Method and device for detecting quality of network link

A technology of network link and link quality, applied in the core network field of the communication industry, can solve the problems of high cost and inability to detect link transmission quality quickly and effectively, and achieve the effect of low cost and simplified detection method.

Inactive Publication Date: 2011-04-27
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the defect that the transmission quality of all links in the entire network cannot be quickly and effectively detected in the prior art network link quality ...

Method used

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  • Method and device for detecting quality of network link
  • Method and device for detecting quality of network link
  • Method and device for detecting quality of network link

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The key point of this embodiment is to allow as many test data packets as possible to pass through the link under test during a test, so as to reflect more link quality problems. In this embodiment, the source routing technology is used, and the purpose of controlling the actual transmission path of the test data packet is achieved by specifying the forwarding path of the test data packet in the extended option-"source route" field of the IP data packet header.

[0033] Set up a test point in the whole network, and send test data packets at the test point, which can be simple ping test data packets or business simulation data streams, and add the link to be tested in the source routing field of the IP packet header of these data packets The IP sequence of each node on the network, through the statistical analysis of the packet loss, delay, and jitter of these data packets, the corresponding performance data such as packet loss, delay, and jitter of a series of links can ...

Embodiment 2

[0044] In this embodiment, on the basis of the first embodiment, nodes or links with quality problems are located. The process of the method for detecting network link quality in Embodiment 2 of the present invention includes:

[0045] Step S202: Generate a test route according to the topology of the network to be tested;

[0046] Step S204: The test starting point generates a test data packet, and the test data packet carries the address information of each node in the test route;

[0047] Step S206: According to the address information of each node in the test route, the test data packet is transmitted along each node in the test route;

[0048] Step S208: Obtain network link quality information of the test route according to the transmission parameters of the test data packet;

[0049] Step S210: When testing whether the link quality parameter of the route is lower than the preset parameter, if yes, execute step S212, otherwise, the process ends:

[0050] Step S212: Spli...

Embodiment 3

[0056] This embodiment will describe the method in Embodiment 2 in detail. by figure 1 The test network shown is an example. The test packet is an ICMP ping test packet; test deployment point: D; test path: D-A-C-E-D-B-C-F; F is the final destination, because the ping test packet will generate a ping response packet and send it to the ping test after reaching the final destination, which is point F The initiator of the packet (D), so the last node in the path does not write D, but the data packet can still return to point D after the traversal is completed. In this embodiment, the test data packet is not limited to the ICMPping test packet, and may be any IP data packet, and the test start point and test end point may be the same node, or may be set separately.

[0057] Test method: Send a ping test packet from point D, and arrive at the nodes A-C-E-D-B-C-F in turn. After arriving at point F, point F checks that the packet is a ping test packet, and then generates a response...

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Abstract

The invention discloses a method and a device for detecting the quality of a network link. The method comprises the following steps of: generating a test data packet which carries the address information of each node in a test route; transmitting the test data packet along each node in the test route according to the address information of each node in the test route; and acquiring the quality information of the network link of the test route according to the transmission parameters of the test data packet. The performance quality problems of all links in an entire network can be found in time and a detection method is simplified.

Description

technical field [0001] The invention relates to the core network technical field of the communication industry, in particular to a method and device for network link quality detection. Background technique [0002] As the main bearer network of operators, IP networks already have more and more service data that need to rely on IP networks all over the place to provide transmission channels. With the distribution of IP networks becoming wider, more nodes, and longer extensions, the management and quality inspection of IP networks is becoming more and more difficult. There are mainly three ways to apply the existing IP network management and quality inspection technology. [0003] The first is to use the agent installed on the network device or the host itself to report the abnormal information to the management station through the SNMP protocol after discovering abnormalities such as equipment, configuration, protocol, and data volume; or the management station can periodica...

Claims

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Application Information

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IPC IPC(8): H04L12/26
Inventor 董晓荔孙金霞尤梦李伟秦越黄昭锐韦芳樊川
Owner CHINA MOBILE COMM GRP CO LTD
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