CN106713138A

CN106713138A - Cross-domain transmission method and apparatus of streaming data

Info

Publication number: CN106713138A
Application number: CN201611264037.0A
Authority: CN
Inventors: 刘东东; 钟健男
Original assignee: Beijing Qihoo Technology Co Ltd
Current assignee: Beijing Qihoo Technology Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2017-05-24
Also published as: WO2018121741A1

Abstract

The invention discloses a cross-domain transmission method of streaming data. Main transmission nodes separately deployed in a plurality of areas communicate with one another through communication cables, and the method comprises the following steps: receiving a transmission path acquisition request sent by a first main transmission node of a first area; selecting a transmission path from the first main transmission node to a second main transmission node of a second area, wherein the selected transmission path satisfies set requirements; and sending the selected transmission path to the first main transmission node, so that the first main transmission node transmits streaming data according to the transmission path. By adoption of the cross-domain transmission method disclosed by the embodiment of the invention, the transmission process is greatly simplified, the cross-domain transmission efficiency is improved, the problems of relatively high transmission delay caused by long links and numerous nodes of the traditional backbone network, meanwhile the anti-interference ability is greatly improved, and the transmission quality of the streaming data in cross-domain, cross-operator transmission, high-peak time period and other scenes is ensured.

Description

The cross-domain transmission method and device of a kind of flow data

Technical field

The present invention relates to communication technical field, and in particular to the cross-domain transmission method and a kind of flow data of a kind of flow data Cross-domain transmitting device.

Background technology

Flow data is can be by the way of stream transmission in the data of transmission over networks, and flow data is carried out between city Cross-domain transmission needs to be realized using traditional backbone network (Backbone Network).Backbone network be for connection to multiple regions or The express network in area, the bearing capacity of backbone network turns into the bottleneck of influence data transmission performance.

Traditional backbone network is built on multi-level network structure basis, when flow data is transmitted, because of transmission Link is oversize, and intermediate node is excessive, and transmitting procedure is extremely complex, and transmission delay on the one hand can be caused higher；On the other hand, biography is worked as A link goes wrong (flow that such as certain node is subjected to other directions is occupied) during defeated, may result in flow data biography Defeated to break, antijamming capability is weaker.If being related to cross operator transmission in cross-domain transmission, due to being related in route Turn, the incompatible problem of bandwidth, then the transmission quality that can directly result in flow data is worse.

In net cast application or remote camera application, the transmission performance requirement of stream data is higher, and uses Traditional backbone network carries out cross-domain transmission cannot then meet this requirement.The transmission of flow data is especially carried out in peak period When, transmission quality it is difficult to ensure that.And the transmission path between transmission node generally all sets in advance, underaction, it is impossible to Transmission path is adjusted according to the actual requirements, once the transmission path of setting goes wrong and can influence the transmission of flow data.

The content of the invention

In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on State the cross-domain transmission method and corresponding device of a kind of flow data of problem.

According to one aspect of the present invention, there is provided a kind of cross-domain transmission method of flow data, portion is distinguished in multiple regions The main transmission node of administration is connected using the communications cable, and methods described includes：

Receive the transmission path acquisition request that the first main transmission node of first area sends；

Choose the transmission path of the described first main transmission node to the second main transmission node of second area, selected biography Defeated path meets sets requirement；

Selected transmission path is issued to the described first main transmission node, for the described first main transmission node according to The transmission path flow data.

Alternatively, the transmission path that the first of the reception first area the main transmission node sends obtains request to be included：

The flow data for receiving the client transmission of the second area pulls request；

Before the selection first main transmission node to the transmission path of the second main transmission node of second area, Methods described also includes：

The first main transmission node of the flow data for providing asked is searched, and notifies the described first main transmission node to described Second main transmission node transmission flow data.

Alternatively, the first main transmission node for searching the flow data for providing asked includes：

Search the multiple main transmission node of the flow data for providing asked；

Choose the first main transmission node that configured transmission meets sets requirement.

Receive the flow data push request that the client of the first area sends；

The transmission path of second main transmission node of the selection first main transmission node to second area includes：

The described first main transmission node to is chosen respectively as second area in each region outside using the first area The transmission path of the second main transmission node in two regions.

Alternatively, the transmission path of second main transmission node of the selection first main transmission node to second area Including：

Count the described first main transmission node through main transmission node in the middle of at least one to the described second main transmission node it Between many transmission paths；

The transmission performance of each transmission paths is calculated, and chooses the object transmission path that transmission performance meets sets requirement.

Alternatively, the transmission performance for calculating each transmission paths includes：

Calculate the transmission performance of the subpath of two neighboring main transmission node composition in the transmission path；

The transmission performance of comprehensive subpath, obtains the transmission performance of the transmission path.

Alternatively, the transmission performance of the subpath for calculating two neighboring main transmission node composition in the transmission path Including：

Nodal distance and/or node-node transmission parameter according to two neighboring main transmission node calculate the transmission of the subpath Performance.

Alternatively, the transmission road of the second main transmission node in the selection first main transmission node to second area Before footpath, methods described also includes：

Obtain the nodal distance and/or node-node transmission parameter of two neighboring main transmission node, the node-node transmission parameter bag Include transmission speed.

Alternatively, methods described also includes：

The path failure information of the described first main transmission node feedback is received, the path failure information carries the transmission The current main transmission node that data have been reached；

Choose the transmission path of the current second main transmission node of the main transmission node to second area.

Alternatively, the main transmission node of two neighboring target area is attached using the communications cable, so that all Main transmission node connection.

Alternatively, when the first area is non-conterminous with the second area, the first main transmission node is by the stream The main transmission node of at least one intermediate conveyor that data are connected through the communications cable, transmits to the second main biography of second area Defeated node.

Alternatively, the flow data that the described first main transmission node pushes client through sub- transmission node in one's respective area, warp The communications cable is transmitted to the second main transmission node of multiple second areas, will by the second main transmission node of each second area The all sub- transmission node that the Stream Data Transmission is extremely included.

Alternatively, the described first main transmission node transmission node or local client for obtaining second area from one's respective area The flow data of end request transmission, transmits to the second main transmission section of second area residing for the client through the communications cable Point, the Stream Data Transmission is extremely connected with the client sub- transmission node by the described second main transmission node.

According to another aspect of the present invention, there is provided a kind of cross-domain transmitting device of flow data, portion is distinguished in multiple regions The main transmission node of administration is connected using the communications cable, and described device includes：

Request receiving module is obtained, the transmission path that the main transmission node of first for receiving first area sends is obtained please Ask；

Transmission path chooses module, the second main transmission node for choosing the described first main transmission node to second area Transmission path, selected transmission path meets sets requirement；

Transmission path issues module, for selected transmission path to be issued into the described first main transmission node, for The first main transmission node is according to the transmission path flow data.

Alternatively, the acquisition request receiving module, the stream that the client specifically for receiving the second area sends Data pull is asked；

Described device also includes：

First node searching modul, in the second main biography for choosing the first main transmission node to second area Before the transmission path of defeated node, the first main transmission node of the flow data for providing asked is searched, and notify first master Transmission node is to the described second main transmission node transmission flow data.

Alternatively, the first node searching modul includes：

Multiple node checks submodules, the multiple main transmission node for searching the flow data for providing asked；

First node chooses submodule, and the first main transmission node of sets requirement is met for choosing configured transmission.

Alternatively, the acquisition request receiving module, the stream that the client specifically for receiving the first area sends Data-pushing is asked；

The transmission path chooses module, specifically for using each region outside the first area as second area, The transmission path of the described first main transmission node to the second main transmission node of second area is chosen respectively.

Alternatively, the transmission path is chosen module and is included：

Mulitpath statistic submodule, for counting the described first main transmission node through at least one main transmission node in centre Many transmission paths between to the described second main transmission node；

Destination path calculating sub module, for calculating the transmission performance of each transmission paths, and chooses transmission performance and meets The object transmission path of sets requirement.

Alternatively, the destination path calculating sub module includes：

Transmission performance computation subunit, the sub- road for calculating two neighboring main transmission node composition in the transmission path The transmission performance in footpath；

Transmission performance synthesis subelement, for the transmission performance of comprehensive subpath, obtains the transporting of the transmission path Energy.

Alternatively, the transmission performance computation subunit, specifically for the nodal point separation according to two neighboring main transmission node From and/or node-node transmission parameter calculate the transmission performance of the subpath.

Alternatively, described device also includes：

Distance parameter acquisition module, in the second main biography for choosing the first main transmission node to second area Before the transmission path of defeated node, the nodal distance and/or node-node transmission parameter of two neighboring main transmission node, the section are obtained Point configured transmission includes transmission speed.

Alternatively, described device also includes：

Path failure information receiver module, the path failure information for receiving the described first main transmission node feedback, institute State path failure information and carry the current main transmission node that the transmission data have been reached；

Current path chooses module, the second main transmission node for choosing the current main transmission node to second area Transmission path.

According to the embodiment of the present invention, using the main transmission node disposed respectively in communications cable connection regional, from the When the first main transmission node in one region pushes flow data, directly can first be transmitted by the communications cable between main transmission node To the second main transmission node of second area, the sub- transmission node in the second area is further transmitted to so that flow data Cross-domain transmission no longer needs to be carried out by traditional backbone network, greatly simplifies transmitting procedure, improves the efficiency of cross-domain transmission, Overcome that traditional backbone link is long, node many and cause transmission delay problem higher, while antijamming capability is greatly improved, Backbone network complexity transmitting procedure can be overcome causes the shortcoming of transmission broken string because certain node goes wrong, it is ensured that cross-domain Simultaneously under the scene such as cross operator transmission, peak period Stream Data Transmission transmission quality.

Further, the transmission path for being sent by receiving the first of first area the main transmission node obtains request, chooses institute The transmission path of the first main transmission node to the second main transmission node of second area is stated, selected transmission path meets setting It is required that, selected transmission path is issued to the described first main transmission node, so that the described first main transmission node is according to institute Transmission path flow data is stated, main transmission node of the flow data from the main transmission node in region to other regions is realized Transmission path can flexibly select, transmission path is selected according to the actual requirements, it is to avoid the transmission path for setting in advance occurs The problem that cannot be transmitted caused by failure.

Described above is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, And can be practiced according to the content of specification, and in order to allow the above and other objects of the present invention, feature and advantage can Become apparent, below especially exemplified by specific embodiment of the invention.

Brief description of the drawings

By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：

The step of Fig. 1 shows the cross-domain transmission method of according to embodiments of the present invention one flow data schematic flow sheet；

The step of Fig. 2 shows the cross-domain transmission method of according to embodiments of the present invention two flow data schematic flow sheet；

Fig. 3 shows the structured flowchart of the cross-domain transmitting device of according to embodiments of the present invention three flow data.

Specific embodiment

The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here Limited.Conversely, there is provided these embodiments are able to be best understood from the disclosure, and can be by the scope of the present disclosure Complete conveys to those skilled in the art.

Embodiment one

Reference picture 1, show according to embodiments of the present invention one flow data cross-domain transmission method the step of flow illustrate Figure, specifically may include steps of：

Step 101, receives the transmission path acquisition request that the first main transmission node of first area sends.

Flow data is can be by the way of stream transmission in the data of transmission over networks, and flow data can be from a node It is transferred at least one transmission node.Main transmission node is for transmitting one of transmission node of flow data, main transmission node Can be by least one server group into being deployed with least one main transmission node, different main transmission sections in a region The network of point can be provided by different Virtual network operators, and main transmission node can be set up with least one sub- transmission node and connect Connect, sub- transmission node can be connected directly or via at least one sub- transmission node with client foundation, by all main transmission sections The transmission network of point and sub- transmission node composition is mainly used in transmitting flow data.

The communications cable is the general name of the various wires of transmitting telecommunication number or optical signal, mainly has covered wire, aerial line, leads to Communication cable and communications optical cable.Connection refers to that carrying out that can be direct or indirect between transmission node is in communication with each other.In multiple regions The main transmission node disposed respectively is connected using the communications cable, that is to say, that between being deployed in two main transmission nodes of different zones The transmission of flow data can be directly or indirectly carried out, to realize the cross-domain transmission of flow data.In the present invention, specifically use The communications cable can be selected according to actual needs, the invention is not limited in this regard, and a kind of preferred communications cable can be adopted Use bidirectional optical fiber.

In implementing, the transmission of flow data needs to be realized through content distributing network mostly, sets up content distributing network Meeting region-by-region deployment transmission node, for example, dispose main transmission node, wherein north respectively in regions such as Beijing, Shanghai, Guangzhou, Shenzhen The network of the main transmission node in capital can be provided by Beijing UNICOM, and the network of the main transmission node in Shanghai can be carried by Shanghai Telecom For can directly or indirectly carry out the transmission of flow data between the main transmission node in Beijing and Shanghai.

The application scenarios of the transmission of flow data include net cast application scenarios and remote camera application scenarios, it is specific and Speech, in net cast application scenarios, the video recorded is sent at least one by net cast client with streaming manner Individual transmission node, so as to other clients can be obtained；In remote camera application scenarios, remote camera client handle The video of recording is sent at least one transmission node with streaming manner, so as to other clients can be obtained.

In embodiments of the present invention, transmission path refers to be passed through to another main transmission node from a main transmission node Intermediate conveyor transmission node and the path that is constituted of the communications cable.First main transmission node can be passed by one or more Defeated path is by the second of Stream Data Transmission to second area the main transmission node.Management node can be flow data selection transmission section Point, the first main transmission node of first area is asked to the acquisition that management node sends transmission path, and management node receives first The transmission path that main transmission node sends obtains request.

Step 102, chooses the transmission path of second main transmission node of the first main transmission node to second area.

In embodiments of the present invention, transmission path meets transmission performance of the sets requirement including transmission path and meets setting It is required that, the transmission node minimum number passed through in transmission path, randomly select in the transmission path that can be connected one or The transmission path not selected in a period of time.Sets requirement can according to the actual requirements determine that the present invention is not limited this It is fixed.

Specifically, a kind of selection mode can choose the transmission path of the requirement that transmission performance meets setting.Wherein, Transmission performance refer to transmit flow data transmission path transmittability, specifically can according to the distance between node, transmission speed, Data loss rate, clogged conditions etc. determine the transmission performance of transmission path.All direct communications are regularly updated in management node Transmission performance between two main transmission nodes of cable connection, according to each between the first main transmission node and the second main transmission node The transmission performance of transmission path, chooses the transmission path that wherein transmission performance meets the requirements or transmission performance is best.

Another selection mode can choose the transmission path of the transmission node minimum number passed through.On a plurality of transmission road The transmission path of transmission node minimum number is chosen in footpath, in this manner it is possible to take minimum transfer resource complete flow data from Transmission of first transmission node to the second transmission node.

Another selection mode can be chosen at the transmission path not selected in a period of time.If had in history Flow data is transmitted to the second main transmission node from the first main transmission node, then the selection for having transmission path in management node is gone through History, when there is new flow data to be transmitted to the second main transmission node from the first main transmission node, can not have within a period of time One is chosen in each transmission path for selecting, causes the transmission node on the path to be born to avoid choosing always same paths Carry overweight.

Step 103, the described first main transmission node is issued to by selected transmission path, for the described first main transmission Node is according to the transmission path flow data.

In embodiments of the present invention, the transmission path of selection is sent to the first main transmission node, the first main transmission node Flow data and transmission path are sent to transmission path according to choosing the next main transmission node in transmission path, according to this side Formula, flow data and transmission path is constantly sent to the next main transmission node in transmission path, until flow data is transmitted To the second main transmission node, flow data is completed along the transmission path chosen from the first main transmission node to the second main transmission node Transmission.

In embodiments of the present invention, it is preferable that when the client request of second area pulls flow data, the reception The transmission path that the first main transmission node in one region sends obtains being implemented as request：Receive the visitor of the second area The flow data that family end sends pulls request；In the second main transmission section for choosing the first main transmission node to second area Before the transmission path of point, the first main transmission node of the flow data for providing asked is searched, and notify the described first main transmission Node is to the described second main transmission node transmission flow data.

Specifically, after the client of first area sends the request for pushing flow data to management node, in management node The flow data that is stored with is pushed to the information of the first main transmission node.The client of second area is sent to this to management node Flow data pulls request, and management node pulls request according to this, find the main transmission section that can provide asked flow data Point is for after the first main transmission node, management node notifies client transmissions flow data of the first main transmission node to second area.

In embodiments of the present invention, it is preferable that the first main transmission node for searching the flow data for providing asked During a kind of implementation：Search the multiple main transmission node of the flow data for providing asked；Selection configured transmission meets setting will The the first main transmission node asked.

Specifically, the main transmission node that can provide asked flow data has multiple, chooses one of them as One main transmission node.Configured transmission refers to the loading condition for describing main transmission node, the parameter of network connection status.According to each The configured transmission of main transmission node is chosen.The master that configured transmission meets sets requirement is selected in multiple main transmission nodes , used as the first main transmission node, the parameter of such as loading condition is not above setting value and/or number of network connections does not have for transmission node Have more than the main transmission node of setting value.Specific sets requirement can be adjusted as needed, the invention is not limited in this regard.

In embodiments of the present invention, it is preferable that in the transmission path that the first main transmission node for receiving first area sends Before obtaining request, the flow data of request transmission is obtained.Main transmission node can get via at least one sub- transmission node The flow data of client request transmission.When the flow data of request hits on transmission node, transmission node directly provides fluxion According to；When the flow data of request fails to be hit on transmission node, transmission node can be obtained from upper level transmission node and asked Flow data, is available to ask the service of flow data.

Specifically, when the client request of first area pushes flow data to main transmission node, the of first area One main transmission node receives the flow data that client is pushed through sub- transmission node in one's respective area；When the client request of second area When obtaining flow data, and now there is the flow data of one's respective area client push in first area on sub- transmission node, from the firstth area Sub- transmission node obtains the flow data of the client request transmission of second area in domain；When the client request of second area is obtained During flow data, and now there is the fluxion that one's respective area client pushes through sub- transmission node on the first of first area the main transmission node According to from the flow data of the client request transmission of the first main transmission node extraction second area of first area.

In embodiments of the present invention, it is preferable that the client request in first area pushes flow data to main transmission node When, being implemented as the flow data of transmission is asked in the acquisition：Client is received to be pushed to through sub- transmission node in one's respective area The flow data of the first main transmission node of first area.

Specifically, the client request of first area pushes flow data to main transmission node, is that client is distributed at this Flow data is pushed to sub- transmission node in region, client the sub- transmission node of distribution, and sub- transmission node pushes to again The first main transmission node in one region, receives the flow data that client is pushed through sub- transmission node in one's respective area.

In embodiments of the present invention, it is preferable that when the client request of second area obtains flow data, and now first There are the flow data of one's respective area client push, the specific reality of the flow data of the acquisition request transmission in region on sub- transmission node It is now：Sub- transmission node obtains the flow data of the client request transmission of second area from the first area.

Specifically, flow data is pushed to the client of first area the sub- transmission node in first area.Secondth area The client in domain initiates request, and the flow data is transmitted in request, and the client of second area is to the sub- transmission node in second area The acquisition request flow data.If there is no the flow data of request on the sub- transmission node in the second area, in the second area Main transmission node acquisition request flow data from sub- transmission node to corresponding second area.If the main transmission of second area There is no the flow data of request on node, the main transmission node of the second area should to the main transmission node acquisition request of first area Flow data.If the flow data that the first main transmission node of first area is not asked, the first main transmission node of first area To sub- transmission node acquisition request flow data in first area, there is one's respective area visitor on a sub- transmission node in first area The flow data that family end pushes, the flow data that the client request of second area is transmitted sub- transmission node transmission from first area To the first main transmission node of first area.

In embodiments of the present invention, it is preferable that when the client request of second area obtains flow data, and now first There are the flow data that one's respective area client is pushed through sub- transmission node, the acquisition request transmission on the first main transmission node in region Flow data be implemented as：The client request for extracting second area from the first main transmission node of the first area is passed Defeated flow data.

Specifically, flow data is pushed to the client of first area the sub- transmission node in first area, the sub- biography The flow data is pushed to defeated node the first main transmission node of first area again.The client of second area initiates request, please Ask and transmit the flow data, the client of second area is to the sub- transmission node acquisition request flow data in second area.If There is no the flow data of request on sub- transmission node in the second area, sub- transmission node in the second area is to corresponding the The main transmission node acquisition request flow data in two regions.If there is no the fluxion of request on the main transmission node of second area According to, the second area main transmission node acquisition request flow data from main transmission node to first area.The of first area There is the flow data that one's respective area client is pushed through sub- transmission node on one main transmission node, from the first main transmission section of first area Point extracts the flow data of the client request transmission of second area.

In embodiments of the present invention, it is preferable that when the client request of first area pushes flow data, the reception the The transmission path that the first main transmission node in one region sends obtains being implemented as request：Receive the visitor of the first area The flow data that family end sends pushes request；Accordingly, second master for choosing the first main transmission node to second area The transmission path of transmission node is implemented as：Selected respectively as second area in each region outside using the first area Take the transmission path of the described first main transmission node to the second main transmission node of second area.

Specifically, the client of first area sends flow data and pushes request to management node, and management node is received After push request, using first area outside each region as second area, the first main transmission node to each second is chosen respectively The transmission path of the second main transmission node in region.

In embodiments of the present invention, it is preferable that the main transmission node of two neighboring target area uses the communications cable It is attached, so that all main transmission node connections.

Specifically, main transmission node is subregion deployment, all sub- transmission node belonging to a main transmission node The region of covering is the target area of the main transmission node, and the target area for being for example deployed in the main transmission node in Pekinese is North China Area, the target area for being deployed in the main transmission node in Shanghai is East China.At zoning each target area and At least one other target area is adjacent, in order that can be connected between obtaining all main transmission nodes, and saves the communications cable Usage amount, it is a kind of preferably to be connected the main transmission node of all two adjacent target areas with the communications cable Connect.For example it is deployed in the main transmission node in Pekinese and is deployed in the main transmission node connection in Shanghai and Shenzhen, is deployed in Guangzhou Main transmission node and the main transmission node connection for being deployed in Shanghai and Shenzhen.

In embodiments of the present invention, it is preferable that when the first area is non-conterminous with the second area, first master The main transmission node of at least one intermediate conveyor that transmission node connects the flow data through the communications cable, transmits to The second main transmission node in two regions.

Specifically, at first area and non-conterminous second area, due to each target area at zoning It is adjacent with least one other target area, the main transmission node of all two adjacent target areas is carried out with the communications cable Connection, so the main transmission of at least one intermediate conveyor that the first main transmission node of first area can be connected through the communications cable Node is connected with the second of second area the main transmission node.In this manner it is possible to by flow data from the first main transmission of first area The main transmission node of at least one intermediate conveyor that node is connected through the communications cable, transmits to the second main transmission section of second area Point.

In embodiments of the present invention, it is preferable that the first main transmission node is by client through son transmission section in one's respective area The flow data that point is pushed, transmits to the second main transmission node of multiple second areas, by each second area through the communications cable The second main transmission node by the Stream Data Transmission to all sub- transmission node that is included.

Specifically, the client request of first area pushes flow data to main transmission node, is that client is distributed at this Flow data is pushed to sub- transmission node in region, client the sub- transmission node of distribution, and sub- transmission node pushes to again The first main transmission node in one region.Then flow data is transmitted to the second main transmission section of multiple second areas through the communications cable Point.

Further flow data is transmitted from the second main transmission node of each second area all to each second area Sub- transmission node.Under net cast application scenarios and remote camera application scenarios, flow data is so pushed in advance and arrives each The main transmission node and sub- transmission node in region be in order to the client in other regions need obtain flow data when, can directly from Pulled in sub- transmission node or main transmission node in one's respective area so that obtain flow data speed faster.

In embodiments of the present invention, it is preferable that the first main transmission node transmission node or local from one's respective area The flow data of the client request transmission of second area is obtained, is transmitted to the secondth area residing for the client through the communications cable The second main transmission node in domain, the Stream Data Transmission is extremely connected with client son by the described second main transmission node Transmission node.

Specifically, flow data is pushed to the client of first area the sub- transmission node in first area.Secondth area The client in domain initiates request, and the flow data is transmitted in request, by the flow data of the client request transmission of second area from first Sub- transmission node is transferred to the first main transmission node of first area in region.Then flow data is transmitted to described through the communications cable Second main transmission node of second area residing for client, then connected Stream Data Transmission to client by the second main transmission node The sub- transmission node for connecing.

In practical application, the client of second area is to the sub- transmission node acquisition request flow data in second area. If not having the flow data of request on the sub- transmission node in the second area, the sub- transmission node in the second area is to correspondence Second area main transmission node acquisition request flow data.If there is no the stream of request on the main transmission node of second area Data, main transmission node acquisition request flow data from the main transmission node of the second area to first area.If the firstth area The flow data that the first main transmission node in domain is not asked, the first main transmission node of first area is to son transmission in first area The node acquisition request flow data, there is the flow data of one's respective area client push on a sub- transmission node in first area,

In embodiments of the present invention, it is preferable that selected transmission path is being issued to the described first main transmission node Afterwards, the flow data is transmitted to the second of second area from the first main transmission node of first area through the communications cable Main transmission node.The the first main transmission node for being deployed in first area obtains the flow data of request transmission.In first area Between first main transmission node and the second main transmission node of second area, the first main transmission section is realized by deployable communication cable Point is connected with the second main transmission node so that the first main transmission node and the second main transmission node are no longer needed by traditional Backbone Transport flow data.

Specifically, lead to when the first main transmission node and the second main transmission node can need not move through other transmission nodes When crossing the communications cable and directly setting up connection, the first main transmission node is by the communications cable directly by Stream Data Transmission to the second main biography Defeated node；Connect when the first main transmission node and the second main transmission node need to be set up by the communications cable by other transmission nodes When connecing, the first main transmission node can be by the communications cable by the main transmission section of Stream Data Transmission at least one intermediate conveyor Point, then by the communications cable from the main transmission node of intermediate conveyor by Stream Data Transmission to the second main transmission node.

In embodiments of the present invention, it is preferable that when needing for flow data to be pushed to all of sub- transmission node, will be described Flow data transmits at least one sub- transmission node to the second area from the described second main transmission node.

In embodiments of the present invention, the second main transmission node is after flow data is received, directly or according in second area The request of client is by least one sub- transmission node in Stream Data Transmission to second area.

Specifically, when needing for flow data to be pushed to all of sub- transmission node, the second main transmission of second area Sub- transmission node in node and all second areas sets up connection, and will ask the flow data active transmission that pushes to all sons Transmission node；When the client request of at least one second area obtains flow data, the client of acquisition request flow data connects The sub- transmission node for connecing is set up with the second of second area the main transmission node and is connected, and the flow data of acquisition request is led from second Transmission node is transmitted to the sub- transmission node of at least one client connection.

In embodiments of the present invention, it is preferable that when the main transmission node for needing to be pushed to flow data multiple other regions And its further when being pushed to corresponding all of sub- transmission node, by the flow data from the first main transmission section of first area Point transmits being implemented as to the second main transmission node of second area through the communications cable：By the flow data from first The first main transmission node in region is transmitted to the second main transmission node of multiple second areas through the communications cable；Accordingly, It is described that the flow data is transmitted at least one sub- transmission node to the second area from the described second main transmission node Be implemented as：The flow data is transmitted into the institute to the second area from the second main transmission node of each second area There is sub- transmission node.

Specifically, flow data needs the first main transmission node from first area to be pushed to the main transmission section in other regions Point, flow data can be transmitted to the multiple for needing push flow data from the first main transmission node of first area through the communications cable Second main transmission node of second area.

In embodiments of the present invention, it is preferable that when need by flow data be pushed to client request flow data other The main transmission node in region and its when being further pushed to corresponding sub- transmission node, it is described by the flow data from first area The first main transmission node transmit being implemented as to the second main transmission node of second area through the communications cable：By institute Flow data is stated to be transmitted to second area residing for the client through the communications cable from the first main transmission node of first area The second main transmission node；It is corresponding, it is described that the flow data is transmitted to secondth area from the described second main transmission node At least one sub- transmission node in domain is implemented as：By the flow data from the described second main transmission node transmit to The sub- transmission node of the client connection.

Specifically, the client of second area initiates request, and the flow data, the first main biography of first area are transmitted in request After having flow data on defeated node, flow data is transmitted to initiation from the first main transmission node of first area through the communications cable and is asked Client residing for second area the second main transmission node.Further, by flow data from the second main transmission node transmit to The sub- transmission node being connected with the client for initiating request.

In embodiments of the present invention, it is preferable that each main transmission node is transmitted with the son of each Virtual network operator in affiliated area Node is respectively adopted communications cable connection；It is described that the flow data is transmitted to secondth area from the described second main transmission node One kind of at least one sub- transmission node in domain is achieved in that：By the flow data from the described second main transmission node, warp Each communications cable is transmitted separately to the sub- transmission node of each Virtual network operator in the second area.

Specifically, in same region, the network operation of network is provided for main transmission node and each sub- transmission node Business is possibly different from, and to make the cross operator transmission delay of flow data between winner's transmission node and sub- transmission node lower, resists Interference performance is stronger, and each main transmission node in each region is adopted respectively with the sub- transmission node of each Virtual network operator in affiliated area Connected with the communications cable.Flow data can be transmitted separately to each network in second area from the second main transmission node through the communications cable The sub- transmission node of operator.In the same area, main transmission node and sub- transmission node due to when cross operator is transmitted, Transmission link is long, and intermediate node is more, causes transmission delay high, and antijamming capability is weak.Using the communications cable by sub- transmission node and Main transmission node realizes connection, it is possible to reduce transmission link length and intermediate node quantity, so as to reduce transmission delay, improves anti- Interference performance.

Embodiment two

Reference picture 2, show according to embodiments of the present invention two flow data cross-domain transmission method the step of flow illustrate Figure, specifically may include steps of：

Step 201, receives the transmission path acquisition request that the first main transmission node of first area sends.

Step 202, counts the first main transmission node through at least one main transmission node in centre to the described second main biography Many transmission paths between defeated node.

In embodiments of the present invention, transmission path refers to be passed through to another main transmission node from a main transmission node Intermediate conveyor transmission node and the path that is constituted of the communications cable.First main transmission node of first area can be through communication The main transmission node of at least one intermediate conveyor of cable connection is connected with the second of second area the main transmission node, the first main biography Many transmission paths are might have between defeated node and the second main transmission node, all of transmission path is counted.

Step 203, calculates the transmission performance of each transmission paths, and chooses the target biography that transmission performance meets sets requirement Defeated path.

In embodiments of the present invention, transmission performance refers to the transmittability of the transmission path for transmitting flow data, specifically can be with The transmission performance of transmission path is determined according to the distance between node, transmission speed, data loss rate, clogged conditions etc..By meter Calculation obtains the transmission performance of each transmission path, and the object transmission path that selection transmission performance meets sets requirement can choose to pass The best transmission path of defeated performance reaches all biographies of the requirement of setting as object transmission path, or selection transmission performance Defeated path is used as object transmission path.

In embodiments of the present invention, it is preferable that a kind of implementation of the transmission performance for calculating each transmission paths It is：Calculate the transmission performance of the subpath of two neighboring main transmission node composition in the transmission path；The biography of comprehensive subpath Defeated performance, obtains the transmission performance of the transmission path.

Specifically, the first main transmission node is in the transmission path between the second main transmission node, two adjacent main biographies Defeated node constitutes a subpath, and by being calculated the transmission performance of each transmission path, the transmission performance of comprehensive subpath can To be that the value of the transmission performance of each subpath is added into obtain and value as the value of the transmission performance of transmission path, obtain comprehensive The transmission performance of the getable transmission path of transporting of each subpath.

In embodiments of the present invention, it is preferable that described to calculate two neighboring main transmission node composition in the transmission path One kind of transmission performance of subpath be achieved in that：According to the nodal distance and/or node of two neighboring main transmission node Configured transmission calculates the transmission performance of the subpath.

Specifically, nodal distance refers to the physical distance between two main transmission nodes, when main transmission node is disposed Nodal distance can be determined, usual nodal distance will not change.Node-node transmission parameter refers to pass through between two main transmission nodes The parameter of the real-time Transmission performance of communications cable transmission data, such as transmission speed, data loss rate, clogged conditions parameter etc..

A kind of mode for calculating the transmission performance of subpath is obtained according to the nodal distance of two neighboring main transmission node The transmission performance of subpath, distance more short transmission performance is better；The another way for calculating the transmission performance of subpath is basis The node-node transmission parameter of two neighboring main transmission node obtains the transmission performance of subpath, the faster transmission performance of such as transmission speed Better, data loss rate more low transmission performance is better etc.；The another way for calculating the transmission performance of subpath is according to adjacent The nodal distance and node-node transmission parameter of two main transmission nodes obtain the transmission performance of subpath.

In embodiments of the present invention, it is preferable that choose the first main transmission node to the second of second area described Before the transmission path of main transmission node, the nodal distance and/or node-node transmission parameter of two neighboring main transmission node, institute are obtained Stating node-node transmission parameter includes transmission speed.

Specifically, node-node transmission parameter includes transmission speed, and management node receives the node that each main transmission node sends Distance and/or node-node transmission parameter.Wherein, nodal distance refers to the physical distance between two main transmission nodes, is led in deployment Nodal distance can be determined during transmission node, usual nodal distance will not change.Node-node transmission parameter refers to two main transmission sections The parameter of the real-time Transmission performance of data, such as transmission speed, data loss rate, obstruction shape are transmitted between point by the communications cable Condition parameter etc..

Step 204, the described first main transmission node is issued to by selected transmission path, for the described first main transmission Node is according to the transmission path flow data.

In embodiments of the present invention, selected transmission path is sent to the first main transmission node, for the first main biography Defeated node can be according to the transmission path flow data.

Step 205, receives the path failure information of the described first main transmission node feedback, and the path failure information is carried The current main transmission node that the transmission data have been reached.

In embodiments of the present invention, transmission path of the flow data from the first transmission node selected by, flow data exists First main transmission node reaches a main transmission node for intermediate conveyor, it is impossible to transmitted to next main transmission node, then to Management node transmitting path failure information, carries the main biography that the flow data of transmission has arrived in the path failure information of transmission Defeated node, that is, the main transmission node of flow data cannot be successfully transmitted to next main transmission node, management node is received should Path failure information.

Step 206, chooses the transmission path of the current second main transmission node of the main transmission node to second area.

In embodiments of the present invention, current main transmission node can be by one or more transmission path by Stream Data Transmission To the second main transmission node of second area.Management node is the flow data from current main transmission node to the second main transmission node Transmission choose transmission path after, current main transmission node receives the transmission path of management node selection.Flow data can be along new Current main transmission node to the transmission path of the second main transmission node chosen is transmitted.

Specifically, in embodiments of the present invention, the mode of management node selection transmission path can have various, for example, select Take transmission performance meet sets requirement transmission path, choose the transmission path of the transmission node minimum number passed through, can be with One or the transmission path not selected within selection a period of time are randomly selected in the transmission path of connection.According to actual need The mode for determining to choose is sought, this is not limited by the present invention.

Further, the transmission path for being sent by receiving the first of first area the main transmission node obtains request, counts institute The first main transmission node is stated through at least one main transmission node in centre to a plurality of transmission road between the described second main transmission node Footpath, calculates the transmission performance of each transmission paths, and chooses the object transmission path that transmission performance meets sets requirement, will be selected The transmission path for taking is issued to the described first main transmission node, so that the described first main transmission node is passed according to the transmission path Defeated flow data, realizing flow data can to the transmission path of the main transmission node in other regions from the main transmission node in region Flexibly to select, transmission performance is selected to meet actual demand or the best transmission path of transmission performance according to the actual requirements.

Further, by receiving the path failure information that the described first main transmission node feeds back, the path failure information The current main transmission node that the transmission data have been reached is carried, the current main transmission node to the second of second area is chosen The transmission path of main transmission node, realizing can in real time correct transmission path when transmission node breaks down, it is to avoid because in Between transmit main transmission node failure lead to not complete Stream Data Transmission problem.

Embodiment three

Reference picture 3, shows the structured flowchart of the cross-domain transmitting device of according to embodiments of the present invention three flow data, multiple The main transmission node disposed respectively in region is connected using the communications cable, can specifically include such as lower module：

Request receiving module 301 is obtained, the transmission path that the main transmission node of first for receiving first area sends is obtained Take request；

Transmission path chooses module 302, the second main transmission for choosing the described first main transmission node to second area The transmission path of node, selected transmission path meets sets requirement；

Transmission path issues module 303, for selected transmission path to be issued into the described first main transmission node, with For the described first main transmission node according to the transmission path flow data.

Preferably, the acquisition request receiving module 301, what the client specifically for receiving the second area sent Flow data pulls request；

Described device also includes：

Preferably, the first node searching modul includes：

Preferably, the acquisition request receiving module 301, what the client specifically for receiving the first area sent Flow data pushes request；

The transmission path chooses module 302, specifically for using each region outside the first area as the secondth area Domain, chooses the transmission path of the described first main transmission node to the second main transmission node of second area respectively.

Preferably, the transmission path is chosen module 302 and is included：

Preferably, the destination path calculating sub module includes：

Preferably, the transmission performance computation subunit, specifically for the nodal point separation according to two neighboring main transmission node From and/or node-node transmission parameter calculate the transmission performance of the subpath.

Preferably, described device also includes：

Preferably, the main transmission node of two neighboring target area is attached using the communications cable, so that all Main transmission node connection.

Preferably, when the first area is non-conterminous with the second area, the first main transmission node is by the stream The main transmission node of at least one intermediate conveyor that data are connected through the communications cable, transmits to the second main biography of second area Defeated node.

Preferably, the flow data that the described first main transmission node pushes client through sub- transmission node in one's respective area, warp The communications cable is transmitted to the second main transmission node of multiple second areas, will by the second main transmission node of each second area The all sub- transmission node that the Stream Data Transmission is extremely included.

Preferably, the described first main transmission node transmission node or local client for obtaining second area from one's respective area The flow data of end request transmission, transmits to the second main transmission section of second area residing for the client through the communications cable Point, the Stream Data Transmission is extremely connected with the client sub- transmission node by the described second main transmission node.

Algorithm and display be not inherently related to any certain computer, virtual system or miscellaneous equipment provided herein. Various general-purpose systems can also be used together with based on teaching in this.As described above, construct required by this kind of system Structure be obvious.Additionally, the present invention is not also directed to any certain programmed language.It is understood that, it is possible to use it is various Programming language realizes the content of invention described herein, and the description done to language-specific above is to disclose this hair Bright preferred forms.

In specification mentioned herein, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention Example can be put into practice in the case of without these details.In some instances, known method, structure is not been shown in detail And technology, so as not to obscure the understanding of this description.

Similarly, it will be appreciated that in order to simplify one or more that the disclosure and helping understands in each inventive aspect, exist Above to the description of exemplary embodiment of the invention in, each feature of the invention is grouped together into single implementation sometimes In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：I.e. required guarantor The application claims of shield features more more than the feature being expressly recited in each claim.More precisely, such as following Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore, Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, and wherein each claim is in itself All as separate embodiments of the invention.

Those skilled in the art are appreciated that can be carried out adaptively to the module in the equipment in embodiment Change and they are arranged in one or more equipment different from the embodiment.Can be the module or list in embodiment Unit or component be combined into a module or unit or component, and can be divided into addition multiple submodule or subelement or Sub-component.In addition at least some in such feature and/or process or unit exclude each other, can use any Combine to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so disclosed appoint Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including adjoint power Profit is required, summary and accompanying drawing) disclosed in each feature can the alternative features of or similar purpose identical, equivalent by offer carry out generation Replace.

Although additionally, it will be appreciated by those of skill in the art that some embodiments described herein include other embodiments In included some features rather than further feature, but the combination of the feature of different embodiments means in of the invention Within the scope of and form different embodiments.For example, in the following claims, embodiment required for protection is appointed One of meaning mode can be used in any combination.

All parts embodiment of the invention can be realized with hardware, or be run with one or more processor Software module realize, or with combinations thereof realize.It will be understood by those of skill in the art that can use in practice Microprocessor or digital signal processor (DSP) realize a kind of cross-domain transmission side of flow data according to embodiments of the present invention The some or all functions of some or all parts in method and device.The present invention is also implemented as performing here Some or all equipment or program of device of described method are (for example, computer program and computer program are produced Product).It is such to realize that program of the invention be stored on a computer-readable medium, or can have one or more The form of signal.Such signal can be downloaded from internet website and obtained, or be provided on carrier signal, or to appoint What other forms is provided.

It should be noted that above-described embodiment the present invention will be described rather than limiting the invention, and ability Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims, Any reference symbol being located between bracket should not be configured to limitations on claims.Word "comprising" is not excluded the presence of not Element listed in the claims or step.Word "a" or "an" before element is not excluded the presence of as multiple Element.The present invention can come real by means of the hardware for including some different elements and by means of properly programmed computer It is existing.If in the unit claim for listing equipment for drying, several in these devices can be by same hardware branch To embody.The use of word first, second, and third does not indicate that any order.These words can be explained and run after fame Claim.

The invention also discloses A1, a kind of cross-domain transmission method of flow data, the main transmission disposed respectively in multiple regions Node is connected using the communications cable, and methods described includes：

A2, the method according to A1, wherein, the transmission road of the first main transmission node transmission of the reception first area Footpath obtains request to be included：

A3, the method according to A2, wherein, the first main transmission node bag for searching the flow data for providing asked Include：

A4, the method according to A1, wherein, the transmission road of the first main transmission node transmission of the reception first area Footpath obtains request to be included：

Receive the flow data push request that the client of the first area sends；

A5, the method according to A1, wherein, second master for choosing the first main transmission node to second area The transmission path of transmission node includes：

A6, the method according to A5, wherein, the transmission performance for calculating each transmission paths includes：

A7, the method according to A6, wherein, it is described to calculate two neighboring main transmission node composition in the transmission path The transmission performance of subpath include：

A8, the method according to A7, wherein, choose the first main transmission node to the second of second area described Before the transmission path of main transmission node, methods described also includes：

A9, the method according to A1, wherein, methods described also includes：

A10, the method according to A1, wherein, the main transmission node of two neighboring target area uses the order wire Cable is attached, so that all main transmission node connections.

A11, the method according to A10, wherein, when the first area is non-conterminous with the second area, described The main transmission node of at least one intermediate conveyor that one main transmission node connects the flow data through the communications cable, transmission To the second main transmission node of second area.

A12, the method according to A1, wherein, the first main transmission node is by client through son transmission in one's respective area The flow data that node is pushed, transmits to the second main transmission node of multiple second areas, by each secondth area through the communications cable The all sub- transmission node that the second main transmission node in domain is extremely included the Stream Data Transmission.

A13, the method according to A1, wherein, the first main transmission node transmission node or sheet from one's respective area Ground obtains the flow data of the client request transmission of second area, is transmitted to residing for the client second through the communications cable , extremely be connected the Stream Data Transmission with the client by the described second main transmission node by the second main transmission node in region Sub- transmission node.

The invention also discloses B14, a kind of cross-domain transmitting device of flow data, the main transmission disposed respectively in multiple regions Node is connected using the communications cable, and described device includes：

B15, the device according to B14, wherein, the acquisition request receiving module, specifically for receiving described second The flow data that the client in region sends pulls request；

Described device also includes：

B16, the device according to B15, wherein, the first node searching modul includes：

B17, the device according to B14, wherein, the acquisition request receiving module, specifically for receiving described first The flow data that the client in region sends pushes request；

B18, the device according to B14, wherein, the transmission path chooses module to be included：

B19, the device according to B18, wherein, the destination path calculating sub module includes：

B20, the device according to B19, wherein, the transmission performance computation subunit, specifically for according to adjacent two The nodal distance and/or node-node transmission parameter of individual main transmission node calculate the transmission performance of the subpath.

B21, the device according to B20, wherein, described device also includes：

B22, the device according to B14, wherein, described device also includes：

B23, the device according to B14, wherein, the main transmission node of two neighboring target area uses the order wire Cable is attached, so that all main transmission node connections.

B24, the device according to B23, wherein, when the first area is non-conterminous with the second area, described The main transmission node of at least one intermediate conveyor that one main transmission node connects the flow data through the communications cable, transmission To the second main transmission node of second area.

B25, the device according to B14, wherein, the first main transmission node is by client through son transmission in one's respective area The flow data that node is pushed, transmits to the second main transmission node of multiple second areas, by each secondth area through the communications cable The all sub- transmission node that the second main transmission node in domain is extremely included the Stream Data Transmission.

B26, the device according to B14, wherein, the first main transmission node transmission node or sheet from one's respective area Ground obtains the flow data of the client request transmission of second area, is transmitted to residing for the client second through the communications cable , extremely be connected the Stream Data Transmission with the client by the described second main transmission node by the second main transmission node in region Sub- transmission node.

Claims

1. a kind of cross-domain transmission method of flow data, the main transmission node disposed respectively in multiple regions is connected using the communications cable Logical, methods described includes：

Choose the transmission path of the described first main transmission node to the second main transmission node of second area, selected transmission road Footpath meets sets requirement；

Selected transmission path is issued to the described first main transmission node, so that the described first main transmission node is according to described Transmission path flow data.

2. method according to claim 1, wherein, the transmission that the first main transmission node of the reception first area sends Path obtains request to be included：

It is described before the selection first main transmission node to the transmission path of the second main transmission node of second area Method also includes：

The first main transmission node of the flow data for providing asked is searched, and notifies the described first main transmission node to described second Main transmission node transmits flow data.

3. method according to claim 2, wherein, the first main transmission node for searching the flow data for providing asked Including：

4. method according to claim 1, wherein, the transmission that the first main transmission node of the reception first area sends Path obtains request to be included：

Receive the flow data push request that the client of the first area sends；

The described first main transmission node to the secondth area is chosen respectively as second area in each region outside using the first area The transmission path of the second main transmission node in domain.

5. method according to claim 1, wherein, it is described to choose the first main transmission node to the second of second area The transmission path of main transmission node includes：

The described first main transmission node is counted through at least one main transmission node in centre between the described second main transmission node Many transmission paths；

6. method according to claim 5, wherein, the transmission performance for calculating each transmission paths includes：

7. method according to claim 6, wherein, it is described to calculate two neighboring main transmission node structure in the transmission path Into the transmission performance of subpath include：

Nodal distance and/or node-node transmission parameter according to two neighboring main transmission node calculate the transporting of the subpath Energy.

8. method according to claim 7, wherein, choose the first main transmission node to the of second area described Before the transmission path of two main transmission nodes, methods described also includes：

The nodal distance and/or node-node transmission parameter of two neighboring main transmission node are obtained, the node-node transmission parameter includes passing Defeated speed.

9. method according to claim 1, wherein, methods described also includes：

The path failure information of the described first main transmission node feedback is received, the path failure information carries the transmission data The current main transmission node for having reached；

10. a kind of cross-domain transmitting device of flow data, the main transmission node disposed respectively in multiple regions is connected using the communications cable Logical, described device includes：

Request receiving module is obtained, the transmission path that the main transmission node of first for receiving first area sends obtains request；

Transmission path chooses module, the biography for choosing the described first main transmission node to the second main transmission node of second area Defeated path, selected transmission path meets sets requirement；

Transmission path issues module, for selected transmission path to be issued into the described first main transmission node, for described First main transmission node is according to the transmission path flow data.