在802.11标准无线网络中实现快速漫游切换的方法

Method for realizing fast roaming switch in wireless network in line with 802.11 standard

Abstract

The invention relates to a method for realizing fast roaming switch in a wireless network in line with 802.11 standard. The wireless network in line with 802.11 standard comprises more than two wireless access points, a wireless controller, a wireless client and a 802.11X authentication server. In the method for realizing the fast roaming switch in the wireless network in line with the 802.11 standard, when the 802.11X authentication server sends unicast master keys to a first wireless access point and a wireless client by the wireless controller, the wireless controller intercepts and stores the unicast master keys and then sends the unicast master keys to the rest of wireless access points for storage, thus the wireless client only needs to carry out the whole 802.11X authentication for once in the roaming process; and when the wireless client is switched to the other wireless access point, four-time handshakes are only needed to finish the switch among the wireless access points, thereby reducing pressure of the authentication server and realizing fast switch.
本发明涉及一种在802.11标准无线网络中实现快速漫游切换的方法,所述的802.11标准无线网络包括两个以上的无线访问点、无线控制器、无线客户端以及802.1X认证服务器。采用了该发明的在802.11标准无线网络中实现快速漫游切换的方法,在802.1X认证服务器通过无线控制器向第一个无线访问点和无线客户端下发单播主密钥时,无线控制器截取并存储所述的单播主密钥,再由无线控制器下发给其余各个无线访问点,并储存,从而使无线客户端在漫游过程中,只需要进行一次完整的802.1X身份验证,当其切换至其它的无线访问点时,仅需进行四次握手即可完成各无线访问点间的切换,从而减轻认证服务器的压力,实现快速切换。

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-105050146-ANovember 11, 2015上海精吉通讯技术有限公司Roaming switching method