End-to-end quality of service guarantee method and device for network nodes based on neighborhood awareness

Abstract

The invention relates to the technical field of the communication, and discloses a network node end-to-end quality of service guaranteeing method based on neighborhood sensing. The method comprises the following steps: establishing a MOS value model of the quality of service; performing neighborhood propagation on the MOS value of router quality of service; transmitting the MOS value, which needs to guarantee, of the lowest quality of service in a switching network; dynamically selecting the local quality of service according to the MOS value of the router quality of service; and processing the information of a destination router. The invention further discloses a network node end-to-end quality of service guaranteeing device based on neighborhood sensing. The device comprises a MOS value model establishing module, a MOS value neighborhood propagating module, a MOS value with the lowest quality of service transmitting module, a local quality of service selection module and a destination router information processing module. By establishing the MOS value model of the quality of service, a dynamic distribution strategy of a network node resource on a data transmission is generated.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for guaranteeing end-to-end service quality of network nodes based on neighborhood awareness. Background technique [0002] Quality of Service QoS (Quality of Service) is an important parameter to measure computer network performance, including delay, packet loss rate, etc., and has a very important impact on upper-layer applications. At present, ensuring the end-to-end QoS of all users has always been an important challenge for telecom operators. Ensuring the end-to-end QoS of all data services within a reasonable range at the overall network level has become a research hotspot in computer networks. [0003] The data packet forwarding priority policy of switching devices such as routers in traditional networks is fixed, and priority policies cannot be customized for specific services. For example, the network manager sets a fixed QoS policy fo...

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Problems solved by technology

[0004] The forwarding strategy of a router in a traditional network considers the current forwarding node and cannot perceive the transmission status of other nodes on the data transmission path; while the service quality of the end-to-end transmission service is based on the total service quality of the end-to-end transmission, and does not completely depend on the transmission process The quality of service of a specific node, so the traditional forwarding strategy cannot optimize the end-to-end transmission quality of service in the case of limited resources

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