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    • 3. 发明申请
    • HIERARCHICAL CONTROL SIGNALING FOR MOBILE CLIENTS IN DISTRIBUTED WIRELESS CONTROLLER SYSTEM
    • 分布式无线控制器系统中移动客户的分层控制信令
    • WO2011140007A1
    • 2011-11-10
    • PCT/US2011/034883
    • 2011-05-03
    • CISCO TECHNOLOGY, INC.JAIN, SudhirCALHOUN, PatriceCHOUDHURY, AbhijitSURI, RohitLOI, LyGOPALASETTY, BhanuYADAV, NavindraERTEMALP, Fusun
    • JAIN, SudhirCALHOUN, PatriceCHOUDHURY, AbhijitSURI, RohitLOI, LyGOPALASETTY, BhanuYADAV, NavindraERTEMALP, Fusun
    • H04W8/08
    • H04W8/085H04W8/26
    • A system and method are provided for a hierarchical distributed control architecture to support roaming of wireless client devices. A plurality of access switches are provided and configured to serve one or more Internet Protocol (IP) subnets that comprises a plurality of IP addresses. The plurality of access switches are arranged in switch peer groups such that each access switch within a given switch peer group is configured to store information about other access switches in that switch peer group and about locations of wireless client devices that are associated with any wireless access point on any access switch in the switch peer group. The plurality of access switches are further grouped into a corresponding one of a plurality of mobility sub-domains each comprising a plurality of switch peer groups. A plurality of controller devices are provided, each configured to control access switches in a corresponding mobility sub-domain. Each controller device stores information about the plurality of access switches within its mobility sub-domain and about locations of wireless client devices at access switches in its mobility sub-domain. A central controller device is provided and configured to communicate with the plurality of controller devices for the respective mobility sub-domains. The central controller device is configured to store information about locations of wireless client devices in the mobility sub-domains.
    • 提供了一种用于分级分布式控制架构以支持无线客户端设备的漫游的系统和方法。 多个接入交换机被提供和配置为服务于包括多个IP地址的一个或多个因特网协议(IP)子网。 多个接入交换机被布置在交换对等体组中,使得给定交换机对等体组内的每个接入交换机被配置为存储关于该交换对等体组中的其他接入交换机的信息以及与任何无线接入相关联的无线客户端设备的位置 指向交换机对等体组中的任何接入交换机。 多个接入交换机被进一步分组成多个移动性子域中的每个包括多个交换对等体组的对应的一个。 提供了多个控制器设备,每个控制器设备被配置为控制相应的移动性子域中的接入交换机。 每个控制器设备将关于多个接入交换机的信息存储在其移动性子域内以及关于移动性子域中的接入交换机处的无线客户端设备的位置。 中央控制器设备被提供和配置成与用于各个移动性子域的多个控制器设备进行通信。 中央控制器设备被配置为存储关于移动性子域中的无线客户端设备的位置的信息。