The Research Of QOS Function And Effect In IP Network

Nowadays TCP/IP protocol has become the most widely used protocol onthe Internet, and the IP network has become the Internet's leading network construction form. The simple and clear physical structure, high bandwidth, and easy to configure have made IP network being widely used. However, the IP protocol is a "best effort" protocol. It can not offer a strict quality assurance. Compared to circuit-switch network, IP network has weaker flow controling and congestion management ability.QOS which helps to improve the flow control, congestion management has been applied more and more common in IP networks. The author of this article through the use of high-end routers NE40E Huawei Company, the use of QOS on the link congestion control mechanism of different scheduling of the link traffic has done a comparison, displayed in the IP network QOS deployment after flow, the role of congestion. And congestion in certain specific circumstances, the most important how to ensure that business can complete the adoption, rather than less important business resources to give priority to meet the needs of key customers, has done a study on this issue, results show that must be used queue PQ strict and detailed planning of business resources, can we truly carry out the congestion, it is important to the client's business can be fully protected.At the same time, this article also do a QOS development of that in the future in the fixed network, QOS is not classified in the core equipment is disposed of in an access layer device can be classified and forwarded by priority, from the network edge business began to distinguish between the importance of reducing stress at the core network.