Method for measuring multimedia multicast service quality based on client

A technology of service quality and measurement method, applied in the application field of computer network technology, which can solve problems such as intrusion, deployment difficulties, and inability to truly reflect

Inactive Publication Date: 2010-03-17
SOUTHEAST UNIV
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Problems solved by technology

The advantage of passive measurement is that it does not increase the network load and has no effect on the behavior of the network, but the disadvantage is that because passive measurement measures a single point, it is difficult to measure the end-to-end performance of the network, and it is easy to cause security problems
The advantage of active measurement is that the controllability of the measurement process is relatively high, and it is easy to measure end-to-end performance. The disadvantage is that its intrusion characteristics increase the network load. In addition, the results obtained by active measurement based on the detection packet cannot be true Reflect the situation in the actual network
[0005] In addition, multicast service quality measurement is different from unicast service quality measurement. For unicast, the packet loss rate, one-way delay, and delay jitter

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  • Method for measuring multimedia multicast service quality based on client
  • Method for measuring multimedia multicast service quality based on client
  • Method for measuring multimedia multicast service quality based on client

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[0063] The solution of the present invention includes closed system time synchronization, message sampling and time stamp addition of the multicast source end system, dynamic measurement point selection, measurement of multicast service quality parameters at a single measurement point, and MCS's multicast service for the local access network. Quality assessment and control. System deployment environment such as figure 1 As shown, the overall logical structure of the system is as follows figure 2 shown. The specific implementation is as follows:

[0064] 1. System closed time synchronization

[0065] Time synchronization is required between the multicast source and the measurement point. The system adopts a closed layered time synchronization mechanism. The multicast source and the measurement point will periodically use the NTP protocol to synchronize the internal time of the system with the local MCS. All MCSs in the system will Synchronize with the standard time through...

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Abstract

The invention discloses a method for measuring the multimedia multicast service quality based on a client under a large-scale IPv6 network environment. The method provides a whole set of schemes to solve the multimedia multicast service quality measurement, comprising the time synchronization of a closed system, the message sampling and time stamp adding of a multicast source end system, the selection of a dynamic measurement point, the measurement of multicast service quality parameters of a single measurement point, and the assessment and control of a multicast control server to the access network multimedia multicast service quality. The method not only can overcome the invasion and non-reliability of active measurement as well as the locality of passive measurement, but also can timelyand truly measure the multimedia multicast service quality, and has the advantages of convenient deployment, good expansibility and the like.

Description

technical field [0001] The invention relates to a method for measuring multimedia multicast service quality in a large-scale IPv6 (Internet Protocol Version 6) network environment, and belongs to the technical field of computer network technology applications. Background technique [0002] Multicast (Multicast) is a group communication model for multi-point transmission and multi-party cooperative applications. It has high data transmission efficiency. Multicast technology is an important supporting technology for next-generation Internet (Internet) applications. Because multicast can effectively save bandwidth and reduce network load, it is widely used in the growing multimedia services. [0003] Due to the real-time nature of multimedia data, the multimedia multicast service puts forward higher requirements on the service quality of the network. In order to ensure the service quality of the multimedia multicast service, it is necessary to measure the current multimedia mu...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/06
Inventor 曹争陆正军殷鹏鹏
Owner SOUTHEAST UNIV
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