A highly reliable network communication system and method

Abstract

The present invention proposes a highly reliable network communication system and method, the system includes a first intranet and a second intranet, the first intranet is deployed with a first server and a first communication device, and the second intranet is deployed with a The second communication device and the second server; the first communication device virtual has a first active gateway and a first backup gateway; the second communication device virtual has a second active gateway and a second backup gateway; the first active gateway and the first backup gateway The second master gateway installs the first version of the program, and connects to the network through the first version of the program to build the main communication link; the first backup gateway and the second backup gateway install the second version of the program, and through the second version of the program Network connection to build a backup communication link; the first communication device and the second communication device enable the main communication link for network communication by default, and switch to the backup communication link when the main communication link is abnormal. The invention can enhance the reliability of inter-network communication.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a highly reliable network communication system and method. Background technique [0002] At present, large companies at home and abroad usually have one headquarters and multiple branches, and the multiple branches may be distributed in different regions. In order to realize data communication between branches in different regions and the headquarters, IPSec is usually used. Establish a virtual private network (Virtual Private Network, VPN) channel between the servers through the VPN gateway to realize the network interconnection between the branch office and the headquarters, and then realize the intercommunication of data. [0003] There are corresponding programs installed in the VPN gateway. Once the program is old, outdated or insecure, the program needs to be upgraded. However, during the upgrade process, the original program needs to be uninstalled before the...

AI Technical Summary

Problems solved by technology

[0003] There are corresponding programs installed in the VPN gateway. Once the program is old, outdated or insecure, the program needs to be upgraded. However, during the upgrade process, the original program needs to be uninstalled before the upgraded program can be installed. Often the upgraded program is not fully compatible with the needs of the actual environment. Once the upgraded program has problems and cannot run normally, the original program has also been uninstalled, resulting in interruption of the network connection and poor reliability of the network connection.

In addition, some intermediate data generated during the running of the original version of the program may not be recognized by the upgraded program. Once the original program is uninstalled, it may cause network data packet loss and other problems

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