基于城域组网的运营级WLAN组网技术

WLAN作为有线宽带的延伸，也是无线宽带的重要组成部分。近年来，各地政府纷纷提出建设“无线城市”，将其作为城市第5 项公共基础设施；中国电信股份有限公司也提出了将WLAN 建设成为第 4 张基础网络，这些因素促进了WLAN的大规模建设和发展。分析了基于城域组网的运营级WLAN的建设目标和组网架构，提出了运营级WLAN的组网技术以及WLAN的安全策略部署建议。

Technology of WLAN in Operation Level Based on Metropolitan Area Network

As an extension of the cable broadband network，WLAN is also an important part of the wireless broadband network.In recent years，local governments have put forward the construction of “wireless city”as the fifth city public infrastructure，China Telecom Co.Ltd.also put forward the WLAN construction as the forth basic network.These factors promoted the large-scale construction and development of WLAN.The construction goal and the network architecture of WLAN based on metropolitan area network were analyzed.The networking technologies and the security policy deployment of WLAN were proposed.