CN104468604A - Data access method and device based on peer-to-peer network communication mode in local area network - Google Patents

Abstract

The present invention provides a data access method and device based on a peer-to-peer network communication mode in a local area network. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. The method includes : The first computing device initiates a data resource access request to one or more other computing devices in the same subnet, wherein the access request carries the identifier of the data resource; the first computing device receives the other computing device A response message of at least one of them; according to the response message, the first computing device selects at least one computing device from the other computing devices as a data source and accesses the data resource. The technical scheme provided by the invention can realize data access in the same subnet, solve the problem of network congestion or even network paralysis caused by cross-network or cross-region communication in the peer-to-peer network communication mode, and can ensure normal communication between other computing devices.

Description

Data access method and device based on peer-to-peer network communication mode in local area network

technical field

The invention relates to the technical field of computer networks, in particular to a data access method and device based on a peer-to-peer network communication mode in a local area network.

Background technique

A peer-to-peer network (Peer to Peer, referred to as P2P) is a network in which multiple nodes are connected to each other with equal identities to achieve resource sharing. Compared with the traditional client/server (Client/Service, referred to as C/S ) mode, the peer-to-peer network enables each peer node to participate in network services by giving full play to the capabilities of each peer node in the network. It can not only act as a requester for network services, but also respond to requests from other peer nodes and provide resources. and services, which reduces the dependence of each peer node on the central server.

However, P2P puts too much emphasis on "peer-to-peer", and the data interaction between each node is completely out of order. A user in Beijing may exchange file fragments with a user in Guangzhou, or exchange with a user in the United States. Clearly, the disorderly exchange leads to unnecessary cross-regional and even cross-border "traffic travel", which consumes precious domestic and international bandwidth resources and is costly. Moreover, a large amount of link overhead and traffic consumption will lead to network congestion and even network paralysis. Thereby urgently need to provide a kind of scheme that solves above-mentioned technical problem.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a data access method and device based on a peer-to-peer network communication mode in a local area network that overcomes the above problems or at least partially solves the above problems.

According to one aspect of the present invention, a data access method based on a peer-to-peer network communication mode in a local area network is provided. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. The method includes: the first computing device initiates a data resource access request to one or more other computing devices in the same subnet, wherein the access request carries the identifier of the data resource; the first computing device receives the A response message from at least one of the other computing devices; according to the response message, the first computing device selects at least one computing device from the other computing devices as a data source and accesses the data resource.

Optionally, the initiating a data resource access request includes: sending the data resource access request in a broadcast or multicast manner within the subnet where the first computing device is located.

Optionally, the initiating a data resource access request includes: sending the data resource access request in a UDP broadcast manner in the subnet where the first computing device is located.

Optionally, the first computing device initiates a data resource access request to one or more other computing devices in the same subnet, and further includes: closing the penetration server and/or in the subnet where the first computing device is located Or a service of an index server, wherein the penetration server is used to receive and forward the access request, and the index server is used to index data sources in the local area network.

Optionally, according to the response message, the first computing device selects at least one computing device from the other computing devices as a data source and accesses the data resource, including: determining at least one computing device to be accessed according to the response message A device; accessing the data resource from a selected computing device in the at least one computing device to be accessed as a data source.

Optionally, the method further includes: monitoring the access traffic of the computing device serving as the data source in real time; when the access traffic is greater than a preset traffic threshold, suspending or terminating the access of the first computing device to the data resource.

According to another aspect of the present invention, a data access device based on a peer-to-peer network communication mode in a local area network is also provided, which is applied to a first computing device. The local area network is composed of two or more subnets, and the two or more subnets The networks are connected via network node equipment, and the device includes:

The request sending module is adapted to initiate a data resource access request to one or more other computing devices in the same subnet as the first computing device, wherein the access request carries the identifier of the data resource;

a message receiving module adapted to receive a response message from at least one of the other computing devices;

The selection module is adapted to select at least one computing device from the other computing devices as a data source and access the data resource according to the response message.

Optionally, the request sending module is further adapted to: send the data resource access request by broadcast or multicast in the subnet where the first computing device is located.

Optionally, the request sending module is further adapted to: send the data resource access request by means of UDP broadcast in the subnet where the first computing device is located.

Optionally, the device also includes:

A shutdown module, adapted for the request sending module to initiate a data resource access request to one or more other computing devices in the same subnet of the first computing device, and to close the penetration server in the subnet where the first computing device is located And/or services of an index server, wherein the penetration server is used to receive and forward the access request, and the index server is used to index data sources in the local area network.

Optionally, the selection module is further adapted to: determine at least one computing device to be accessed according to the response message; and access the data resource from the selected computing device in the at least one computing device to be accessed as a data source.

Optionally, the device also includes:

The monitoring module is adapted to monitor the access traffic of the computing device as the data source in real time; when the access traffic is greater than a preset traffic threshold, suspend or terminate the first computing device from accessing the data resource.

The invention provides a data access method based on a peer-to-peer network communication mode in a local area network. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. More than one other computing device in the subnet initiates a data resource access request, so the data interaction can be carried out in the same subnet without crossing two or more subnets, thus solving the problem of cross-network communication in the peer-to-peer network communication mode. Or the problem of network congestion or even network paralysis caused by cross-region, improve the efficiency of data resource access, and ensure the normal communication between other computing devices.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

Fig. 1 shows a flow chart of a data access method based on a peer-to-peer network communication mode in a local area network according to an embodiment of the present invention;

Fig. 2 shows a schematic diagram of a local area network according to an embodiment of the present invention;

Fig. 3 shows a schematic diagram of a local area network according to another embodiment of the present invention;

Figure 4 shows a schematic diagram of a local area network within an enterprise;

5 shows a flow chart of a data access method based on a peer-to-peer network communication mode in an enterprise intranet according to an embodiment of the present invention;

FIG. 6 shows a schematic structural diagram of a data access device based on a peer-to-peer network communication mode in a local area network according to an embodiment of the present invention; and

Fig. 7 shows a schematic structural diagram of a data access device based on a peer-to-peer network communication mode in a local area network according to another embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

In order to solve the above technical problems, an embodiment of the present invention provides a data access method based on a peer-to-peer network communication mode in a local area network. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. Fig. 1 shows a flowchart of a data access method based on a peer-to-peer network communication mode in a local area network according to an embodiment of the present invention. As shown in Fig. 1, the method at least includes the following steps S102 to S106.

Step S102, the first computing device initiates a data resource access request to one or more other computing devices in the same subnet, wherein the access request carries an identifier of the data resource.

Step S104, the first computing device receives a response message from at least one of the other computing devices.

Step S106, according to the response message, the first computing device selects at least one computing device from other computing devices as a data source and accesses the data resource.

The invention provides a data access method based on a peer-to-peer network communication mode in a local area network. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. More than one other computing device in the subnet initiates a data resource access request, so the data interaction can be carried out in the same subnet without crossing two or more subnets, thus solving the problem of cross-network communication in the peer-to-peer network communication mode. Or the problem of network congestion or even network paralysis caused by cross-region, improve the efficiency of data resource access, and ensure the normal communication between other computing devices.

FIG. 2 shows a schematic diagram of a local area network according to an embodiment of the present invention. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. The network node device here may be a relay device such as a switch or a router, and two or more subnets are connected via the network node device to interconnect the subnets.

The request for accessing data resources initiated in step S102 above can be implemented in various ways, and the present invention provides a preferred solution, in which the request is sent by broadcast or multicast in the subnet where the first computing device is located Data resource access request. Further, the data resource access request may be sent in a UDP (User Datagram Protocol, User Datagram Protocol) broadcast manner within the subnet where the first computing device is located. UDP is a connectionless transport layer protocol in the OSI (Open System Interconnection) reference model, which provides transaction-oriented simple and unreliable information transmission services. Although UDP has the disadvantages of not providing data packet grouping, assembling and sorting data packets, it is not a connection protocol, so it has the advantages of low resource consumption and fast processing speed. Usually, audio, video and ordinary data are transmitted when they are transmitted. UDP is used more, because even if they occasionally lose one or two packets, it will not have much impact on the receiving result.

Further, since the subnet where the first computing device is located may also have a penetration server for receiving and forwarding the access request (that is, the penetration server receives the access request and forwards the access request to computing devices in other subnets ) or the index server used to index the data sources in the local area network (that is, when the index server is used for indexing, the queried data resources may be distributed in various places on the network or in computing devices of each subnet), so in order to ensure that no To access data resources across networks, in the preferred solution of the present invention, the first device may close the service of the penetration server and/or index server in the subnet where the first computing device is located, so as to ensure that the access of data resources is In the same subnet, improve the efficiency of data resource access.

3 shows a schematic diagram of a local area network according to another embodiment of the present invention, the local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices (such as relay devices such as switches and routers), In addition, a penetration server for receiving and forwarding access requests and an index server for indexing data sources in the local area network also exist in the subnet where the first computing device is located. At this time, if the first computing device initiates a data resource access request to one or more other computing devices in the same subnet, the service of the penetration server and the index server in the subnet where the first computing device is located is closed, thereby ensuring Access to data resources is performed in the same subnet, improving the efficiency of data resource access.

After the first computing device receives a response message from at least one of the other computing devices in step S104, in step S106, according to the response message, the first computing device selects at least one computing device from other computing devices as a data source and accesses the data resource. The present invention A preferred solution is provided, in which, according to the response message, at least one computing device to be accessed is determined, and then a computing device selected from the at least one computing device to be accessed is used as a data source to access data resources. Further, the present invention can select a computing device as a data source according to comprehensive information such as the current network traffic, load status, distance to the first computing device, and response time of at least one computing device to be accessed, so as to improve access to data resources by the first computing device. response speed.

Further, the present invention can also monitor the access traffic of the computing device as the data source in real time, and when the access traffic is greater than the preset traffic threshold (such as the preset traffic threshold is 20K/s), suspend or terminate the first computing device's access to the data resource , so as to ensure smooth network in the subnet and normal information interaction of other computing devices. In addition, in other computing devices in the subnet where the first computing device is located, the maximum number of data resources can be set to control the number of access requests. If new data resources are added in other computing devices, the newly added data resources can be used to randomly Replace existing data resources to enrich data resources.

The various implementation modes of each link in the embodiment shown in FIG. 1 have been introduced above, and the data access method based on the peer-to-peer network communication mode in the local area network provided by the embodiment of the present invention will be further described below through specific preferred embodiments.

Let’s take the internal LAN of an enterprise as an example. The headquarters of the enterprise is in Beijing, and its subordinate branches 1, 2, and 3 are located in Tianjin, Shijiazhuang, and Nanjing respectively. Figure 4 shows a schematic diagram of the internal LAN of the enterprise. As shown in Figure 4, the headquarter includes two subnets, Department 1 and Department 2, Branch 1 includes one subnet, Branch 2 includes two subnets, Department 3 and Department 4, Branch 3 includes one subnet, each subnet They are connected via various network node devices, and the network node devices mentioned here may be relay devices such as routers.

Based on the intra-enterprise LAN shown in FIG. 4 , FIG. 5 shows a flowchart of a data access method based on a peer-to-peer network communication mode in an intra-enterprise LAN according to an embodiment of the present invention. As shown in Fig. 5, the method includes the following steps S502 to S506.

Step S502 , the first computing device initiates a data resource access request to one or more other computing devices in the same subnet by means of UDP broadcast, wherein the access request carries the identifier of the data resource.

Step S504, the first computing device receives a response message from at least one of the other computing devices.

Step S506, according to the response message, the first computing device selects at least one computing device from other computing devices as a data source and accesses the data resource.

For example, the first computing device in the department 1 subnet of the head office initiates a data resource access request to more than one other computing devices in the same subnet (ie, the department 1 subnet) through UDP broadcast. The first computing device then receives a response message from at least one of the other computing devices within the Department 1 subnet. Furthermore, according to the response message, the first computing device selects at least one computing device from other computing devices as a data source and accesses the data resource.

Further, if there is a penetration server in the subnet of Department 1 for receiving and forwarding the access request (that is, the penetration server receives the access request and forwards the access request to computing devices in other subnets) or is used to The index server for indexing the data sources within the network (that is, when the index server is used for indexing, the queried data resources may be distributed in various places on the network or in computing devices of each subnet), in order to ensure that data resources are not accessed across the network , shutting down the service of the penetration server and/or the index server in the subnet where the first computing device is located (that is, the department 1 subnet), so as to ensure that data resource access is performed in the same subnet, and improve the efficiency of data resource access.

It should be noted that, in practical applications, all the above optional implementation manners may be combined in any way to form optional embodiments of the present invention, which will not be repeated here.

Based on the same inventive concept, an embodiment of the present invention also provides a data access device based on a peer-to-peer network communication mode in a local area network, so as to realize the above-mentioned data access method in a local area network based on a peer-to-peer network communication mode.

Figure 6 shows a schematic structural diagram of a data access device based on a peer-to-peer network communication mode in a local area network according to an embodiment of the present invention, the local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices , the device is applied to the first computing device. Referring to FIG. 6 , the device at least includes: a request sending module 610 , a message receiving module 620 and a selecting module 630 .

Now introduce the functions of each component or device of the data access device based on the peer-to-peer network communication mode in the local area network of the embodiment of the present invention and the connection relationship between each part:

The request sending module 610 is adapted to initiate a data resource access request to one or more other computing devices in the same subnet as the first computing device, wherein the access request carries the identifier of the data resource;

A message receiving module 620, coupled with the request sending module 610, adapted to receive a response message from at least one of other computing devices;

The selecting module 630, coupled with the message receiving module 620, is adapted to select at least one computing device from other computing devices as a data source and access data resources according to the response message.

In an embodiment of the present invention, the request sending module 610 is further adapted to: send the data resource access request by broadcast or multicast in the subnet where the first computing device is located.

In an embodiment of the present invention, the above-mentioned request sending module 610 is further adapted to: send the data resource access request in the subnet where the first computing device is located by means of UDP broadcast.

In one embodiment of the present invention, FIG. 7 shows a schematic structural diagram of a data access device based on a peer-to-peer network communication mode in a local area network according to another embodiment of the present invention. Referring to FIG. 7 , the apparatus may further include a closing module 710, coupled with the request sending module 610, adapted for the request sending module 610 to initiate a data resource access request to one or more other computing devices in the same subnet as the first computing device, Turn off services of the penetration server and/or index server in the subnet where the first computing device is located, wherein the penetration server is used to receive and forward access requests, and the index server is used to index data sources in the local area network.

In an embodiment of the present invention, the selection module 630 is further adapted to: determine at least one computing device to be accessed according to the response message; and access data resources from the selected computing device in the at least one computing device to be accessed as a data source.

In one embodiment of the present invention, the device shown in FIG. 7 may also include a monitoring module 720, coupled with the selection module 630, adapted to monitor the access traffic of the computing device as the data source in real time; when the access traffic is greater than the preset traffic threshold , suspend or terminate the first computing device's access to the data resource.

According to any one of the above preferred embodiments or a combination of multiple preferred embodiments, the embodiments of the present invention can achieve the following beneficial effects:

The invention provides a data access method based on a peer-to-peer network communication mode in a local area network. The local area network is composed of more than two subnets, and the two or more subnets are connected via network node devices. More than one other computing device in the subnet initiates a data resource access request, so the data interaction can be carried out in the same subnet without crossing two or more subnets, thus solving the problem of cross-network communication in the peer-to-peer network communication mode. Or the problem of network congestion or even network paralysis caused by cross-region, improve the efficiency of data resource access, and ensure the normal communication between other computing devices.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline this disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all of the components in the data access device based on the peer-to-peer network communication mode in the local area network according to the embodiment of the present invention some or all of the features. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (12)

1. A data access method based on a peer-to-peer network communication mode in a local area network, the local area network is composed of more than two subnets, and the two or more subnets are connected via network node equipment, and the method includes: The first computing device initiates a data resource access request to one or more other computing devices in the same subnet, wherein the access request carries an identifier of the data resource; the first computing device receives a response message from at least one of the other computing devices; According to the response message, the first computing device selects at least one computing device from the other computing devices as a data source and accesses the data resource. 2. The method according to claim 1, wherein the initiating a data resource access request comprises: sending a data resource access request in a broadcast or multicast manner within the subnet where the first computing device is located. 3. The method according to claim 1 or 2, wherein the initiating a data resource access request comprises: sending a data resource access request in the form of a User Datagram Protocol (UDP) broadcast in the subnet where the first computing device is located ask. 4. The method according to any one of claims 1-3, wherein the first computing device initiates a data resource access request to more than one other computing device in the same subnet, further comprising: closing the service of the penetration server and/or index server in the subnet where the first computing device is located, wherein the penetration server is used to receive and forward the access request, and the index server is used to The data source is indexed. 5. The method according to any one of claims 1-4, wherein, according to the response message, the first computing device selects at least one computing device from the other computing devices as a data source and accesses the data resource, include: determining at least one computing device to be accessed according to the response message; The data resource is accessed from a selected computing device of the at least one computing device to be accessed as a data source. 6. The method according to any one of claims 1-5, wherein the method further comprises: Real-time monitoring of access traffic of computing devices used as data sources; When the access traffic is greater than a preset traffic threshold, suspend or terminate the first computing device from accessing the data resource. 7. A data access device based on a peer-to-peer network communication mode in a local area network, applied to a first computing device, the local area network is composed of two or more subnets, and the two or more subnets are connected via network node devices, The devices include: The request sending module is adapted to initiate a data resource access request to one or more other computing devices in the same subnet as the first computing device, wherein the access request carries the identifier of the data resource; a message receiving module adapted to receive a response message from at least one of the other computing devices; The selection module is adapted to select at least one computing device from the other computing devices as a data source and access the data resource according to the response message. 8. The device according to claim 7, wherein the request sending module is further adapted to: The data resource access request is sent in a broadcast or multicast manner in the subnet where the first computing device is located. 9. The device according to claim 7 or 8, wherein the request sending module is further adapted to: The data resource access request is sent in the subnet where the first computing device is located by means of a User Datagram Protocol (UDP) broadcast. 10. The device according to any one of claims 7-9, wherein the device further comprises: A shutdown module, adapted for the request sending module to initiate a data resource access request to one or more other computing devices in the same subnet of the first computing device, and to close the penetration server in the subnet where the first computing device is located And/or services of an index server, wherein the penetration server is used to receive and forward the access request, and the index server is used to index data sources in the local area network. 11. The device according to any one of claims 7-10, wherein the selection module is further adapted to: determining at least one computing device to be accessed according to the response message; The data resource is accessed from a selected computing device in the at least one computing device to be accessed as a data source. 12. The device according to any one of claims 7-11, wherein the device further comprises: The monitoring module is adapted to monitor the access traffic of the computing device as the data source in real time; when the access traffic is greater than a preset traffic threshold, suspend or terminate the first computing device from accessing the data resource.