Real-time automatic switching device and method applied to route failure

Abstract

This invention relates to a real-time automatic switching device and method applied to route failure, and is used for switching to a backup router when a router of a main link is interrupted. The device comprises a client, a switching router, a router network and an internet, which are connected in sequence; the router network comprises a main link and a plurality of backup links, which are in parallel connection with each other; the main link is provided with a main link gateway router; and each backup link is provided with a backup link gateway router. Compared with the prior art, the device is advantaged in switching routers automatically, low cost, strong performance, and so on.

Description

technical field [0001] The invention relates to the field of network detection, in particular to a real-time automatic switching device and method applied to route interruption. Background technique [0002] At present, most of the existing Linux firewalls do not support the next-hop link continuity detection function. When the main link is interrupted, the default route cannot be automatically switched to the backup link because the port is still up. If the cost is too high by purchasing a dedicated firewall, the existing general-purpose x86 firewall based on Linux system is conducive to saving costs, but this solution generally has the following disadvantages: [0003] 1) The general x86 firewall does not support the link continuity detection function due to the Iptables software of Linux; [0004] 2) When the main link is interrupted, the default route cannot be transferred to the backup link, resulting in service termination; Contents of the invention [0005] The ob...

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Problems solved by technology

[0002] At present, most of the existing Linux firewalls do not support the next-hop link continuity detection function. When the main link is interrupted, the default route cannot be automatically switched to the backup link because the port is still up. If the cost is too high by purchasing a dedicated firewall, the existing general-purpose x86 firewall based on Linux system is conducive to saving costs, but this solution generally has the following disadvantages:

[0003] 1) The general x86 firewall does not support the link continuity detection function due to the opportunity of the Linux Iptables software;

[0004] 2) When the main link is interrupted, the default route cannot be transferred to the backup link, resulting in service termination;

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