WO2018113693A1

WO2018113693A1 - Local area network device communication management method and system, and gateway device

Info

Publication number: WO2018113693A1
Application number: PCT/CN2017/117420
Authority: WO
Inventors: 李小虎; 武云飞; 姜志俊
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-12-23
Filing date: 2017-12-20
Publication date: 2018-06-28
Also published as: CN108243026A

Abstract

Disclosed are a local area network device communication management method and system, and a gateway device. A gateway device pre-establishes a communication management table of a mapping relationship between device attribute information about an LAN device, a device type, and a WAN connection used by the LAN device for accessing a network resource. When the LAN device sends communication information to the gateway device, the gateway device can determine the WAN connection used for sending out the communication information according to the communication management table and the device attribute information carried in the communication information, and sends out the communication information.

Description

LAN device communication management method, system and gateway device

Technical field

The present invention relates to the field of communications, and in particular, to a LAN device communication management method, system, and gateway device.

Background technique

With the increasing variety of home communication terminals, there are more and more LAN (Local Area Network) devices accessing gateway devices, such as digital TV set-top boxes, personal computers, game consoles (such as Xbox, PS4) and the like. These LAN devices need to access their respective network resources through different WAN (Wide Area Network) connections. A WAN connection is a virtual channel established when a home gateway device accesses a wide area network. For example, the video source server requested by the set-top box and the game server accessed by the Xbox are not in a network, which requires the home gateway device to establish two WAN connections for connecting the video source server and the game server respectively. In some cases, in order to allow different LAN devices to access network resources through different WAN connections, the port of the gateway device is usually port-bound, but in this case, the LAN device connected to the specific LAN port can only pass the corresponding The WAN connection accesses network resources. Therefore, this solution has the following drawbacks: First, the flexibility is poor, because the type of the LAN device that each port of the gateway device can access is fixed in the solution; the second is that the port utilization is low, and cannot be applied to one port access differently. The scenario of the type device.

In summary, there is an urgent need to propose a new solution to ensure that different LAN devices access network resources through different WAN connections.

Summary of the invention

Embodiments of the present invention provide a LAN device communication management method, system, and gateway device.

An embodiment of the present invention provides a communication management method for a local area network device, including: a gateway device receiving communication information sent by a local area network device, where the communication information carries device attribute information of the local area network device; Decoding the device attribute information in the communication information; the gateway device determines a wide area network (WAN) connection corresponding to the communication information based on a pre-established communication management table, wherein the communication management table includes the local area network device Device type, the device attribute information, and a mapping relationship between the WAN connections; and the gateway device transmits the communication information over the WAN connection.

The embodiment of the present invention further provides a gateway device, including: an information acquiring module, configured to acquire device attribute information and a device type of a local area network device; and a mapping establishing module configured to: according to the device attribute information, the device type, Establishing, by the WAN connection corresponding to the device attribute information and the device type, the communication management table; the information receiving module is configured to receive communication information sent by the local area network device, where the communication information carries the The device attribute information of the local area network device, the device attribute information may include a physical address or a hardware identifier of the local area network device; a connection query module configured to be based on the pre-established communication management table and from the communication information The parsed device attribute information determines a WAN connection corresponding to the communication information; and an information outgoing module configured to transmit the communication information over the WAN connection.

An embodiment of the present invention further provides a local area network device communication management system, where the local area network device communication management system includes at least one local area network device and a gateway device as described above.

DRAWINGS

1 is a flowchart of a method for managing communication of a local area network device according to Embodiment 1 of the present invention;

2 is a flowchart of creating a communication management table in Embodiment 1 of the present invention;

3 is a flowchart of acquiring a device type by a gateway device according to Embodiment 1 of the present invention;

4 is a flowchart of forwarding, by a gateway device, communication information according to Embodiment 1 of the present invention;

5 is a sequence diagram of communication management performed by a home gateway to a local area network device according to Embodiment 2 of the present invention;

6 is a schematic structural diagram of a gateway device according to Embodiment 3 of the present invention;

FIG. 7 is a schematic structural diagram of hardware of a gateway device according to Embodiment 3 of the present invention.

detailed description

The present invention will be further described in detail below by way of embodiments with reference to the accompanying drawings.

Embodiment 1

Since the network resources required by different LAN devices are not in the same network, different LAN devices need to access their respective network resources through different WAN connections. The "different networks" described in this article have at least two things:

The first type of server that provides network resources for different LAN devices is located on different network segments. For example, a video resource server corresponding to a set top box in a home is located in the 14.25.XX network segment, and a game machine server that provides an online game service for the game machine. In the network segment 104.75.XX, the two servers are on different networks.

The second type of servers that provide network resources for different LAN devices are located in the same network segment, but different servers use different VLANs (Virtual Local Area Network). For example, online web games correspond to VLAN 100, but online video viewing corresponds to VLAN 200. In this case, the WAN connection used by the two types of LAN devices, the game console and the set-top box, is also different.

In the related art, when the gateway device ensures that each LAN device accessing itself accesses the network resource through the corresponding WAN connection, it is more or less necessary to make some sacrifice to the actual port resource or processing resource of the gateway device. Moreover, when the gateway device does not use port binding to manage communication of the LAN device, all LAN devices accessing the gateway device may not be managed. To address these problems, the embodiment provides a communication management method for a local area network device. FIG. 1 is a flowchart of a method for managing communication of a local area network device according to Embodiment 1 of the present invention. As shown in FIG. 1 , the process includes the following steps:

S102. The gateway device receives the communication information sent by the LAN device.

When the LAN device accesses its corresponding network resource, that is, accesses the network resource it needs, the gateway device sends a communication message for characterizing the request to the server providing the network resource. The communication information carries device attribute information of the information transmitting end, that is, device attribute information of the LAN device carrying the communication information. After receiving the communication information sent by the LAN device, the gateway device can parse the communication information and obtain the device attribute information of the information sending end.

The device attribute information of the LAN device includes, but is not limited to, a hardware identifier of the LAN device, a MAC (Media Access Control) address (physical address) of the LAN device, and the like. In this embodiment, the device attribute information uniquely corresponds to the LAN device accessed by the gateway device, so that the gateway device can accurately distinguish each LAN device that accesses itself. In this embodiment, the device attribute information is selected because the device attribute information of the LAN device itself is unique and cannot be counterfeited. However, in fact, other device information that can uniquely distinguish each LAN device that accesses the same gateway device may be used instead of the device attribute information. For example, you can customize the difference information to replace the device attribute information, as long as the difference information of each LAN device under a gateway device is unique. For example, it is also feasible that the user separately sets the difference information of the set top box, the game machine, and the notebook computer that access the same gateway device to 01, 02, and 03 respectively. It should be understood by those skilled in the art that when the user customizes the setting difference information, it should be ensured that the customized difference information has a long-term unique identifier for a LAN device under one gateway device.

Specifically, if the MAC device is used to uniquely distinguish the LAN device, the LAN device does not need to perform special processing on the communication information when transmitting the communication information to the gateway device, and the gateway device can directly parse the corresponding MAC address. address. If the distinguishing information set by the user is used to uniquely identify the LAN device, it is possible that the LAN device needs to add the difference information of the LAN device to the communication information when transmitting the communication information.

S104. The gateway device determines, according to the pre-established communication management table and the device attribute information acquired from the communication information, a WAN connection manner corresponding to the communication information.

After receiving the communication information sent by the LAN device, the gateway device may parse the device attribute information of the LAN device from the communication information, and then according to the device type of the LAN device in the communication management table established in advance, the device attribute information of the LAN device, and the WAN. The mapping relationship between the three connections determines the WAN connection corresponding to the device attribute information, so that the WAN connection required to send the communication information can be determined.

Before receiving the communication information of the LAN device, the gateway device needs to establish a communication management table. In order to establish the communication management table, the gateway device needs to obtain device attribute information and device type of the LAN device accessing itself. The process of establishing a communication management table in advance by the gateway device will be described below with reference to FIG. FIG. 2 is a flowchart of creating a communication management table in Embodiment 1 of the present invention. As shown in Figure 2, the process includes the following steps:

S202. The gateway device acquires device attribute information and a device type of the LAN device.

The gateway device obtains the device attribute information and the device type of the LAN device, so as to establish a mapping relationship between the device attribute information, the device type, and the WAN connection. The device attribute information and the device type can be acquired together or separately. In this embodiment, the gateway device obtains the device type of the LAN device through the universal plug and play technology. The following is a brief introduction to the Universal Plug and Play (UPnP) technology:

UPnP is an architecture for common peer-to-peer network connections for PCs and smart devices (or instruments), especially in the home. Based on Internet standards and technologies (such as TCP/IP, HTTP, and XML), UPnP enables such devices to automatically connect and work with each other, making networks (especially home networks) possible for more people. UPnP includes multiple protocols, and SSDP (Simple Service Discovery Protocol) refers to a simple service discovery protocol, which is one of the core protocols of UPnP technology. When the LAN device accesses the gateway device, it sends a notification message (NOTIFY message) of the SSDP protocol to announce that it has access to the network. The gateway device may acquire the device type of the LAN device based on the notification message, and the following describes the process of the gateway device acquiring the device type of the LAN device. FIG. 3 is a flowchart of acquiring a device type by a gateway device according to Embodiment 1 of the present invention. As shown in FIG. 3, the process includes the following steps:

S302. The gateway device receives the notification message sent by the LAN device.

After receiving the notification message sent by the LAN device, the gateway device can confirm that the LAN device has accessed the network. After that, the LAN device has a need to access network resources, so the gateway device needs to determine its device type. The LAN device can send a notification message to the gateway device through the Simple Service Discovery Protocol after accessing the gateway device.

S304. The gateway device parses the notification message to obtain a URL (Uniform Resource Locator) of the description file of the LAN device.

The location field of the notification message carries the URL of the description file of the device. Therefore, the gateway device only needs to parse the notification message to obtain the URL of the description file of the LAN device, for example, the URL of the description file of a LAN device is http. //192.168.1.20:49152/des.xml.

S306. The gateway device accesses the description file according to the parsed URL to obtain a device type of the LAN device.

After the gateway device parses the URL of the description file of the LAN device, the description file of the LAN device can be accessed according to the URL. The description file is, for example, "des.xml", and the <modelName> in the description file des.xml describes the type of the LAN device. For example, after the gateway device accesses the description file according to http//192.168.1.20:49152/des.xml, Obtain such information from the description file: "<modelName>STB</modelName>", which means that the device type of the LAN device is a set top box.

In addition, before the gateway device accesses the description file of the LAN device according to the URL of the LAN device, for example, a TCP (Transmission Control Protocol) connection should be established with the LAN device. Then, the description file corresponding to the URL is accessed through HTTP (Hyper Text Transfer Protocol), and the device type of the LAN device is obtained from the description file.

For the manner in which the gateway device obtains the device attribute information of the LAN device, in the embodiment, the device attribute information of the device can be actively reported by the LAN device, and the device attribute information of the LAN device can be obtained by the gateway device actively sending the inquiry message. In this embodiment, the device attribute information is a MAC address of the LAN device, and the MAC address is obtained by parsing the notification message sent from the LAN device to the gateway device. Therefore, in this embodiment, the gateway device is based on the universal Plug and Play technology can get the device attribute information and device type of the LAN device together.

In addition to the foregoing, the gateway device may obtain the device type or the device attribute information of the LAN device by using other methods, for example, the gateway device receives the information actively sent by the LAN device. The device type or device attribute information of the LAN device is included in the information. Alternatively, after the LAN device accesses the gateway device, the gateway device actively sends the inquiry information to the LAN device, and after receiving the inquiry information, the LAN device sends the information including the device attribute information and/or the device type to the gateway device according to the inquiry information. .

S204. The gateway device establishes a communication management table based on the acquired device type, device attribute information, and a WAN connection corresponding to the device attribute information and the device type.

In the subsequent process, the communication management table is mainly used by the gateway device to query the WAN connection corresponding to each LAN device. The correspondence between different LAN devices and different WAN connections is mainly determined by the mapping relationship between the device attribute information of the LAN device, the device type, and the WAN connection used by the LAN device to access the required network resources. Therefore, after the gateway device obtains the device type and the device attribute information, a mapping relationship is established between the two and the WAN connection, and the mapping relationship is recorded through the communication management table.

It can be understood that the gateway device does not need to establish a communication management table every time before receiving the communication information of the LAN device. It may also be created once after a LAN device establishes a connection with the gateway device, and the gateway device does not need to re-create a communication management table for the LAN device after the LAN device accesses the gateway device and does not disconnect.

S106. The gateway device connects the outgoing communication information by using the determined WAN connection.

After the gateway device determines the WAN connection corresponding to the communication information, the communication information of the LAN device can be sent out through the WAN connection, so that the LAN device can access the network resources required by the LAN device through the communication information.

After the communication information arrives at the gateway device, it may be necessary to perform some forwarding processing inside the gateway device to perform forwarding. The intermediate processing may need to be performed based on the device attribute information. However, the device attribute information of some LAN devices (such as the MAC address of the device) may be relatively long, which may cause the gateway device to be inconvenient when transmitting communication information. Therefore, in this embodiment, the communication management table may further include an identification identifier, where the length of the identification identifier is smaller than the length of the MAC address of the LAN device, and respectively corresponding to the device type and the WAN connection. Because the device attribute information of the LAN device has a corresponding relationship with the device type, when the gateway device parses and determines the device attribute information of a LAN device from the received communication information in a subsequent management process, it can be determined. The device type of the LAN device may further set an identification identifier corresponding to the device type for the communication information, so as to conveniently select a WAN connection corresponding to the identification identifier when forwarding the communication information. Table 1 shows a communication management table provided by this embodiment.

Table 1

It can be understood that, in this embodiment, there may be multiple LAN devices of the same type under one gateway device, for example, in a home, there are two game machines, both of which belong to the game machine type, but they Can have different device attribute information. In addition, other information may be included in the actual communication management table. Moreover, the embodiment does not limit the relationship between the WAN connection, the identification identifier, the LAN device type, and the device attribute information in the form of the above table, as long as the communication management table can represent the WAN connection and the LAN device. The above mapping relationship exists between the type and the device attribute information.

The process of forwarding the communication information by the gateway device will be described below with reference to FIG. 4. 4 is a flowchart of a gateway device forwarding communication information according to Embodiment 1 of the present invention. As shown in FIG. 4, the process includes the following steps:

S402. The gateway device determines, according to the communication management table, an identification identifier corresponding to the device attribute information carried by the communication information.

After the gateway device parses the device attribute information of the LAN device from the communication information, the identification identifier corresponding to the LAN device can be determined. For example, in this embodiment, the device attribute information of the LAN device is user-defined, and the gateway device If the parsed device attribute information is "00:11:22:33:22:10", the identification identifier corresponding to the LAN device may be determined as "B" according to the communication management table.

S404. The gateway device is an identification identifier corresponding to the communication information identifier.

The gateway device identifies the identification for the communication information so that it can subsequently simply identify which WAN connection the communication information should be sent over. For example, in the above example, the gateway device may mark the identification identifier "B" on the communication information.

S406. The gateway device selects a corresponding wide area network connection for the communication information according to the identification identifier marked for the communication information, and sends the communication information.

When the gateway device forwards the communication information, the gateway device determines, according to the communication management table and the identification identifier marked on the communication information, the WAN connection that the LAN device needs to access the required network resource, and sends the communication information by using the corresponding WAN connection. Go out.

It can be understood that the identification identifier is only an auxiliary information for facilitating the actual communication information forwarding by the gateway device, and is not necessary for implementing the solution of the embodiment.

In the local area network device communication management method provided by the embodiment, the gateway device obtains the device type of the LAN device by using the universal plug-and-play technology, and the manner of obtaining the device type is different from the manner in which the device type is obtained through DHCP in the related art. The device type of all LAN devices connected to the gateway device can be obtained without distinguishing the IP configuration mode of the LAN device. After acquiring the device type and device attribute information of the LAN device, the gateway device creates a mapping relationship between the device type, the device attribute information, and the WAN connection used by the LAN device to access the network resource, where the device attribute information is inherent to the LAN device. Attribute information, therefore, device attribute information does not change and can be used to characterize LAN devices for a long time. When the LAN device needs to send the communication information to access the network resource, the gateway device may determine the WAN connection for sending the communication information according to the foregoing mapping relationship, so that the port of the gateway device is not rigidly bound, and the IP address of each LAN device does not need to be kept at any time. In this case, it is possible to ensure that different LAN devices access the network using different WAN connections. Compared with the related art in which the gateway device port resources are sacrificed or the gateway device processing performance is sacrificed, and the IP address of the LAN device is always concerned, the resource utilization of the gateway device is not only improved, but also the communication of all the LAN devices under the gateway device can be performed. The management of the same way further simplifies the management of the gateway device.

Embodiment 2

In this embodiment, the LAN device communication management method in Embodiment 1 is further described by using the gateway device as a home gateway as a specific example. FIG. 5 is a sequence diagram of communication management of a local area network device by a home gateway according to Embodiment 2 of the present invention. As shown in FIG. 5, the timing diagram includes the following steps:

S501. The home gateway establishes a first mapping relationship between the identifier, the device type, and the WAN connection.

The set-top box needs to access the WAN resources through the WAN connection A. The game machine (such as the Xbox) needs to access the WAN environment of the WAN resources through the WAN connection B, and the home gateway generates the first mapping relationship as shown in Table 2.

Table 2

设备类型Equipment type	WAN连接WAN connection	识别标识Identification mark
机顶盒Set top box	WAN连接AWAN connection A	AA
XboxXbox	WAN连接BWAN connection B	BB

S502. The LAN device sends an SSDP notification message to the home gateway.

When the set-top box and the Xbox access the home gateway, they send an SSDP NOTIFY message to the home gateway to announce that they have access to the network.

S503. The home gateway parses the notification message to obtain a description file URL and device attribute information of the LAN device.

The URL of the LAN device description file is in the Location field of the notification message, and the home gateway only needs to parse the notification message to obtain the URL of the LAN device description file. In addition, the home gateway can obtain the MAC address of the LAN device from the notification message by parsing the notification message sent by the LAN device. For example, the MAC address of a LAN device is “00:11:22:33:44:55”, and the home gateway can This MAC address is used as device attribute information of the LAN device.

S504. The home gateway establishes a TCP connection with the LAN device.

It should be understood that the communication connection established by the home gateway with the LAN device may be any other connection having a similar function in addition to the TCP connection.

S505. The home gateway accesses the description file of the LAN device to obtain the device type of the LAN device.

The home gateway obtains a description file corresponding to the URL through HTTP. Then, according to <modelName>STB</modelName> in the device description file, the device type of the LAN device accessing the home gateway is STB, that is, the set top box.

Based on the above manner, the home gateway can also obtain the device type of the Xbox accessing the home gateway and its device attribute information.

S506. The home gateway establishes a communication management table.

Based on the first mapping relationship shown in Table 2, and the device type and device attribute information acquired by the home gateway according to the notification message, the communication management table as shown in Table 3 can be generated.

table 3

Although in the present embodiment, the home gateway establishes the first mapping relationship at the beginning, it should be understood that the home gateway may also create a communication management table after obtaining all the information.

S507, the home gateway releases the TCP connection with the LAN device

When the home gateway writes the device attribute information of the LAN device and its device type to the communication management table, the home gateway can release the TCP connection previously established with the LAN.

S508. The LAN device determines that the communication management table on the home gateway side has been maintained.

When the set-top box, Xbox, or other LAN device determines that the TCP connection between itself and the home gateway has been released, it is known that the home gateway has maintained the management information table and can receive the service message sent by the LAN device.

S509. Send a service packet to the home gateway.

The LAN device sends a service packet to the home gateway to access the network resources required by the LAN device after the home gateway forwards the service packet.

S510: The home gateway prepares the packet forwarding.

The home gateway parses the service packet to obtain the device attribute information of the LAN device, for example, parses the MAC address as "00:11:22:33:22:10".

According to the correspondence between the MAC address and the identification identifier in the communication management table, the home gateway determines that the identification identifier that the message should be marked is "B", and identifies the identifier "B" for the message identifier.

S511. The home gateway forwards the service packet to the server.

The home gateway identifies the outgoing service packet of the WAN connection B corresponding to the identifier "B" in the communication management table.

In the local area network device communication management method provided by the embodiment of the present invention, after obtaining the device attribute information of the LAN device and the device type of the LAN device, the home gateway establishes a communication management table, and the device attribute information can uniquely identify a LAN device for a long time. Therefore, in this embodiment, the home gateway can ensure that different LAN devices use different WAN connections to access the network without rigidly binding their own ports and without paying attention to the IP addresses of the LAN devices at any time. Compared with the related art in which the home gateway port resource is sacrificed or the gateway device processing performance is sacrificed, and the IP address of the LAN device is always concerned, the resource utilization of the home gateway and the flexibility and uniformity of the LAN device communication management are greatly improved. Sex.

Embodiment 3

This embodiment provides a gateway device. FIG. 6 is a schematic structural diagram of a gateway device according to Embodiment 3 of the present invention.

As shown in FIG. 6, the gateway device 60 includes an information obtaining module 602, a mapping establishing module 604, an information receiving module 606, a connection query module 608, and an information outgoing module 610. The information acquisition module 602 is configured to acquire device attribute information and device type of the LAN device. The mapping establishment module 604 is configured to establish a communication management table according to the device attribute information, the device type, the WAN connection manner corresponding to the device attribute information and the device type. The information receiving module 606 receives the communication information sent by the local area network device, where the communication information carries the device attribute information of the local area network device. The wide area network connection used by the outgoing communication information is then determined by the connection inquiry module 608 based on the pre-established communication management table and the device attribute information acquired from the communication information. Finally, the information outgoing module 610 connects the outgoing communication information through the determined wide area network.

When the LAN device accesses its corresponding network resource, that is, accesses the network resource it needs, the information receiving module 606 transmits the communication information for characterizing the request to the server providing the network resource. The communication information carries device attribute information of the information transmitting end, that is, device attribute information of the LAN device that transmits the communication information. After the information receiving module 606 receives the communication information sent by the LAN device, the information may be parsed to obtain the device attribute information of the information sending end.

The device attribute information of the LAN device includes, but is not limited to, a hardware unique identifier of the LAN device, a MAC address of the LAN device, and the like. In this embodiment, the device attribute information uniquely corresponds to the LAN device accessed by the gateway device 60, so that the gateway device 60 can accurately distinguish the LAN devices of the access gateway device 60. In this embodiment, the device attribute information is selected because the device attribute information of the LAN device itself is unique and cannot be counterfeited. However, in fact, other device information that can uniquely distinguish each LAN device that accesses the same gateway device may be used instead of the device attribute information. For example, you can customize the difference information to replace the device attribute information, as long as the difference information of each LAN device under a gateway device is unique. For example, it is also feasible that the user separately sets the difference information of the set top box, the game machine, and the notebook computer that access the same gateway device 60 to 01, 02, and 03, respectively.

Specifically, if the LAN device is uniquely distinguished by the MAC address of the LAN device, the LAN device does not need to perform special processing on the communication information when transmitting the communication information to the information receiving module 606, and the information receiving module 606 can directly parse the communication information. The corresponding MAC address is output. If the distinguishing information set by the user is used to uniquely identify the LAN device, it is possible that the LAN device needs to add the difference information of the LAN device to the communication information when transmitting the communication information.

After receiving the communication information sent by the LAN device, the information receiving module 606 can parse the device attribute information of the LAN device from the communication information, and then according to the device type of the LAN device and the device attribute of the LAN device in the communication management table established in advance. The mapping relationship between the information and the WAN connection determines the WAN connection corresponding to the device attribute information, so that the WAN connection required for the outgoing communication information can be determined.

Before receiving the communication information of the LAN device, the gateway device 60 needs to establish a communication management table. In order to establish the communication management table, in this embodiment, the device attribute information and the device type may be acquired together or separately. In the present embodiment, the information acquisition module 602 acquires the device type of the LAN device through the Universal Plug and Play technology (UPnP) described above.

When the LAN device accesses the gateway device 60, it sends a notification message (NOTIFY message) of the SSDP protocol to announce that it has accessed the network. The information acquisition module 602 can acquire the device type of the LAN device based on the notification message. The following describes the process of the information acquisition module 602 acquiring the device type of the LAN device.

After receiving the notification message sent by the LAN device, the information obtaining module 602 can confirm that the LAN device has accessed the network. After that, the LAN device has a need to access network resources, so the information acquisition module 602 needs to determine its device type. The LAN device can send a notification message to the gateway device through the Simple Service Discovery Protocol after accessing the gateway device.

The URL of the description file of the device is included in the Location field of the notification message. Therefore, the information acquisition module 602 can obtain the URL of the LAN device description file only by parsing the notification message, for example, the URL of a LAN device description file is http. //192.168.1.20:49152/des.xml.

After the information obtaining module 602 parses the URL of the description file of the LAN device, the profile of the LAN device can be accessed according to the URL. The description file is, for example, "des.xml", and the <modelName> in the description file des.xml describes the type of the LAN device. For example, the information acquisition module 602 accesses the description file according to http//192.168.1.20:49152/des.xml. You can get this information from the description file: "<modelName>STB</modelName>", which means that the device type of the LAN device is set-top box.

In addition, the information acquisition module 602 should establish a TCP connection with the LAN device before accessing the description file of the LAN device according to the URL of the LAN device. Then, the description file corresponding to the URL is accessed through HTTP, and the device type of the LAN device is obtained from the description file.

For the manner in which the information acquisition module 602 obtains the device attribute information of the LAN device, in the embodiment, the device information of the LAN device may be actively reported by the LAN device, or the device may be sent by the information acquisition module 602 to obtain the device of the LAN device. Attribute information. In this embodiment, the device attribute information is the MAC address of the LAN device, and the MAC address can be obtained by parsing the notification message sent from the LAN device to the information acquiring module 602. Therefore, in this embodiment, the information acquiring module The 602 can obtain the device attribute information and the device type of the LAN device together based on the universal plug and play technology.

The information acquiring module 602 may acquire the device type or device attribute information of the LAN device by using other methods, for example, the information acquiring module 602 receives the LAN device. The information sent actively includes the device type or device attribute information of the LAN device in the information. Alternatively, after the LAN device accesses the gateway device 60, the information acquiring module 602 actively sends the inquiry information to the LAN device, and after receiving the inquiry information, the LAN device sends the device attribute information and/or the device to the gateway device according to the inquiry information. Type of information.

The communication management table created by the mapping establishment module 604 is mainly used in the subsequent process to connect the query module to query the WAN connection corresponding to each LAN device. The correspondence between different LAN devices and different WAN connections is mainly determined by the mapping relationship between the device attribute information of the LAN device, the device type, and the WAN connection used by the LAN device to access the required network resources. Therefore, after the information acquisition module 602 obtains the device type and the device attribute information, the mapping establishment module 604 establishes a mapping relationship between the two and the WAN connection, and records the mapping relationship through the communication management table.

It can be understood that the mapping establishment module 604 does not need to establish a communication management table every time the communication information of the LAN device is received. It may also be created once after a LAN device establishes a connection with the gateway device 60. After the LAN device accesses the gateway device 60 and does not disconnect, the mapping establishment module 604 does not need to re-create a communication management table for the LAN device.

After the connection query module 608 determines the WAN connection corresponding to the communication information, the information outgoing module 610 can send out the communication information of the LAN device through the WAN connection, so that the LAN device can access the LAN device through the communication information. Internet resources.

After the communication information arrives at the gateway device, it may be necessary to perform some forwarding processing inside the gateway device to perform forwarding. The intermediate processing may need to be performed based on the device attribute information. However, the device attribute information of a part of the LAN device (for example, the MAC address of the device) may be relatively long, which may cause the gateway device to be inconvenient when transmitting the communication information. Therefore, in the embodiment, the communication created by the mapping establishing module 604 is not convenient. The management table may further include an identification identifier, where the length of the identifier is smaller than the length of the MAC address of the LAN device, and corresponds to the device type and the WAN connection respectively. Since the device attribute information of the LAN device has a correspondence relationship with the device type, when the information receiving module 606 receives a piece of communication information, and the connection query module 608 parses and determines the device attribute of a LAN device from the received communication information. When the information is used, the device type of the LAN device can be determined, and an identification identifier corresponding to the device type can be set for the communication information, so as to conveniently select the WAN connection corresponding to the identification identifier when forwarding the communication information.

As shown in Table 1, there may be multiple LAN devices of the same type under one gateway device 60. For example, in a home, there are two game machines, both of which belong to the game machine type, but they may have different Device attribute information. In addition, other information may be included in the actual communication management table. Moreover, the present embodiment is also not limited to the relationship between the WAN connection, the identification identifier, the LAN device type, and the device attribute information that must be stored in the gateway device 60 in the form of the above table, as long as the communication management table can represent the WAN connection, the LAN. The above mapping relationship exists between the device type and the device attribute information. The process of forwarding the communication information by the connection query module 608 and the information outgoing module 610 is described below.

After the connection query module 608 parses the device attribute information of the LAN device from the communication information, the identification identifier corresponding to the LAN device can be determined. For example, in this embodiment, the device attribute information of the LAN device is user-defined, and If the device attribute information obtained by the connection query module 608 is "00:11:22:33:22:10", the identification identifier corresponding to the LAN device can be determined as "B" according to the communication management table.

The connection query module 608 identifies the identification for the communication information so that it can subsequently be easily identified by which WAN connection the communication information should be sent. For example, in the above example, the connection query module 608 can mark the identification identifier "B" on the communication information.

The information outgoing module 610 selects a corresponding wide area network connection for the communication information according to the identification identifier marked on the communication information, and issues the communication information.

When the information outgoing module 610 forwards the communication information, it determines the WAN connection that the LAN device needs to use to access the required network resources according to the communication management table and the identification identifier on the communication information, and sends the communication information by using the corresponding WAN connection. Go out.

It can be understood that the identification identifier is only an auxiliary information for facilitating the forwarding of the actual communication information by the information outgoing module 610, and is not necessary for implementing the solution of the embodiment.

In addition, in the embodiment, the mapping establishment module 604 may also create a first mapping relationship before the information acquiring module 602 acquires the device attribute information and the device type of the LAN device, and the first mapping relationship may be as shown in Table 2. After the information obtaining module 602 obtains the device attribute information and the device type, the mapping establishing module 604 can directly supplement the device attribute information of the LAN device based on the first mapping relationship (Table 2), thereby completing the work of creating the communication management table.

The embodiment further provides a local area network device communication management system, which includes one or more local area network devices and the above-mentioned gateway device. The local area network device accesses the gateway device, and communicates with the external wide area network through the gateway device, and the gateway device not only transmits information from the wide area network. Forwarded to the LAN device, and also establishes a communication management table to manage the communication of the LAN device, and forwards the information sent by the LAN device to the external WAN based on the communication management table.

The hardware structure of the network device in this embodiment will be described below. FIG. 7 is a schematic structural diagram of hardware of a gateway device according to Embodiment 3 of the present invention.

As shown in FIG. 7, the gateway device 7 includes a processor 701, a memory 702, and a communication device 703. The communication device 703 can acquire the device attribute information of the LAN device under the control of the processor 701 and acquire the device type of the LAN device based on the universal plug and play technology, and then the processor 701 creates a communication management table based on the information acquired by the communication device 703. The communication management table can be stored in the memory 702. When the communication device 703 receives the communication information for requesting the network resource transmitted by the LAN device, the processor 701 may parse the communication information, thereby acquiring the device attribute information of the LAN device transmitting the communication information. The processor then determines a WAN connection to transmit the communication information based on the communication management table stored in the memory 702, and controls the communication device 703 to select a corresponding WAN connection to forward the communication information. That is to say, the functions of the information acquisition module in the second embodiment can be implemented by the communication device 703 of the gateway device 7 and the processor 701, and the functions of the information receiving module and the information delivery module can be implemented by the communication device 703. The functions of the mapping establishment module and the connection query module can be implemented by the processor 701 and the memory 702.

The gateway device provided in this embodiment acquires the device type of the LAN device and the device attribute information that can uniquely identify a LAN device for a long time, and creates a device type, device attribute information, and a WAN connection used by the LAN device to access the network resource. The mapping relationship, the device attribute information is the intrinsic attribute information of the LAN device. Therefore, the device attribute information does not change, and the LAN device can be characterized for a long time. When the LAN device needs to send the communication information to access the network resource, the gateway device may determine the WAN connection for sending the communication information according to the foregoing mapping relationship, so that the port of the gateway device is not rigidly bound, and the IP address of each LAN device does not need to be kept at any time. In this case, it is possible to ensure that different LAN devices access the network using different WAN connections. Compared with the related art in which the gateway device port resources are sacrificed or the gateway device processing performance is sacrificed, and the IP address of the LAN device is always concerned, the resource utilization of the gateway device is not only improved, but also because the acquisition device type is through the universal plug and play technology. In the related art, the method of obtaining the device type by using DHCP is different, and the device type of all LAN devices connected to the gateway device can be obtained without distinguishing the IP configuration mode of the LAN device, and all LAN devices under the gateway device can be obtained. The communication is managed in the same way, so the management of the gateway device is further simplified.

Although the above embodiments are described by taking a home network and a home gateway as an example, those skilled in the art should understand that the present invention is also applicable to a local area network and a gateway device other than a home gateway, such as an office, a hospital, or a school. LAN and gateway devices used in the middle.

Obviously, those skilled in the art should understand that the modules or steps of the above embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed among multiple computing devices. On the network, or they may be implemented by program code executable by the computing device so that they can be stored in a computer storage medium (ROM/RAM, disk, optical disk) by a computing device, and in some cases The steps shown or described may be performed in a different order than that described herein, or they may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof may be implemented as a single integrated circuit module. Therefore, the invention is not limited to any particular combination of hardware and software.

Industrial applicability

The embodiment of the invention provides a LAN device communication management method, system and gateway device, which improves the flexibility of the gateway device for LAN device communication management and the resource utilization of the gateway device.

Claims

A LAN device communication management method includes:

The gateway device receives the communication information sent by the local area network device, where the communication information carries the device attribute information of the local area network device;

The gateway device parses the device attribute information from the communication information;

The gateway device determines a wide area network connection corresponding to the communication information based on a pre-established communication management table, where the communication management table includes a device type of the local area network device, the device attribute information, and the wide area network connection Mapping relationship between;

The gateway device transmits the communication information through the wide area network connection.
The method for managing a local area network device communication according to claim 1, wherein before the receiving, by the gateway device, the communication information sent by the local area network device, the method further comprises:

Obtaining, by the gateway device, the device attribute information of the local area network device and the device type;

The gateway device establishes the communication management table according to the device attribute information, the device type, and the wide area network connection corresponding to the device attribute information and the device type.
The method for managing a local area network device communication according to claim 2, wherein the obtaining, by the gateway device, the device type of the local area network device comprises:

Receiving, by the gateway device, a notification message sent by the local area network device;

The gateway device parses the notification message to obtain a uniform resource locator of a description file of the local area network device;

The gateway device accesses the description file according to the uniform resource locator to obtain the device type.
The method for managing a local area network device communication according to claim 3, wherein the accessing the description file by the gateway device according to the uniform resource locator to obtain the device type comprises:

The gateway device establishes a connection with a transmission control protocol of the local area network device;

And the gateway device accesses the description file corresponding to the uniform resource locator by using a hypertext transfer protocol and obtains the device type from the description file.
The local area network device communication management method according to any one of claims 1 to 4, wherein the device attribute information includes a physical address of the local area network device.
The method for managing a local area network device communication according to any one of claims 1 to 4, wherein the device attribute information unique identification information comprises a hardware identifier of the local area network device.
The local area network device communication management method according to claim 3 or 4, wherein the device attribute information is a physical address of the local area network device, and the obtaining, by the gateway device, the device attribute information of the local area network device includes:

The gateway device parses the physical address of the local area network device from the notification message sent by the local area network device based on a universal plug and play technology.
The local area network device communication management method according to claim 7, wherein the gateway device determines a wide area network connection corresponding to the communication information based on a pre-established communication management table, and transmitting the communication information through the wide area network connection comprises:

The gateway device selects a corresponding wide area network connection for the communication information according to the communication management table and an identification identifier corresponding to the device attribute information parsed from the communication information, and sends the communication information, wherein The identification identifier is included in the communication management table and configured to identify the physical address, and wherein the length of the identification identifier is less than a length of the physical address.
The method for managing a local area network device communication according to claim 7, wherein the gateway device obtains the connection with the gateway device in a manner that does not distinguish the IP configuration mode of the local area network device by using the universal plug and play technology. The device type of all LAN devices.
A gateway device comprising:

An information acquiring module configured to acquire device attribute information and a device type of the local area network device;

a mapping establishing module, configured to establish a communication management table according to the device attribute information, the device type, and the wide area network connection corresponding to the device attribute information and the device type;

An information receiving module, configured to receive communication information sent by the local area network device, where the communication information carries the device attribute information of the local area network device;

a connection query module configured to determine a wide area network connection corresponding to the communication information based on the communication management table established in advance and the device attribute information parsed from the communication information;

An information outgoing module configured to transmit the communication information over the wide area network connection.
The gateway device of claim 10, wherein the information acquisition module acquires the device type by a universal plug and play technology.
The gateway device according to claim 10, wherein the information acquisition module parses the notification message by receiving a notification message sent by the local area network device, and acquires a uniform resource locator of a description file of the local area network device, and Obtaining the device type according to the uniform resource locator accessing the description file.
A gateway device according to any of claims 10-12, wherein the device attribute information comprises a physical address of the local area network device.
The gateway device of any of claims 10-12, wherein the device attribute information comprises a hardware identification of the local area network device.
A local area network device communication management system, including at least one local area network device and

A gateway device according to any of claims 10-14.