CN110932956B - Method for networking by combining multi-path concurrent system and VPDN - Google Patents
Method for networking by combining multi-path concurrent system and VPDN Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
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- H—ELECTRICITY
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- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
Abstract
The invention discloses a method for networking by combining a multi-path concurrent system and a VPDN (virtual private network address), which comprises the following steps: when a current node is triggered by service data, trying to activate a corresponding static route from the current node to a target node in a VPDN network; acquiring an activation result of the static route, and if the route from the current node to the target node is available, simultaneously detecting the network condition of the VPDN aiming at the multi-path concurrent system; selecting a pre-configured crushing algorithm according to a network condition detection result; according to the selected crushing algorithm, data transmission is carried out based on the route from the current node to the target node; the purpose of networking communication among devices in a multi-path concurrent system by simultaneously using a plurality of VPND links is achieved, and the efficiency of data transmission is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method for networking by combining a multi-channel concurrent system and a VPDN.
Background
VPDN (Virtual Private Dial-up network), which is one of VPN services, is a Virtual Private Dial-up network service based on Dial-up subscribers; namely, the network access by dialing is a secure virtual private network established by using the bearer function of the IP network in combination with the corresponding authentication and authorization mechanism, and is a technology rapidly developed along with the development of Internet in recent years.
Because the communication link of the VPDN is single, the transmission efficiency is lower when the VPDN is singly relied on for data transmission; in addition, when a plurality of multilink device nodes communicate with each other in the VPDN, a server is generally required to transfer communication data, so that data processing pressure of the server in the system is additionally increased, and the data transmission efficiency is low.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for networking by combining a multi-path concurrent system and a VPDN, which aims to use a plurality of VPND links to perform networking communication between devices in the multi-path concurrent system, thereby improving data transmission efficiency.
The invention provides a method for networking by combining a multi-path concurrent system and a VPDN (virtual private network address), which comprises the following steps:
when a current node is triggered by service data, trying to activate a corresponding static route from the current node to a target node in a VPDN network;
acquiring an activation result of the static route, and if the route from the current node to the target node is available, simultaneously detecting the network condition of the VPDN aiming at the multi-path concurrent system;
selecting a pre-configured crushing algorithm according to a network condition detection result;
and according to the selected fragmentation algorithm, carrying out data transmission based on the route from the current node to the target node.
Further, when the current node has a service data trigger, before attempting to activate a corresponding static route from the current node to a target node in the VPDN network, the method further includes:
after other communication nodes in the VPDN are started, synchronizing address information with a storage node to acquire node information in the VPDN network;
if the address information synchronization between the VPDN and the storage node is unsuccessful, other communication nodes use the address information corresponding to each communication node in the VPDN stored last time to carry out data communication;
and the storage nodes pre-store node address information corresponding to all network nodes in the VPDN.
Further, the method for networking by combining the multi-path concurrent system and the VPDN further comprises:
identifying whether a communication node is updated within the VPDN network;
and if the communication node is identified to be updated in the VPDN network, updating the node address information of each network node in the VPDN network, which is stored in the storage node.
Further, the updating node address information of each network node in the VPDN network, which is stored in the storage node, further includes:
and after the node address information stored in the storage node is updated, controlling other network nodes in the VPDN to synchronize the address information with the updated storage node.
Further, the performing data transmission based on the route from the current node to the target node includes:
based on the route from the current node to the target node, setting the route in K queues for transmission, wherein the size of the data flow is siThe cumulative density of the size distribution of the data streams in the i queue is
Wherein 1 is<＝i<＝K，PjIndicating the size of the data stream at thetaj-1And thetajThe internal percentage satisfies the following conditions:
let the average delay of the jth queue be DjThus, the average completion time D of the i-queue data flowiComprises the following steps:
wherein, TiTo average latency, then according to the theory of relevance to queuing theory, TiSatisfies the following conditions:
the total average completion time d (K) of the K queues is:
when D (k) is minimum, the whole data communication takes the shortest time, s at this timeiSetting the optimal data flow;
and carrying out data transmission according to the optimal data flow setting.
Further, the acquiring the activation result of the static route, if the route from the current node to the target node is available, performing network condition detection of the VPDN for the multi-path concurrent system at the same time, and then further includes:
and when the idle time of the service data channel between the current node and the target node exceeds the preset idle time, deactivating the route between the current node and the target node, and stopping detecting the network condition of the VPDN.
Further, the network condition detection for the multi-path concurrent system by simultaneously performing VPDN comprises:
and detecting the condition of the VPDN network, calculating the network delay and the packet loss rate of the VPDN network, and acquiring the network quality of the VPDN network.
Further, the selecting a pre-configured fragmentation algorithm according to the network condition detection result includes:
according to a network state detection result, identifying whether the network delay is not greater than a preset delay threshold value or not, and whether the packet loss rate is lower than a preset packet loss threshold value or not;
and selecting a crushing algorithm matched with the recognition result according to the recognition result.
Further, the selecting, according to the recognition result, a crushing algorithm matched with the recognition result includes:
if the network delay is not greater than a preset delay threshold and the packet loss rate is lower than a preset packet loss threshold, selecting a crushing algorithm matched with the identification result as a cutting crushing algorithm;
and if the network delay is greater than or equal to the preset delay threshold and/or the packet loss rate is greater than or equal to the preset packet loss threshold, selecting a fragmentation algorithm matched with the identification result as a retransmission fragmentation algorithm.
Further, the cutting and crushing algorithm comprises:
the method comprises the steps that after a current node cuts transmission data according to a preset cutting rule, the cut data are sent to a target node based on a service data channel between the current node and the target node, and when the target node receives the cut data, the cut data are recombined according to the preset cutting rule to obtain the transmission data of the current node;
the retransmission crushing algorithm comprises the following steps:
the current node does not perform data cutting, and directly and repeatedly sends the transmission data with the same content to the target node for preset times based on a service data channel between the current node and the target node, wherein the target node only receives the transmission data which firstly reaches the target node.
The method for networking by combining the multi-path concurrent system and the VPDN can achieve the following beneficial effects:
when a current node is triggered by service data, trying to activate a corresponding static route from the current node to a target node in a VPDN network; acquiring an activation result of the static route, and if the route from the current node to the target node is available, simultaneously detecting the network condition of the VPDN aiming at the multi-path concurrent system; selecting a pre-configured crushing algorithm according to a network condition detection result; according to the selected crushing algorithm, data transmission is carried out based on the route from the current node to the target node; the purpose of networking communication among devices in a multi-path concurrent system by simultaneously using a plurality of VPND links is achieved, and the efficiency of data transmission is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described below by means of the accompanying drawings and examples.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic workflow diagram of an embodiment of a method for networking in combination of a multi-path concurrent system and a VPDN according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The invention provides a method for networking by combining a multi-channel concurrent system and a VPDN (virtual private network digital network), and simultaneously, a plurality of VPND (virtual private network digital network) links are used for networking communication among all devices in the multi-channel concurrent system, so that the coordination work is realized, and the data transmission efficiency is improved; furthermore, address information synchronization management is carried out among all communication nodes in the multi-channel concurrent system, the aim of decentralization is achieved, and the stability of data transmission in the multi-channel concurrent system is improved.
As shown in fig. 1, fig. 1 is a schematic workflow diagram of an embodiment of a method for networking by combining a multi-path concurrent system and a VPDN according to the present invention; the method for networking by combining the multi-path concurrent system and the VPDN can be implemented as the following steps S10-S40:
step S10, when the current node has service data trigger, trying to activate the corresponding static route from the current node to the target node in the VPDN network;
in the embodiment of the invention, the multi-path concurrent system consists of a plurality of multi-link information transmission devices, and the multi-path concurrent system simultaneously uses a plurality of VPDN links to carry out networking communication among the transmission devices and coordinate the work.
When a communication node (i.e. the described "current node") in the multi-path concurrent system needs to communicate with another node (i.e. the described "target node"), for example, when there is a traffic data trigger on the current node, the current node first attempts to activate a corresponding static route from the current node to the target node in the VPDN network. In the embodiment of the present invention, the service data may be understood as: the data message that the user needs to transmit.
Step S20, obtaining the activation result of the static route, if the route from the current node to the target node is available, then detecting the network condition of VPDN aiming at the multi-path concurrent system;
step S30, selecting a pre-configured crushing algorithm according to the network condition detection result;
and step S40, carrying out data transmission based on the route from the current node to the target node according to the selected fragmentation algorithm.
The current node acquires an activation result of a corresponding static route between the target nodes, and if the route from the current node to the target nodes is available, the current node simultaneously detects the network condition of the VPDN and acquires a network condition detection result aiming at a multi-path concurrent system, and the communication quality of the current VPDN network is acquired according to the network condition detection result; therefore, according to the communication quality of the current VPDN network, a fragmentation algorithm required by data transmission from the current node to the target node is selected.
In the embodiment of the invention, the multi-channel concurrent system is configured in advance according to different network communication qualities corresponding to the VPDN, and the multi-channel concurrent system is configured with a plurality of fragmentation algorithms in advance and stores the fragmentation algorithms for use when data transmission is carried out between the current node and the target node.
And performing data transmission operation between the current node and a target node based on a service data transmission channel between the current node and the target node according to a selected fragmentation algorithm matched with the current network communication quality of the VPDN.
The invention relates to a method for networking by combining a multi-path concurrent system and a VPDN (virtual private network), which is characterized in that when a current node is triggered by service data, a corresponding static route from the current node to a target node in the VPDN network is tried to be activated; acquiring an activation result of the static route, and if the route from the current node to the target node is available, simultaneously detecting the network condition of the VPDN aiming at the multi-path concurrent system; selecting a pre-configured crushing algorithm according to a network condition detection result; according to the selected crushing algorithm, data transmission is carried out based on the route from the current node to the target node; the purpose of networking communication among devices in a multi-path concurrent system by simultaneously using a plurality of VPND links is achieved, and the efficiency of data transmission is improved.
Further, in one embodiment, synchronous management of address information is performed between the communication nodes in the multi-way concurrent system for decentralized purposes.
Based on the description of the embodiment in fig. 1, in the embodiment of the present invention, before attempting to activate a corresponding static route from a current node to a target node in a VPDN network when there is a service data trigger, the method further includes:
the multi-path concurrent system comprises a plurality of multi-link information transmission devices, wherein one transmission device is pre-stored with node address information respectively corresponding to all network nodes in the VPDN, and the transmission devices storing all the node address information are named as: and storing the nodes. After other communication nodes in the VPDN are started, address information synchronization is firstly carried out with the storage nodes so as to obtain the latest node information in the VPDN network; in this way, all communication nodes in the VPDN network have all node information in the entire VPDN communication network.
Furthermore, after other communication nodes in the VPDN are started, address information synchronization with the storage nodes comprises the condition that the address information cannot be successfully synchronized; namely:
after other communication nodes in the VPDN are started up, if address information synchronization between the other communication nodes and the storage node is unsuccessful, the other communication nodes default to use the address information corresponding to each communication node in the VPDN stored last time for data communication.
Further, aiming at the condition of node address information corresponding to all communication nodes in the VPDN network, which is stored in the storage node, the multi-path concurrent system identifies whether the communication nodes are updated in the VPDN network in real time or according to a preset period; and if the communication node is identified to be updated in the VPDN network, updating the node address information of each network node in the VPDN network, which is stored in the storage node. After the updating is finished, when other communication nodes in the VPDN network are started, firstly, the synchronization of the node address information with the storage node is tried, and the updated node address information of each network node in the VPDN network, which is stored in the storage node, is obtained.
Further, in a preferred embodiment, in order to improve the network communication quality and the data transmission safety, the multi-path concurrent system keeps the node address information stored in each VPDN communication node in the multi-path concurrent system in a latest state.
After the multi-path concurrent system updates the node address information of each network node in the VPDN network stored in the storage node according to the requirement or according to a node update triggering instruction, the multi-path concurrent system directly and automatically updates the node address information stored in the storage node, and after the node address information stored in the storage node is updated, the multi-path concurrent system controls other network nodes in the VPDN to automatically synchronize the address information with the updated storage node in a power-on state.
Further, in an embodiment, in order to ensure the high efficiency of data communication, so that the data stream of each communication is completed in the shortest time, thereby improving the communication efficiency, when data communication is performed, the size of the data stream transmitted each time needs to be limited.
Arranged in K queues for transmission, the size of the data stream being siThe cumulative density of the size distribution of the data streams in the i queue is
Wherein 1 is<＝i<＝K，PjIndicating the size of the data stream at thetaj-1And thetajThe internal percentage satisfies the following conditions:
let the average delay of the jth queue be DjThus, the average completion of i-queue data flowsIn a room DiComprises the following steps:
wherein, TiTo average latency, then according to the theory of relevance to queuing theory, TiSatisfies the following conditions:
the total average completion time d (K) of the K queues is:
when D (k) is minimum, the whole data communication takes the shortest time, s at this timeiSetting the optimal data flow;
and according to an optimal data flow setting mode, carrying out data transmission based on the route from the current node to the target node.
Further, in an embodiment, in order to save data traffic and bandwidth of a VPND network in the multi-path concurrent system and reduce device load and power consumption at the same time, the obtaining of the activation result of the static route, if a route from the current node to a target node is available, performing network condition detection on the VPDN for the multi-path concurrent system at the same time, and then further including:
and when the idle time of the service data channel between the current node and the target node exceeds the preset idle time, deactivating the route between the current node and the target node, and stopping detecting the network condition of the VPDN.
Further, in an embodiment, in order to improve the matching accuracy of the fragmentation algorithm and further improve the data transmission efficiency, the network condition detection for the multiple concurrent systems simultaneously performing VPDN may be implemented according to the following technical means:
and detecting the condition of the VPDN network, calculating the network delay and the packet loss rate of the VPDN network, and acquiring the network quality of the VPDN network.
The pre-configured fragmentation algorithm is selected according to the network condition detection result, and can be implemented according to the following technical means:
according to a network state detection result, identifying whether the network delay is not greater than a preset delay threshold value or not, and whether the packet loss rate is lower than a preset packet loss threshold value or not; and selecting a crushing algorithm matched with the identification result according to the identification results of the network delay and the preset delay threshold value as well as the network packet loss rate and the preset packet loss threshold value.
For example, when the network delay is not greater than a preset delay threshold, that is, less than or equal to the preset delay threshold, and the packet loss rate corresponding to the current network quality is lower than a preset packet loss threshold, selecting a fragmentation algorithm matched with the identification result as a cutting fragmentation algorithm;
when the network delay is greater than or equal to the preset delay threshold, or the packet loss rate is greater than or equal to the preset packet loss threshold, or both: and if the network delay is greater than or equal to the preset delay threshold and the packet loss rate is greater than or equal to the preset packet loss threshold, selecting the fragmentation algorithm matched with the identification result as a retransmission fragmentation algorithm.
In a specific application scenario, the cut-and-break algorithm may be understood as:
the method comprises the steps that after a current node cuts transmission data according to a preset cutting rule, the cut data are sent to a target node based on a service data channel between the current node and the target node, and when the target node receives the cut data, the cut data are recombined according to the preset cutting rule to obtain the transmission data of the current node;
the retransmission fragmentation algorithm can be understood as:
the current node does not perform data cutting, and directly and repeatedly sends the transmission data with the same content to the target node for preset times based on a service data channel between the current node and the target node, wherein the target node only receives the transmission data which firstly reaches the target node.
Certainly, the above-mentioned cutting and crushing algorithm and retransmission crushing algorithm are only two specific algorithms among the crushing algorithms pre-configured for the multiple concurrent systems, and the multiple concurrent systems may configure multiple different crushing algorithms according to specific application scenarios and specific networking forms with the VPDN network to match with different network communication qualities corresponding to the VPDN network; the embodiment of the invention does not specifically limit and exhaust the matching rules of the specific network communication quality corresponding to each fragmentation algorithm and the VPDN network one by one; aiming at multiple crushing algorithms pre-configured by the multi-path concurrent system, as long as the configured crushing algorithms can meet the requirement of normal data transmission in a service data channel, the embodiment of the invention does not specifically limit and exhaust the specific contents mapped by the multiple crushing algorithms.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A method for networking work by combining a multi-path concurrent system and a VPDN is characterized by comprising the following steps:
when a current node is triggered by service data, trying to activate a corresponding static route from the current node to a target node in a VPDN network;
acquiring an activation result of the static route, and if the route from the current node to the target node is available, simultaneously detecting the network condition of the VPDN aiming at the multi-path concurrent system;
selecting a pre-configured crushing algorithm according to a network condition detection result;
according to the selected crushing algorithm, data transmission is carried out based on the route from the current node to the target node;
wherein the data transmission based on the route from the current node to the target node comprises:
based on the route from the current node to the target node, the data flow is set in K queues for transmissionIs small as siThe cumulative density of the size distribution of the data streams in the i queue is
Wherein 1 is<＝i<＝K，PjIndicating the size of the data stream at thetaj-1And thetajThe internal percentage satisfies the following conditions:
let the average delay of the jth queue be DjThus, the average completion time D of the i-queue data flowiComprises the following steps:
wherein, TiTo average latency, then according to the theory of relevance to queuing theory, TiSatisfies the following conditions:
the total average completion time d (K) of the K queues is:
when D (k) is minimum, the whole data communication takes the shortest time, s at this timeiSetting the optimal data flow;
and carrying out data transmission according to the optimal data flow setting.
2. The method of claim 1, wherein when the current node is triggered by service data, before attempting to activate a corresponding static route from the current node to a destination node in a VPDN network, the method further comprises:
after other communication nodes in the VPDN are started, synchronizing address information with a storage node to acquire node information in the VPDN network;
if the address information synchronization between the VPDN and the storage node is unsuccessful, other communication nodes use the address information corresponding to each communication node in the VPDN stored last time to carry out data communication;
and the storage nodes pre-store node address information corresponding to all network nodes in the VPDN.
3. The method for networking in combination with a VPDN of claim 2, further comprising:
identifying whether a communication node is updated within the VPDN network;
and if the communication node is identified to be updated in the VPDN network, updating the node address information of each network node in the VPDN network, which is stored in the storage node.
4. The method of claim 3, wherein the updating node address information of each network node in the VPDN network stored in the storage node further comprises:
and after the node address information stored in the storage node is updated, controlling other network nodes in the VPDN to synchronize the address information with the updated storage node.
5. The method according to claim 1, wherein the obtaining of the activation result of the static route simultaneously performs network condition detection of the VPDN for the multi-path concurrent system if the route from the current node to the target node is available, and thereafter further comprises:
and when the idle time of the service data channel between the current node and the target node exceeds the preset idle time, deactivating the route between the current node and the target node, and stopping detecting the network condition of the VPDN.
6. The method for networking in combination with a VPDN in a multi-path concurrent system according to any one of claims 1 to 5, wherein the network condition detection for the multi-path concurrent system simultaneously includes:
and detecting the condition of the VPDN network, calculating the network delay and the packet loss rate of the VPDN network, and acquiring the network quality of the VPDN network.
7. The method of claim 6, wherein the selecting a pre-configured fragmentation algorithm according to the network condition detection result comprises:
according to a network state detection result, identifying whether the network delay is not greater than a preset delay threshold value or not, and whether the packet loss rate is lower than a preset packet loss threshold value or not;
and selecting a crushing algorithm matched with the recognition result according to the recognition result.
8. The method of claim 7, wherein the selecting a fragmentation algorithm matching the recognition result according to the recognition result comprises:
if the network delay is not greater than a preset delay threshold and the packet loss rate is lower than a preset packet loss threshold, selecting a crushing algorithm matched with the identification result as a cutting crushing algorithm;
and if the network delay is greater than or equal to the preset delay threshold and/or the packet loss rate is greater than or equal to the preset packet loss threshold, selecting a fragmentation algorithm matched with the identification result as a retransmission fragmentation algorithm.
9. The method of claim 8, wherein the fragmentation algorithm comprises:
the method comprises the steps that after a current node cuts transmission data according to a preset cutting rule, the cut data are sent to a target node based on a service data channel between the current node and the target node, and when the target node receives the cut data, the cut data are recombined according to the preset cutting rule to obtain the transmission data of the current node;
the retransmission crushing algorithm comprises the following steps:
the current node does not perform data cutting, and directly and repeatedly sends the transmission data with the same content to the target node for preset times based on a service data channel between the current node and the target node, wherein the target node only receives the transmission data which firstly reaches the target node.
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| CN107682258A (en) * | 2017-09-27 | 2018-02-09 | 北京邮电大学 | A kind of multi-path network transmission method and device based on virtualization |
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