Multihoming-based Wireless Network Controllers Using Network Processors

• Main Authors: Chien-Yi Li, 李建毅
• Other Authors: 周立德
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/19661169970557231005

碩士 === 國立中央大學 === 資訊工程研究所 === 95 === In recent years, with the flourishing development of the wireless network, Wi-Fi is deployed and built around us, but facing the wireless network expanding day by day, there are some problem making network manager quite troublesome. For example, how to effectively and consistently manage a large amount of APs under a wireless network has already become quite an important topic. Using wireless signal between APs to make another transmit path is the focal point of this paper in design. NP is programmable and another choice to replace ASIC which processes the packet of user plane gradually. It utilizes coprocessors to help dealing with the original packet processed by a general-purpose processor, so NP can increase the scalability and efficiency at the same time. In this paper, we propose a design and implementation for multihoming-based wireless network controllers, use the wired and wireless interface of NP to manage and control AP , and put network switch agent for switch over to the better network in AP. This system also supports the webpage management interface to show the network topology immediately, and NP efficiency measurement immediately on the webpage through measurement model. When the system find some AP’s wired interface unable to make a connection, can connect to this AP by NP’s wireless network card or other AP’s wireless link to send packet to this AP, and store this network trouble information in the database, so that network manager looks over the historical record or make relevant newspapers afterwards, raising the efficiency of fault management of the network.