module 301, uplink network interface module302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mouldWhether 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,It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mouldThe packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 204 is come in enters switching engineModule 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with 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 packetNavigation 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:
If the queue is that downstream network interface is gone 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 greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded:1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable intervalInterface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,Configuration to rate control module 308.
Ethernet association turns gateway:
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao HuanStorage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examinedEthernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking destination address of measured data packetDA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meetingIdentifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410(2byte), and enter corresponding receive and cache, otherwise abandon；
Uplink network interface module 401 detects the transmission caching of the port, if there is Bao Ze is according to the view of packet networking purposeAddress D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gatewaySA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal:
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including networkMouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engineModule, 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 includesNetwork Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
Access net data packet mainly include 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:
Wherein:
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packetDiscuss 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 as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages64 bytes are 32+1024=1056 byte if it is single group unicast packets, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows 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 equipmentIt can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node serverConnection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipmentSystem, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specificationChange) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B justThere are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet entersThe label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into0x0001.The networking process 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 be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point withThe 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.ItsIn, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its positionSet is between the reserve bytes and payload of data packet.
Based on the above-mentioned characteristic of view networking, one of the core concepts of the embodiments of the present invention is proposed, it then follows regard the association of networkingView, by sending heartbeat packet depending on each service into Distributed Application of networking and receiving reply packet, based on the reply packet receivedDetermine the state of each service.
Referring to Fig. 5, a kind of step flow chart of heartbeat processing method provided in an embodiment of the present invention is shown, this method canTo be applied in view networking, this method can be executed by message center, can specifically include following steps:
Step 501, the view networking number based on service each in Distributed Application, establishes the view with each service respectivelyNetworking connection.
It include at least two services in Distributed Application.When service each in Distributed Application is accessed view networking, needCorresponding view networking number is distributed for each service, message center can network based on the view of service each in Distributed ApplicationNumber, it initiates to call to each service respectively by view networking, when each service answers calling, establish and each serviceIt is connected depending on networking.
It establishes to network with the view of each service respectively and connect, specifically can be through the access net and Metropolitan Area Network (MAN) in view networkingThe calling transmission is given to each service respectively, when the calling is answered in each service, by regarding access net and city in networkingDomain net is respectively that message center and each service distribute communication channel, the communication channel of distribution be foundation message center with it is eachThe view of service, which is networked, to be connected, subsequent to connect transmission heartbeat packet based on view networking and reply packet.
Step 502, it with setpoint frequency, will be sent respectively by described depending on networking connection based on the heartbeat packet depending on networking protocolGive the corresponding each service of the heartbeat packet.
Based on view networking protocol, generates heartbeat packet corresponding with each service and led to the heartbeat packet of generation with setpoint frequencyIt crosses and is sent to the corresponding service of the heartbeat packet depending on networking connection.Specifically it can be, it, will be based on view networking protocol with setpoint frequencyHeartbeat packet is sent in view networking, by view network in access net and Metropolitan Area Network (MAN) heartbeat packet is transferred to purpose service.
In a kind of specific embodiment, described with setpoint frequency, it will be passed through based on the heartbeat packet depending on networking protocolIt is described depending on networking connection be sent to each service before, can also include:
According to the networking number of the view of each service, based on the 8F85 agreement in the view networking protocol, by heartbeat signalingIt is encapsulated as heartbeat packet corresponding with each service.
Wherein, the specification of 8F85 agreement is as shown in table 1, and the heartbeat signaling is located at the 5-26 field of the heartbeat packet.For the heartbeat signaling as operation code parameter, concrete norm can be as shown in table 2, i.e., heartbeat signaling can be located at the of heartbeat packet5 fields, this is a kind of citing, and not as restriction, heartbeat signaling may be located on any in the 6-26 field of heartbeat packetIn field.When sending heartbeat packet, each purpose service serviced respectively as heartbeat packet, so the view networking number of purpose serviceAs the destination server number in table 1, positioned at the 30th field of heartbeat packet.8F85 agreement is the proprietary protocol in view networking,To improve the safety of transmission, while safety guarantee is also provided as double layer network depending on networking.
1 8F85 protocol specification of table
2 8F85 agreement operation code parameter of table
| Field number | Length | Code | Explanation |
| 5 | 1W | 0x1085 | Send heartbeat signaling |
| | | |
In this practical application, networking is regarded as the network with centralized control functions, including main control server and undernetEquipment, which includes terminal, and one of the core idea depending on networking is, by notifying to exchange by main control serverEquipment is directed to when time downstream communications link of service matches table, and the table for being then based on the configuration carries out the transmission of data packet.
That is, including: depending on the communication means in networking
Main control server configuration is when time downstream communications link of service；
Work as time data packet (such as heartbeat packet) of service for what source terminal (such as message center) was sent, according to the downlink communicationLink is sent to target terminal (each service in such as Distributed Application).
In embodiments of the present invention, it includes: notice when the downlink of secondary service is logical that time downstream communications link of service is worked as in configurationBelieve that switching equipment involved in link matches table；
It furthermore, include: the configured table of inquiry according to downstream communications link transmission, switching equipment is received to instituteData packet is transmitted by corresponding port.
In the concrete realization, service includes unicast communication service and Multicast Communication Service.I.e. either cast communication is stillUnicast communication can realize the communication in view networking using the above-mentioned core idea with table-table.
As previously mentioned, view networking includes access mesh portions, in access net, which is node server, underThe grade network equipment includes access switch and terminal.
For the unicast communication service in access net, the main control server configuration is when time downlink communication chain of serviceThe step of road, may comprise steps of:
Sub-step S11, the service request protocol package that main control server is initiated according to source terminal are obtained when time downlink of serviceCommunication link information, downstream communications link information include participating in when time downlink of the main control server of service and access switchCommunication port information；
Sub-step S12, downstream communication ports information of the main control server according to main control server, data packet inside itThe downlink port that setting is oriented to when time data packet of service in address table；And believe according to the downstream communication ports of access switchBreath, to corresponding access switch sending port configuration order；
Sub-step S13, access switch according in port configuration command data packet addressed table inside it, setting when timeThe downlink port that the data packet of service is oriented to.
For the Multicast Communication Service (such as heartbeat processing) in access net, main control server is obtained when under time serviceThe step of row communication link information may include following sub-step:
Sub-step S21, main control server obtain the service request agreement for the application Multicast Communication Service that target terminal is initiatedIt wraps, includes the access net address of service type information, service content information and target terminal in service request protocol package；Wherein,It include service number in service content information；
Sub-step S22, main control server according to the service number in preset content-address mapping table, extraction sourceThe access net address of terminal；
Sub-step S23, main control server obtains the corresponding multicast address of source terminal, and distributes to target terminal；And according toAccording to the access net address of service type information, source terminal and target terminal, the communication link information when time multicast services is obtained.
Step 503, depending on the reply packet received of networking, the state of each service is determined according to by described.
After a heartbeat packet is sent to the corresponding service of the heartbeat packet, if receiving the service within the set timeReply packet, it is determined that the state of the service is presence；If being not received by the reply packet of the service within the set time,The state for determining the service is the state that goes offline.
In a kind of specific embodiment, the basis, depending on the reply packet received of networking, is determined by describedThe state of each service, comprising:
If sending in the setting time after heartbeat packet, by it is described depending on networking receive reply packet when, based on regard8785 agreements in networking protocol parse the reply packet, obtain sending the service for replying packet, determine the state of the serviceFor presence；
If being not received by the corresponding reply packet of the heartbeat packet, it is determined that should sending in the setting time after heartbeat packetThe state of the corresponding service of heartbeat packet is the state that goes offline.
Wherein, the specification of 8785 agreement is as shown in table 3, and the reply signaling for replying packet is located at the reply packet4-25 field.The reply signaling is as operation code parameter, and concrete norm can be as shown in table 4, i.e., heartbeat signaling can positionIn the 5th field for replying packet, this is a kind of citing, and not as restriction, replying signaling may be located on replying the 4th field of packetOr in the either field in 6-25 field.Replying packet is the number that message center is sent to by each service in Distributed ApplicationAccording to each service is respectively as the initial plant and source device for replying packet, so the view networking number of each service is as in table 1Initial plant number and source device number, initial plant number are located at the 2nd field for replying packet, and source device number, which is located at, replys packetThe 26th field.8785 agreements are the proprietary protocol in view networking, to improve the safety of transmission, while regarding networking conductDouble layer network also provides safety guarantee.
3 8785 protocol specification of table
4 8785 agreement operation code parameter of table
| Field number | Length | Code | Explanation |
| 5 | 1W | 0x1086 | Reply heartbeat signaling |
| | | |
If heartbeat packet is to be sent to each service simultaneously, receive within the set time reply packet when, can to returnMultiple packet is parsed, and determines the service for sending the reply packet, so that it is determined that the state of the service is presence.If sendingHeartbeat packet is not received by the reply packet of the service, it is determined that the state of the service is in the setting time after a serviceGo offline state.
In a kind of specific embodiment, after the state of each service of the determination, further includes:
If the state of a service continuously sets number as the state of going offline, it is determined that the service is offline, and enables the serviceBackup services.
Wherein, setting number is preset for the number of state of continuously going offline when being determined as offline, such as can be withFor three times.
Continuously setting number in the state that one services is the state of going offline, it is determined that the service is in off-line state, hairAlarm out, and in order to guarantee not influence normally to service, enables the backup services of the service, from backup services to service objectService is provided.
Heartbeat processing method provided in this embodiment is divided by the view networking number based on service each in Distributed ApplicationIt Jian Li not network and connect with the view of each service, the heartbeat packet based on view networking protocol is networked by the view with setpoint frequencyIt connects and is sent respectively to each service corresponding with the heartbeat packet, it is described depending on the reply received of networking according to passing throughPacket, determines the state of each service, and since the processing speed of view networking is fast, and delay is low, to send more frequency in heartbeatWill not cause network congestion when numerous, and be depending on networking packet loss is solved the problems, such as based on double layer network, so that it is determined thatService state is more accurate.
Referring to Fig. 6, a kind of step flow chart of heartbeat processing method provided in an embodiment of the present invention, the present embodiment are shownIt is a specific example on the basis of the above embodiments, is specifically illustrated by taking a medical applications platform as an example, it is assumed thatIt include that direct broadcast service, conference service and resource service are split out in a message in order to avoid the platform is too fat to move under the platformThe heart, for safeguarding the state of each service.Fig. 7 is the schematic diagram of the transmission heartbeat packet and reply packet in the embodiment of the present invention, such asShown in Fig. 7, heartbeat packet and reply Bao Jun between message center and direct broadcast service, conference service and resource service pass through view networkingIt is transmitted.This method can specifically include following steps:
Step 601, message center is established to connect with the networking of the view of direct broadcast service, conference service and resource service respectively.
Step 602, message center will be sent to corresponding with heartbeat packet with setpoint frequency based on the heartbeat packet depending on networking protocolEach service.
Step 603, when message center receives the reply packet of service within the set time, determine the service state beLinear state；When message center does not receive the reply packet of service within the set time, determine that the state of the service is the state that goes offline.
Step 604, if a service is three times continuously the state that goes offline, message center determines that the service is offline.
Heartbeat processing method provided in this embodiment by view networking transport heartbeat packet and replys packet, due to being joined due to viewThe processing speed of net is fast, and delay is low, to will not cause network congestion when heartbeat sends more frequent, and regards connectionNet be packet loss is solved the problems, such as based on double layer network, so that it is determined that service state it is more accurate.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the methodIt closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according toAccording to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also shouldKnow, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implementedNecessary to example.
Referring to Fig. 8, a kind of structural block diagram of heartbeat processing unit provided in an embodiment of the present invention is shown, which can be withApplied in view networking, following module can specifically include:
Connection establishment module 801, for based on service each in Distributed Application view networking number, respectively establish with it is describedThe view of each service, which is networked, to be connected；
Heartbeat sending module 802, for setpoint frequency, the heartbeat packet based on view networking protocol to be networked by the viewConnection is sent respectively to each service corresponding with the heartbeat packet；
State determining module 803, for, depending on the reply packet received of networking, determining each service according to by describedState.
Optionally, described device further include:
Heartbeat packet package module, for according to the view of each service networking number, based in the view networking protocolHeartbeat signaling is encapsulated as heartbeat packet corresponding with each service by 8F85 agreement.
Optionally, the heartbeat signaling is located at the 5-26 field of the heartbeat packet.
Optionally, the state determining module is specifically used for:
If sending in the setting time after heartbeat packet, by it is described depending on networking receive reply packet when, based on regard8785 agreements in networking protocol parse the reply packet, obtain sending the service for replying packet, determine the state of the serviceFor presence；
If being not received by the corresponding reply packet of the heartbeat packet, it is determined that should sending in the setting time after heartbeat packetThe state of the corresponding service of heartbeat packet is the state that goes offline.
Optionally, the reply signaling for replying packet is located at the 4-25 field for replying packet.
Optionally, described device further include:
Off-line state determining module, if the state serviced for one continuously sets number as the state of going offline, it is determined that shouldService is offline, and enables the backup services of the service.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simplePlace illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are withThe difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculateMachine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software andThe form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer canWith in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program codeThe form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer programThe 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 instructionsIn each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide theseComputer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminalsStandby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devicesCapable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagramThe device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devicesIn computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packetThe manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagramThe function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so thatSeries of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thusThe instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchartAnd/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows basesThis creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted asIncluding 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 byOne entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operationBetween there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaningCovering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrapThose elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, articleOr the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limitedElement, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to a kind of heartbeat processing method provided by the present invention and a kind of heartbeat processing unit, detailed Jie has been carried outIt continues, used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is onlyIt is to be used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this hairBright thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not manageSolution is limitation of the present invention.