CDN network quality monitoring method

Abstract

The invention relates to a method for monitoring the quality of a content distribution network. The content distribution network includes a data center, a bandwidth provider switch, and an edge node. The method includes the following steps: a monitoring machine inside the data center performs a PING test on a node server in the data center; The monitoring machine inside the data center conducts a PING test on the bandwidth provider switch connected to the data center; the edge node is tested from the monitoring machine inside the data center. If the edge node is a controllable node, the PING test, download rate test and For at least part of the page Poll test, if the edge node is an uncontrollable node, perform a PING test; where the controllable node is the edge of the HTTP website service that can be logged in by the monitor of the data center and deploy the download rate test and page Poll test Nodes, uncontrollable nodes are edge nodes that cannot be logged in by data center monitors through the network or cannot deploy download rate tests and page Poll tests.

Description

technical field [0001] The invention relates to CDN network quality testing, in particular to a CDN network quality monitoring method. Background technique [0002] The full name of CDN is Content Delivery Network, that is, content distribution network. Its purpose is to publish the content of the website to the "edge" of the network closest to the user by adding a new layer of network architecture to the existing Internet, so that users can obtain the content they need nearby, and solve the Internet network congestion situation. Improve the response speed of users visiting the website. Technically, it fully solves the problem of slow response speed of users visiting websites caused by reasons such as small network bandwidth, large number of user visits, and uneven distribution of outlets. CDN is a distributed network established and covered on the bearer network and composed of service nodes distributed in different regions. It transmits the source content to the edge cl...

AI Technical Summary

Problems solved by technology

However, similar to the download rate test method, the page Poll test also depends on the tested terminal being a controllable and stable server, so it is highly dependent on the tested terminal being uncontrollable

[0012] Existing network quality tests are generally scattered because the IP library of the coverage test is relatively scattered, and the test method is single and depends on the IP address of the test object that can be controlled by itself (for example, the download rate test and the page poll test require the test object to be controllable). Impossible to test accurately if in an unfamiliar coverage area without your own server

At the same time, the IP address of the external client is tested, so there is a monitoring blind spot in the network situation closer to the CDN node

This has resulted in a situation where the test coverage is limited and the test accuracy is not high.

[0013] In addition, the existing CDN network tests can only directly see the final test results, such as the delay and packet loss rate of the test from device A to device B, the download rate, and the time spent on the poll page

In fact, there are often multiple switches or multiple network paths between A and B. From the test results from A to B, we can only know that there is a problem in the communication between A and B, but it is impossible to judge which specific network path the problem occurs in. link

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