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Cross-LAN system communication method

A local area network and gateway technology, applied in the field of data communication, can solve problems such as low efficiency and poor security, and achieve the effect of ensuring security and improving link utilization

Active Publication Date: 2012-09-05
XIAMEN YAXON NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology simply establishes TCP links between central servers in different LANs in pairs through the Internet; obviously, the efficiency is low, and all servers need to be exposed to the public network, which has poor security; in order to ensure data reachability, it is also necessary to communicate between devices Routing information is added to the business data of the protocol, which brings great inconvenience to the development

Method used

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  • Cross-LAN system communication method

Examples

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Embodiment Construction

[0022] The structure of a network data processing system embodiment that adopts the cross-local area network of the present invention, such as figure 1 shown. The network data processing system has three centers, each center has its own local area network. The local area network of the first center 10 includes a device A 11 , a device B 12 , a device C 13 , and an Internet gateway 14 . The LAN of the second center 20 includes a device D 21 , a device E 22 , a device F 23 , and an Internet gateway 24 . The local area network of the third center 30 includes a device G 31 , a device H 32 , a device I 33 , and an Internet gateway 34 .

[0023] The communication protocol between system equipment is divided into data protocol and addressing protocol. The data protocol appends a data protocol header and a general protocol header before the real business data. The addressing protocol adds an addressing protocol header and a general protocol header before the service data.

[0024...

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Abstract

The invention relates to a cross-LAN system communication method which solves the problems of low efficiency and poor security. The method comprises the following steps: A. each device dynamically establishes a local device routing table for itself by using the addressing agreement; B. each interworking gateway dynamically establishes a local device routing table and a remote device routing tablefor itself by using the addressing agreement; C. each device dynamically establishes a gateway routing table for itself by using the addressing agreement; D. a source device compiles a data agreementcontaining the identification code of the source device and the identification code and the data of a target device; and E. if the identification code of the target device is recorded in the local device routing table of the source device, the source device directly sends the data agreement to the target device; or F. if the identification code of the target device is recorded in the gateway routing table of the source device, the interworking gateway of the LAN receives the data agreement and sends the data agreement to the target device by using the remote device routing table through the interworking gateway of the LAN in which the target device is arranged.

Description

technical field [0001] The invention relates to a method for data communication among multiple local area networks through the Internet. Background technique [0002] With the expansion of network data processing business, some large-scale network data processing systems often need to build sub-centers in different places to meet business needs. How to achieve efficient, convenient and safe communication between different central server clusters through the Internet is the key to the network data processing system. The existing technology simply establishes TCP links between central servers in different LANs in pairs through the Internet; obviously, the efficiency is low, and all servers need to be exposed to the public network, which has poor security; in order to ensure data reachability, it is also necessary to communicate between devices Routing information is added to the business data of the protocol, which brings great inconvenience to the development. Contents of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L12/46H04L12/56
Inventor 刘辉杨一麟时宜王松辉
Owner XIAMEN YAXON NETWORKS CO LTD
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