Method and device for detecting network quality

Abstract

The invention discloses a method and device for detecting the network quality. The method includes the steps that an RSSI value of a main 3G link is determined through a first router; when the RSSI value is larger than an alarm threshold, the network quality of the main 3G link is determined to be link normality; when the RSSI value is smaller than or equal to the alarm threshold and larger than an error threshold, the network quality of the main 3G link is determined to be link alarming; when the network quality is link normality, a backup 3G interface is closed, and detecting messages are sent to a second router with the first sending frequency through the main 3G link; when the network quality is link alarming, the backup 3G interface is opened, and the detecting messages are sent to the second router with the second sending frequency through the main 3G link, wherein the first sending frequency is smaller than the second sending frequency. By means of the method and device, when link normality exists, the number of the sent detecting messages can be decreased; when link alarming exists, faults of the main 3G link can be detected in time, and then a backup 3G link can be rapidly started in a switched mode.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a network quality detection method and equipment. Background technique [0002] 3G (Third Generation Mobile Communication System) has high access bandwidth and can provide good quality of service. As the 3G network matures, more and more enterprise branches use 3G links instead of wired links to access the enterprise center. Such as figure 1 As shown, in order to improve the stability of branch office access, the branch router is configured with a main 3G interface and a backup 3G interface. The link that the branch router accesses to the 3G network through the main 3G interface is the main The link entering the 3G network is a backup 3G link; in addition, the central router and the 3G network can be connected in a wired manner. When the main 3G link does not fail, the branch router uses the main 3G link to communicate with the central router; when the main 3G link fails...

AI Technical Summary

Problems solved by technology

[0004] In the above process, the branch routers use the same sending frequency to send probe request packets to the central router, but it is difficult for the branch routers to accurately determine the sending frequency of the probe request packets

If the sending frequency of the detection request message is too high (for example, on the order of seconds), the burden on the main 3G link and the central router will increase when the main 3G link does not fail; if the sending frequency of the detection request message If the value is too low (for example, on the order of minutes), when the main 3G link fails, it will take a long time for the branch routers to perceive the failure of the main 3G link, which will cause the communication interruption of the branch routers for a long time

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