Design And Implementation Of QoS Subsystem In WLAN Controller

Basically, the current network is wired and wireless mixed,applications usually transmit by wireless access,cable backbone network transmission,wireless access.As in and out site for quality of service (QoS), WLAN controller palys a crucial role for quality assurance of end-to-end multimedia services in wireless LAN.This article firstly analyzes QoS differentiated service system and the WLAN controller with thin AP architecture in the Centralized wireless LAN, and secondly discusses in detail for QoS Packet processing in WLAN controller. On this basis, this paper has proposed two types of programs to achieve QoS flow classification; proposed the program of CAR technology+flow classification to achieve QoS traffic regulation; proposed strategy ACL and priority mapping programs to achieve two-way QoS mark and re-mark; adopted three scheduling algorithm for achieving QoS Congestion management; adopted Token Bucket technology to achieve QoS traffic shaping; and adopted the program of strategy issued to achieve redirection, mirroring QoS function for wireless traffic. Finally, function tests have been done for the realization of the QoS in this article.The results proved that the QoS module that realized in this paper has a good stability and practicality, some ways are in diverse,and some programs are more optimal for implementation of QoS function. At present, the module has passed inspection, successfully introduced to the market and achieved good economic benefits...