Research And Development Of Policy-based Network Admission Control

Wireless LAN technology is becoming one of the hottest issues in the computer networking technology. Admission control and QoS supported in Wireless LAN are important research topics in this area. First, this paper presents a research in a Framework of Policy-based Admission Control and a corresponding scheme that used in IEEE802.11 wireless LAN. In this scheme, the whole work is divided into several modules. SNMP, carrying message between Policy Decision Point (PDP) and Policy Enforcement Point (PEP), acts as a signaling protocol. With the purpose of having knowledge of the admission control ability in wireless LAN, we analyze the access control mechanism of IEEE802.11MAC and some QoS technologies under IEEE802.11 Std. Finally, a detailed analysis and successful solution of SNMP between PDP server and wireless access point (AP) are proposed.