[go: up one dir, main page]

WO2011140879A1 - 无线局域网中业务报文的处理方法、设备及系统 - Google Patents

无线局域网中业务报文的处理方法、设备及系统 Download PDF

Info

Publication number
WO2011140879A1
WO2011140879A1 PCT/CN2011/072757 CN2011072757W WO2011140879A1 WO 2011140879 A1 WO2011140879 A1 WO 2011140879A1 CN 2011072757 W CN2011072757 W CN 2011072757W WO 2011140879 A1 WO2011140879 A1 WO 2011140879A1
Authority
WO
WIPO (PCT)
Prior art keywords
capwap
service packet
address
service
packet
Prior art date
Application number
PCT/CN2011/072757
Other languages
English (en)
French (fr)
Inventor
赵望生
颜林志
李思行
薛保华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2011140879A1 publication Critical patent/WO2011140879A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0247Traffic management, e.g. flow control or congestion control based on conditions of the access network or the infrastructure network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/12Access point controller devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/12Interfaces between hierarchically different network devices between access points and access point controllers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/22Interfaces between hierarchically similar devices between access point controllers

Definitions

  • the embodiments of the present invention relate to a communication technology, and in particular, to a method, a device, and a system for processing a service packet in a wireless local area network (WLAN).
  • WLAN wireless local area network
  • a wireless local area network is mainly composed of an Access Controller (AC) and an Access Point (AP).
  • An AC can manage multiple APs, that is, a Control and Provisioning of Wireless Access Points (CAPWAP) tunnel can be established with multiple APs.
  • CAPWAP Wireless Access Points
  • the tunnel resources of a single AC are insufficient.
  • a single AC cannot manage them.
  • the services of APs in the WLAN cannot be performed normally.
  • An embodiment of the present invention provides a method for processing a service packet in a wireless local area network, where the WLAN includes an access point AP, a first access controller AC, and a second AC, where the first AC and the AP are respectively The second AC is connected, the method includes: receiving a control of a wireless access point from the AP, and configuring a CAPWAP service packet; acquiring the identification information from the CAPWAP service packet according to the preset distribution policy, according to the identifier Corresponding to the AC, the AC corresponding to the identifier information is obtained, and the CAPWAP service packet is sent to the corresponding AC, so that the corresponding AC decapsulates the CAPWAP service packet.
  • the embodiment of the invention further provides a processing device for processing a service packet in a wireless local area network
  • the WLAN further includes an access point AP and at least one access controller AC, and the processing device is respectively connected to the AP and the at least one AC, and the processing device includes:
  • a packet obtaining module configured to acquire a control of a wireless access point from the AP and configure a CAPWAP service message
  • the information obtaining module is configured to obtain the identification information from the CAPWAP service packet according to the preset distribution policy, and obtain the AC corresponding to the identifier information according to the correspondence between the identifier information and the AC;
  • a packet processing module configured to send the CAPWAP service packet to the corresponding AC, so that the corresponding AC decapsulates the CAPWAP service packet.
  • the embodiment of the present invention further provides a processing system for a service packet in a wireless local area network, including an access point AP, a first access controller AC, and a second AC, where the first AC and the AP and the The second AC is connected, wherein
  • the first AC is configured to receive the control of the wireless access point from the AP and configure the CAPWAP service packet.
  • the identifier information is obtained from the CAPWAP service packet according to the preset distribution policy, and the identifier information is obtained according to the identifier information.
  • the AC corresponding to the identifier information is sent, and the CAPWAP service packet is sent to the corresponding AC, so that the corresponding AC decapsulates the CAPWAP service packet.
  • the embodiment of the present invention can obtain the identification information from the obtained CAPWAP service packet according to the pre-set distribution policy, and then obtain the AC corresponding to the identifier information according to the correspondence between the identifier information and the AC, so that the AC can be redirected.
  • the CAPWAP service packet is sent to the corresponding AC, so that the CAPWAP service packet of the corresponding AC is decapsulated, and the APs in the WLAN can be managed by multiple ACs, thereby ensuring normal AP services in the WLAN. get on.
  • FIG. 1 is a network architecture diagram of a wireless local area network in the prior art
  • FIG. 2 is a network architecture diagram of a wireless local area network based on an embodiment of the present invention
  • FIG. 3 is a network architecture diagram of another wireless local area network based on an embodiment of the present invention
  • 4 is a schematic flowchart of a method for processing a service packet in a wireless local area network according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a device for processing a service packet in a wireless local area network according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a system for processing a service packet in a wireless local area network according to an embodiment of the present invention.
  • At least one AP can be connected through a switching device in an AC. As shown in FIG. 1 , these APs can also connect to a Broadband Remote Access Server (BRAS) through a switching device. As the number of APs connected under the AC increases, resulting in a single There is not enough AC tunnel resources, so you need to expand the capacity of the AC.
  • BRAS Broadband Remote Access Server
  • an embodiment of the present invention expands the AC.
  • an AC22 is extended on the basis of the AC20.
  • the AC20 and the AC22 may be two independent devices, or may be in the frame of one device.
  • the two boards can also be two CAPWAP processing units on a single board.
  • a person skilled in the art can know that the APs in FIG. 2 and FIG. 3 can also be directly connected to the AC without using a switching device, where the switching device can be a switching device or a router.
  • FIG. 4 is a schematic flowchart of a method for processing a service packet in a WLAN according to an embodiment of the present invention, which may include the following steps:
  • Step 101 The first AC acquires a CAPWAP service packet from the AP.
  • the first AC may be AC20 in Figure 3, or even a separate device, which may be in the middle of switching device 24 and AC20 (not shown in Figure 3).
  • the device registration corresponding to the Access Control is exemplified by the IP address in the following embodiments.
  • the device corresponding to the IP address here can be a standalone device, such as AC20.
  • the IP addresses registered by each AP are the same, so that each AP registers with the same device.
  • the device corresponding to the IP address for example, the AC 20
  • the CAPWAP tunnel entry corresponding to the AP is configured on the AC
  • the CAPWAP tunnel table is configured on the AC.
  • the entry may include a source MAC address, a destination MAC address, a virtual local area network (VLAN), a source IP address, a destination IP address, a User Datagram Protocol (UDP) source port number, and a UDP destination port.
  • VLAN virtual local area network
  • UDP User Datagram Protocol
  • the AP Since the AP only knows the IP address of a device (such as AC20), you do not need to select the AC to register. You only need to register the device corresponding to the above IP address (such as AC20), which reduces the complexity of the registration operation and improves the registration. s efficiency. Further, the CAPWAP tunnel entry corresponding to each AP can be configured on the AC corresponding to each AP by the device corresponding to the IP address (such as AC20), which reduces the complexity of the management operation.
  • the destination address of the CAPWAP service packet is the IP address of the device that is registered by the AP. Therefore, the destination address in the CAPWAP service packet of each AP is the same, that is, the pre-specified IP address.
  • Step 102 The first AC obtains the identifier information from the CAPWAP service packet according to the preset distribution policy, and learns the AC corresponding to the identifier information according to the correspondence between the identifier information and the AC.
  • the foregoing preset distribution policy may be that the existing field in the CAPWAP service packet is used as the identification information, for example, a combination of one or more of a source port number, a source IP address, a radio frequency MAC address, and wireless specific information. It can also be an extended field in a CAPWAP service message. Save the correspondence between the identification information and the AC locally.
  • the AC corresponding to the identifier information may be included in the following manner according to the correspondence between the identifier information and the AC:
  • the identification information uses the source port number, if there are 4 ACs in the system that can provide monthly services, you can The above four AC sequence numbers are 0 to 4 corresponding to AC20 to AC23 in the figure.
  • After receiving the CAPWAP service packet obtain the source port number included in the packet, and divide the source port number by 4, where the remainder is the AC that needs to process the CAPWAP service packet; or the number below 2000 is 0.
  • the AC is treated by AC20, 2000 ⁇ 2999 is processed by AC numbered 1 or AC21, 3000 ⁇ 3999 is processed by AC number 2, that is, AC22, and 4000 or more is handled by AC, number 3, AC23.
  • the number of the last IP address of the source IP address is divided by 4. The remainder is the AC that needs to process the CAPWAP service packet.
  • the number of the radio frequency MAC address can be divided by 4, and the remainder is the AC that needs to process the CAPWAP service packet.
  • the number of bits of the wireless specific information may be divided by 4, and the remainder is the AC that needs to process the CAPWAP service message.
  • mapping relationship may be configured according to other rules, which is not limited in the embodiment of the present invention.
  • Step 103 The first AC sends the CAPWAP service packet to the corresponding AC, so that the corresponding AC decapsulates the CAPWAP service packet.
  • the AC (second AC) for decapsulating the CAPWAP service packet in this embodiment may be AC22 or the like.
  • the corresponding AC may decapsulate the CAPWAP service packet according to the configured CAPWAP tunnel entry, and the specific decapsulation method is the same as the prior art, and details are not described herein.
  • the CAPWAP service packet may be directly configured according to the configured CAPWAP tunnel entry. Decapsulation, the specific decapsulation method is the same as the prior art, I will not repeat them here.
  • the identifier information may be obtained from the obtained CAPWAP service packet according to the preset distribution policy, and the AC corresponding to the identifier information may be obtained according to the correspondence between the identifier information and the AC, so that the CAPWAP service may be redirected.
  • the packet is sent to the corresponding AC, so that the CAPWAP service packet of the corresponding AC is decapsulated, and the multiple APs can be used to manage the AP in the WLAN, thereby ensuring normal operation of the AP in the WLAN. Since the switching device only needs to forward the CAPWAP service packet to the same device (the first AC), the addition of the AC in the system does not need to increase the configuration information on the switching device, thereby reducing the complexity of the configuration operation.
  • FIG. 5 is a schematic structural diagram of a device for processing a service packet in a wireless local area network according to an embodiment of the present invention.
  • the WLAN of the embodiment may further include an AP and at least one AC, and the processing device may be respectively associated with the AP and the Said at least one AC is connected.
  • the processing device for the service packet in the WLAN of the embodiment may include a packet obtaining module 31, an information learning module 32, and a message processing module 33.
  • the packet obtaining module 31 obtains the CAPWAP service packet from the AP, and the information obtaining module 32 obtains the identifier information from the CAPWAP service packet according to the preset distribution policy, and obtains the corresponding information according to the correspondence between the identifier information and the AC.
  • the function of the first AC in the foregoing embodiment of the present invention can be implemented by the processing device of the service packet in the wireless local area network provided by this embodiment.
  • the packet obtaining module 31 in this embodiment may be further configured to receive from the AP. CAPWAP registration message. Specifically, after receiving the CAPWAP registration message from the AP, the packet obtaining module 31 may obtain the identification information from the CAPWAP registration message according to the preset distribution policy, and obtain the above information according to the correspondence between the identification information and the AC. The AC corresponding to the identifier information is configured to configure the CAPWAP tunnel entry corresponding to the AP on the AC, so that the corresponding AC decapsulates the CAPWAP service packet according to the CAPWAP tunnel entry.
  • the CAPWAP tunnel entry may include a combination of one or more of a source MAC address, a destination MAC address, a VLAN, a source IP address, a destination IP address, a UDP source port number, and a UDP destination port number.
  • the destination address of the CAPWAP service packet and the CAPWAP registration packet are both the IP address or the MAC address of the processing device provided in this embodiment.
  • the AP only knows the IP address or media access control of the processing device provided by this embodiment.
  • the MAC address does not need to be selected by the AC for registration. It only needs to register with the processing device, which reduces the complexity of the registration operation and improves the registration efficiency. Further, the CAPWAP tunnel entry corresponding to each AP can be configured on the AC corresponding to each AP by the packet obtaining module 31 in the processing device, which reduces the complexity of the management operation.
  • the information obtaining module may obtain the identification information from the CAPWAP service packet obtained by the packet obtaining module according to the pre-set distribution policy, and further, according to the correspondence between the identifier information and the AC, the information corresponding to the identifier information may be obtained.
  • the AC so that the packet processing module redirects the CAPWAP service packet to the corresponding AC, so that the corresponding AC CAPWAP service packet is decapsulated, and multiple ACs can be managed on the AP in the WLAN. Therefore, the service of the AP in the wireless local area network is normally performed.
  • FIG. 6 is a schematic structural diagram of a system for processing a service packet in a wireless local area network according to an embodiment of the present invention.
  • the system for processing a service packet in a wireless local area network according to the embodiment includes an AP 41, a first AC 42 and a second AC 43, The first AC 42 is connected to the AP 41 and the second AC 43 respectively, wherein
  • the first AC 42 may be configured to receive the CAPWAP service packet from the AP 41.
  • the identifier information is obtained from the CAPWAP service packet according to a preset distribution policy, and the identifier is obtained according to the correspondence between the identifier information and the AC.
  • the AC corresponding to the information sends the CAPWAP service packet to the corresponding AC, so that the corresponding AC decapsulates the CAPWAP service packet.
  • the function of the first AC in the foregoing embodiment of the present invention may be implemented by the first AC 42 in the processing system of the service packet in the wireless local area network provided by this embodiment.
  • first AC and the second AC described in this embodiment may be two single boards in one device.
  • the first AC may obtain the identifier information from the obtained CAPWAP service packet according to the preset distribution policy, and further obtain the AC corresponding to the identifier information according to the correspondence between the identifier information and the AC, so that Redirecting the CAPWAP service packet to the corresponding AC to decapsulate the CAPWAP service packet of the corresponding AC, and implementing multiple APs to manage the AP in the WLAN, thereby ensuring the AP in the WLAN The business is going on normally.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

无线局域网中业务报文的处理方法、 设备及系统 本申请要求于 2010年 8月 12日提交中国专利局、申请号为 201010253529.6、 发明名称为"无线局域网中业务报文的处理方法、设备及系统 "的中国专利申请的 优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明实施例涉及通信技术, 尤其涉及一种无线局域网 (Wireless Local Area Network, 简称 WLAN ) 中业务报文的处理方法、 设备及系统。
背景技木
无线局域网( Wireless Local Area Network, 简称 WLAN )主要由接入控制 器 ( Access Controller, 简称 AC )和无线接入点 ( Access Point, 简称 AP )组 成。 一个 AC可以管理多个 AP, 也就是说, 可以与多个 AP建立无线接入点的 控制和配置 ( Control And Provisioning of Wireless Access Points , 简称 CAPWAP )隧道。 随着 AP的增加, 单个 AC的隧道资源不够, 单个 AC无法对 其进行管理, 从而使得无线局域网中 AP的业务无法正常进行。
发明内容
本发明实施例提供了一种无线局域网中业务报文的处理方法, 所述 WLAN 包括接入点 AP、 第一接入控制器 AC和第二 AC, 所述第一 AC分别与所述 AP 和所述第二 AC相连, 所述方法包括: 接收来自 AP的无线接入点的控制和配置 CAPWAP业务报文; 根据预先设置的分发策略,从所述 CAPWAP业务报文中获取标识信息,根 据标识信息与 AC的对应关系, 获知与所述标识信息对应的 AC; 向所述对应的 AC发送所述 CAPWAP业务报文, 以使所述对应的 AC对所述 CAPWAP业务报文进行解封装。 本发明实施例还提供了一种无线局域网中业务报文的处理设备, 所述 WLAN还包括接入点 AP以及至少一个接入控制器 AC, 所述处理设备分别与所 述 AP和所述至少一个 AC相连, 所述处理设备包括:
报文获取模块,用于获取来自 AP的无线接入点的控制和配置 CAPWAP业 务报文;
信息获知模块, 用于根据预先设置的分发策略,从所述 CAPWAP业务报文 中获取标识信息,才艮据标识信息与 AC的对应关系获,获知与所述标识信息对应 的 AC;
报文处理模块, 用于向所述对应的 AC发送所述 CAPWAP业务报文, 以使所 述对应的 AC对所述 CAPWAP业务报文进行解封装。
本发明实施例还提供了一种无线局域网中业务报文的处理系统, 包括接入 点 AP、第一接入控制器 AC和第二 AC,所述第一 AC分别与所述 AP和所述第 二 AC相连, 其中,
所述第一 AC, 用于接收来自 AP的无线接入点的控制和配置 CAPWAP业务 报文; 根据预先设置的分发策略, 从所述 CAPWAP业务报文中获取标识信息, 才艮据标识信息与 AC的对应关系, 获知与所述标识信息对应的 AC, 向所述对应的 AC发送所述 CAPWAP业务报文, 以使所述对应的 AC对所述 CAPWAP业务报文 进行解封装。
本发明实施例可以根据预先设置的分发策略,从获取的 CAPWAP业务报文 中获取标识信息,进而可以才艮据标识信息与 AC的对应关系,获知与上述标识信 息对应的 AC, 从而可以重定向上述 CAPWAP业务报文到上述对应的 AC, 以 使上述对应的 AC上述 CAPWAP业务报文进行解封装, 能够实现多个 AC对无 线局域网中的 AP进行管理, 从而保证了无线局域网中 AP的业务正常进行。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施 例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描 述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出 创造性劳动的前提下, 还可以根据这些附图获得其他的附图。 图 1为现有技术中无线局域网的网络架构图; 图 2为本发明一个实施例基于的一个无线局域网的网络架构图; 图 3为本发明一个实施例基于的另一个无线局域网的网络架构图; 图 4为本发明一个实施例提供的无线局域网中业务报文的处理方法的流程 示意图; 图 5为本发明一个实施例提供的无线局域网中业务报文的处理设备的结构 示意图;
图 6为本发明一个实施例提供的无线局域网中业务报文的处理系统的结构 示意图。
具体实施例 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发明 实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中 的实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其 他实施例, 都属于本发明保护的范围。 现有技术中,一个 AC下可以通过交换设备连接至少一个 AP,如图 1所示, 这些 AP 还可以通过交换设备连接宽带远程接入服务器 (Broadband Remote Access Server, 简称 BRAS ) 。 随着 AC下连接的 AP的数量的增加, 导致单 个 AC隧道资源的不够, 这样就需要对 AC的容量进行扩展。 鉴于此, 本发明一 个实施例对 AC进行扩展, 如图 2所示, 在 AC20的基础上扩展一个 AC22, 这 里的 AC20和 AC22可以是两个独立的设备, 也可以是一个设备的机框里的两 块单板, 还可以是一块单板上的两个 CAPWAP处理单元等。 当然了, 也可以在 AC20处连接多个 AC, 组成 AC阵列, 如图 3所示。 本领域普通技术人员可以 知悉, 图 2和图 3中的 AP也可以直接连接到 AC上, 而不需要通过交换设备, 这里的交换设备可以是交换设备或路由器等。
相应的, 本发明一个实施例相应地提供一种无线局域网中业务报文的处理 方法, 为使得本实施例提供的方法更加清楚, 下面将以图 3 的架构作为举例。 图 4为本发明一个实施例提供的无线局域网中业务报文的处理方法的流程示意 图, 可以包括以下步骤:
步骤 101、 第一 AC获取来自 AP的 CAPWAP业务报文;
第一 AC可以是图 3中的 AC20, 甚至还可以是一个单独的设备, 该设备可 以处于交换设备 24和 AC20中间 (图 3中未示出) 。
本步骤之前,还包括: AP向网络预先指定的 IP地址或媒体访问控制( Media
Access Control, 简称 MAC )地址所对应的设备注册, 以下实施例中将以 IP地 址作为举例。 这里的 IP地址对应的设备可以是一个独立的设备, 如 AC20等。 本实施例中, 每个 AP注册的 IP地址都相同, 这样, 每个 AP都向同一个设备 注册。 具体地, 上述 IP地址对应的设备(如 AC20 )获取来自 AP的 CAPWAP 注册报文之后,根据预先设置的分发策略,从上述 CAPWAP注册报文中获取标 识信息, 才艮据标识信息与 AC的对应关系, 获知与上述标识信息对应的 AC, 在 上述 AC上配置上述 AP对应的 CAPWAP隧道表项, 其中, CAPWAP隧道表 项可以包括源 MAC地址、 目的 MAC地址、 虚拟局域网 (Virtual Local Area Network, 简称 VLAN )、 源 IP 地址、 目的 IP 地址、 用户数据报协议(User Datagram Protocol, 简称 UDP ) 源端口号和 UDP目的端口号中的一种或者多 种的组合。
由于 AP仅获知了一个设备(如 AC20 )的 IP地址,无需选择 AC进行注册, 只需要向上述 IP地址对应的设备(如 AC20 )进行注册即可, 降低了注册操作 的复杂性, 提高了注册的效率。 进一步地, 由于每一个 AP对应的 CAPWAP隧 道表项都可以由上述 IP地址对应的设备(如 AC20 ) 配置在每一个 AP对应的 AC上, 降低了管理操作的复杂性。
本步骤中, CAPWAP业务报文的目的地址就是 AP注册的设备的 IP地址, 因此, 每一个 AP的 CAPWAP业务报文中的目的地址都相同, 即为预先指定的 IP地址。
步骤 102、 第一 AC根据预先设置的分发策略, 从上述 CAPWAP业务报文 中获取标识信息,才艮据标识信息与 AC的对应关系,获知与上述标识信息对应的 AC;
其中,上述预先设置的分发策略可以是将 CAPWAP业务报文中已有的字段 作为标识信息, 例如源端口号、 源 IP地址、 射频 MAC地址和无线特定信息中 的一个或多个的组合等,还可以是 CAPWAP业务报文中扩展的字段。将标识信 息与 AC的对应关系保存在本地。
具体地, 才艮据标识信息与 AC的对应关系, 获知与上述标识信息对应的 AC 可以包括但不限于以下方式:
当标识信息采用源端口号时, 若系统中有 4个 AC可以提供月良务, 可以将 上述 4个 AC顺序编号为 0~4对应图中的 AC20~AC23。在收到 CAPWAP业务 报文后, 获取接收该报文中包含的源端口号, 将源端口号除以 4, 余数就是需要 处理该 CAPWAP业务报文的 AC; 或者规定 2000以下的由编号为 0的 AC即 AC20处理, 2000 ~ 2999由编号为 1 的 AC即 AC21处理, 3000 ~ 3999由编 号为 2的 AC即 AC22处理, 4000以上由编号为 3的 AC即 AC23处理。
当标识信息采用源 IP地址时, 可以是将源 IP地址末字节除以 4, 余数就是 需要处理该 CAPWAP业务报文的 AC。
当标识信息采用射频 MAC地址时, 可以是将射频 MAC地址的某几位除以 4, 余数就是需要处理该 CAPWAP业务报文的 AC。
当标识信息采用无线特定信息时, 可以是将无线特定信息的某几位除以 4, 余数就是需要处理该 CAPWAP业务报文的 AC。
需要说明的是, 本实施例还可以根据其它规则构造映射关系, 本发明实施 例不做限制。
步骤 103、 第一 AC向上述对应的 AC发送上述 CAPWAP业务报文, 以使 上述对应的 AC对上述 CAPWAP业务报文进行解封装。
本实施例中对 CAPWAP业务报文进行解封装的 AC(第二 AC )可以是 AC22 等。 具体地, 上述对应的 AC可以根据配置的上述 CAPWAP隧道表项, 对上述 CAPWAP业务报文进行解封装, 具体的解封装的方法与现有技术一样, 此处不 再赘述。
需要说明的是: 本实施例中, 若上述步骤 102中, 第一 AC获知与上述标 识信息对应的 AC为第一 AC,则可以直接根据配置的上述 CAPWAP隧道表项, 对上述 CAPWAP业务报文进行解封装, 具体的解封装的方法与现有技术一样, 此处不再赘述。
本实施例可以根据预先设置的分发策略,从获取的 CAPWAP业务报文中获 取标识信息,进而可以根据标识信息与 AC的对应关系,获知与上述标识信息对 应的 AC, 从而可以重定向上述 CAPWAP业务报文到上述对应的 AC, 以使上 述对应的 AC上述 CAPWAP业务报文进行解封装, 能够实现多个 AC对无线局 域网中的 AP进行管理, 从而保证了无线局域网中 AP的业务正常进行。 由于交 换设备只需要向同一设备(第一 AC )转发 CAPWAP业务报文, 因此系统中增 加 AC无需增加交换设备上的配置信息, 从而降低了配置操作的复杂性。
图 5为本发明一个实施例提供的无线局域网中业务报文的处理设备的结构 示意图, 本实施例的无线局域网还可以包括 AP以及至少一个 AC, 所述处理设 备可以分别与所述 AP和所述至少一个 AC相连。如图 5所示, 本实施例的无线 局域网中业务报文的处理设备可以包括报文获取模块 31、 信息获知模块 32和 报文处理模块 33。
其中, 报文获取模块 31获取来自 AP的 CAPWAP业务报文, 信息获知模 块 32根据预先设置的分发策略, 从所述 CAPWAP业务报文中获取标识信息, 根据标识信息与 AC的对应关系获, 获知与所述标识信息对应的 AC, 报文处理 模块 33向信息获知模块 32获知的所述对应的 AC发送报文获取模块 31获取的 所述 CAPWAP业务报文, 以使信息获知模块 32获知的所述对应的 AC对所述 CAPWAP业务报文进行解封装。
上述本发明一个实施例中第一 AC 的功能均可以由本实施例提供的无线局 域网中业务报文的处理设备实现。
进一步地, 本实施例中的报文获取模块 31还可以进一步用于接收来自 AP 的 CAPWAP注册报文。具体地,报文获取模块 31接收到来自 AP的 CAPWAP 注册报文之后, 可以根据预先设置的分发策略,从上述 CAPWAP注册报文中获 取标识信息,根据标识信息与 AC的对应关系,获知与上述标识信息对应的 AC, 在上述 AC上配置上述 AP对应的 CAPWAP隧道表项, 以使对应的 AC根据上 述 CAPWAP隧道表项对所述 CAPWAP业务报文进行解封装。其中, CAPWAP 隧道表项可以包括源 MAC地址、 目的 MAC地址、 VLAN、 源 IP地址、 目的 IP 地址、 UDP源端口号和 UDP目的端口号中的一种或者多种的组合。
本实施例中, 所述 CAPWAP业务报文和所述 CAPWAP注册报文的目的地 址均为本实施例提供的所述处理设备的 IP地址或 MAC地址。
由于 AP仅获知了本实施例提供的所述处理设备的 IP地址或媒体访问控制
MAC地址, 无需选择 AC进行注册, 只需要向所述处理设备进行注册即可, 降 低了注册操作的复杂性, 提高了注册的效率。 进一步地, 由于每一个 AP对应的 CAPWAP隧道表项都可以由上述处理设备中的报文获取模块 31 配置在每一个 AP对应的 AC上, 降低了管理操作的复杂性。
本实施例中, 信息获知模块可以根据预先设置的分发策略, 从报文获取模 块获取的 CAPWAP业务报文中获取标识信息,进而可以根据标识信息与 AC的 对应关系, 获知与上述标识信息对应的 AC, 从而可以使得报文处理模块重定向 上述 CAPWAP业务报文到上述对应的 AC,以使上述对应的 AC上述 CAPWAP 业务报文进行解封装, 能够实现多个 AC对无线局域网中的 AP进行管理, 从而 保证了无线局域网中 AP的业务正常进行。 由于交换设备只需要向同一设备(第 一 AC )转发 CAPWAP业务报文, 因此系统中增加 AC无需增加交换设备上的 配置信息, 从而降低了配置操作的复杂性。 图 6为本发明一个实施例提供的无线局域网中业务报文的处理系统的结构 示意图,本实施例的无线局域网中业务报文的处理系统包括 AP 41、第一 AC 42 和第二 AC 43, 第一 AC 42分别与 AP 41和第二 AC 43相连, 其中,
第一 AC 42可以用于接收来自 AP 41的 CAPWAP业务报文; 根据预先设 置的分发策略, 从所述 CAPWAP 业务报文中获取标识信息, 根据标识信息与 AC的对应关系, 获知与所述标识信息对应的 AC, 向所述对应的 AC发送所述 CAPWAP业务报文, 以使所述对应的 AC对所述 CAPWAP业务报文进行解封 装。
上述本发明一个实施例中第一 AC 的功能均可以由本实施例提供的无线局 域网中业务报文的处理系统中的第一 AC 42实现。
需要说明的是:本实施例中所述的第一 AC和所述的第二 AC可以为一个设 备中的两块单板。
本实施例中, 第一 AC可以根据预先设置的分发策略, 从获取的 CAPWAP 业务报文中获取标识信息,进而可以根据标识信息与 AC的对应关系,获知与上 述标识信息对应的 AC, 从而可以重定向上述 CAPWAP业务报文到上述对应的 AC, 以使上述对应的 AC上述 CAPWAP业务报文进行解封装, 能够实现多个 AC对无线局域网中的 AP进行管理, 从而保证了无线局域网中 AP的业务正常 进行。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤可 以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读取存 储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储 介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。 最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对其限 制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通技术人员 应当理解: 其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其 中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案的 本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求书
1、一种无线局域网 WLAN中业务报文的处理方法,其特征在于,所述 WLAN 包括接入点 AP、 第一接入控制器 AC和第二 AC, 所述第一 AC分别与所述 AP 和所述第二 AC相连, 所述方法包括:
接收来自 AP的无线接入点的控制和配置 CAPWAP业务报文;
根据预先设置的分发策略,从所述 CAPWAP业务报文中获取标识信息,根 据标识信息与 AC的对应关系, 获知与所述标识信息对应的 AC;
向所述对应的 AC发送所述 CAPWAP业务报文, 以使所述对应的 AC对所 述 CAPWAP业务报文进行解封装。
2、 根据权利要求 1所述的方法, 其特征在于, 所述预先设置的分发策略包 括: 将源端口号、 源 IP地址、 射频媒体访问控制 MAC地址或无线特定信息中 的一种或者的组合作为标识信息。
3、根据权利要求 1所述的方法,其特征在于,所述接收来自 AP的 CAPWAP 业务报文之前还包括:
接收来自所述 AP的 CAPWAP注册报文。
4、 根据权利要求 3所述的方法, 其特征在于, 所述对应的 AC 上配置有 CAPWAP隧道表项, 所述 CAPWAP隧道表项包括: 源 MAC地址、 目的 MAC 地址、 虚拟局域网 VLAN、 源 IP地址、 目的 IP地址、 用户数据报协议 UDP源 端口号和 UDP目的端口号中的一种或者多种的组合;
所述对应的 AC对所述 CAPWAP业务报文进行解封装具体包括: 所述对应的 AC根据所述 CAPWAP隧道表项, 对所述 CAPWAP业务报文 进行解封装。
5、 根据权利要求 1~4 任一权利要求所述的方法, 其特征在于, 所述 CAPWAP业务 文的目的地址为所述第一 AC的 IP地址或者 MAC地址。
6、 根据权利要求 3或 4所述的方法, 其特征在于, 所述 CAPWAP注册报 文的目的地址为所述第一 AC的 IP地址或者 MAC地址。
7、一种无线局域网 WLAN中业务报文的处理设备,其特征在于,所述 WLAN 还包括接入点 AP 以及至少一个接入控制器 AC, 所述处理设备分别与所述 AP 和所述至少一个 AC相连, 所述处理设备包括:
报文获取模块,用于获取来自 AP的无线接入点的控制和配置 CAPWAP业 务报文;
信息获知模块, 用于根据预先设置的分发策略,从所述 CAPWAP业务报文 中获取标识信息,才艮据标识信息与 AC的对应关系获,获知与所述标识信息对应 的 AC;
报文处理模块, 用于向所述对应的 AC发送所述 CAPWAP业务报文, 以使 所述对应的 AC对所述 CAPWAP业务报文进行解封装。
8、 根据权利要求 7所述的设备, 其特征在于, 所述报文获取模块还用于接 收来自 AP的 CAPWAP注册报文, 所述 CAPWAP注册报文的目的地址为所述 处理设备的 IP地址或媒体访问控制 MAC地址。
9、 根据权利要求 7或 8所述的设备, 其特征在于, 所述 CAPWAP业务报 文的目的地址为所述处理设备的 IP地址或媒体访问控制 MAC地址。
10、 一种无线局域网 WLAN中业务报文的处理系统, 其特征在于, 包括接 入点 AP、第一接入控制器 AC和第二 AC,所述第一 AC分别与所述 AP和所述 第二 AC相连, 其中, 所述第一 AC, 用于接收来自 AP的无线接入点的控制和配置 CAPWAP业 务报文;根据预先设置的分发策略,从所述 CAPWAP业务报文中获取标识信息, 才艮据标识信息与 AC的对应关系, 获知与所述标识信息对应的 AC, 向所述对应 的 AC发送所述 CAPWAP业务报文, 以使所述对应的 AC对所述 CAPWAP业 务报文进行解封装。
11、 根据权利要求 10所述的系统, 其特征在于, 所述第一 AC和所述第二 AC为一个设备中的两块单板。
PCT/CN2011/072757 2010-08-12 2011-04-14 无线局域网中业务报文的处理方法、设备及系统 WO2011140879A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010253529.6 2010-08-12
CN201010253529.6A CN102143045B (zh) 2010-08-12 2010-08-12 无线局域网中业务报文的处理方法、设备及系统

Publications (1)

Publication Number Publication Date
WO2011140879A1 true WO2011140879A1 (zh) 2011-11-17

Family

ID=44410284

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/072757 WO2011140879A1 (zh) 2010-08-12 2011-04-14 无线局域网中业务报文的处理方法、设备及系统

Country Status (2)

Country Link
CN (1) CN102143045B (zh)
WO (1) WO2011140879A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104812021A (zh) * 2015-04-01 2015-07-29 杭州华三通信技术有限公司 一种ap接入ac的方法及装置
CN113518383A (zh) * 2021-06-23 2021-10-19 杭州萤石软件有限公司 网络管理方法、装置、系统、设备及计算机可读存储介质

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281594B (zh) * 2011-09-06 2014-06-11 华为技术有限公司 一种报文转发方法及无线访问节点、系统
CN103079229B (zh) * 2012-12-28 2015-07-15 上海寰创通信科技股份有限公司 接入控制器广播定向发送的方法
CN104185192B (zh) * 2014-08-12 2017-11-03 福建星网锐捷网络有限公司 一种管理设备的访问方法及相关设备
CN104113879B (zh) * 2014-08-13 2018-03-06 成都西加云杉科技有限公司 部署有云AC的WiFi通信系统和通信方法
CN105848168B (zh) * 2015-01-16 2019-08-02 新华三技术有限公司 一种管理无线接入点ap的方法及装置
CN106559832B (zh) * 2015-09-24 2020-03-20 中国移动通信集团公司 一种数据传输方法及控制管理器
CN106331175B (zh) * 2016-10-27 2019-12-27 苏州云融信息技术有限公司 一种面向云ap的多控制代理统一管理系统和方法
CN114158036B (zh) * 2021-12-06 2024-01-23 成都飞鱼星科技股份有限公司 一种配置管理ap的方法、设备、系统及介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1913475A (zh) * 2006-09-14 2007-02-14 杭州华为三康技术有限公司 一种扩展802.11无线局域网的方法及系统
WO2008034357A1 (en) * 2006-09-20 2008-03-27 Huawei Technologies Co., Ltd. Method and system for capwap intradomain authentication using 802.11r
CN101159646A (zh) * 2007-11-23 2008-04-09 杭州华三通信技术有限公司 一种ap的注册方法及设备
CN101471777A (zh) * 2007-12-29 2009-07-01 中国科学院计算技术研究所 一种基于域名的跨域接入控制系统及方法
CN101610533A (zh) * 2009-07-13 2009-12-23 杭州华三通信技术有限公司 一种实现访问控制器备份切换的方法和装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1913475A (zh) * 2006-09-14 2007-02-14 杭州华为三康技术有限公司 一种扩展802.11无线局域网的方法及系统
WO2008034357A1 (en) * 2006-09-20 2008-03-27 Huawei Technologies Co., Ltd. Method and system for capwap intradomain authentication using 802.11r
CN101159646A (zh) * 2007-11-23 2008-04-09 杭州华三通信技术有限公司 一种ap的注册方法及设备
CN101471777A (zh) * 2007-12-29 2009-07-01 中国科学院计算技术研究所 一种基于域名的跨域接入控制系统及方法
CN101610533A (zh) * 2009-07-13 2009-12-23 杭州华三通信技术有限公司 一种实现访问控制器备份切换的方法和装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104812021A (zh) * 2015-04-01 2015-07-29 杭州华三通信技术有限公司 一种ap接入ac的方法及装置
CN104812021B (zh) * 2015-04-01 2018-12-25 新华三技术有限公司 一种ap接入ac的方法及装置
CN113518383A (zh) * 2021-06-23 2021-10-19 杭州萤石软件有限公司 网络管理方法、装置、系统、设备及计算机可读存储介质
CN113518383B (zh) * 2021-06-23 2024-02-27 杭州萤石软件有限公司 网络管理方法、装置、系统、设备及计算机可读存储介质

Also Published As

Publication number Publication date
CN102143045A (zh) 2011-08-03
CN102143045B (zh) 2014-02-19

Similar Documents

Publication Publication Date Title
WO2011140879A1 (zh) 无线局域网中业务报文的处理方法、设备及系统
CN105812259B (zh) 一种报文转发方法和设备
US9628295B2 (en) Method, device, and routing system for data transmission of network virtualization
US9578548B2 (en) System and method for configuring multiple IP connections
CN103685022B (zh) 报文转发方法及服务提供商网络边缘设备
EP3240250B1 (en) Virtual router terminating an overlay tunnel in a storage area network
EP2412129B1 (en) Redundant host connection in a routed network
EP2428003B1 (en) An address resolution optimization procedure to effect a gradual cutover from a provider bridge network to a vpls or provider backbone bridging network
US10673737B2 (en) Multi-VRF universal device internet protocol address for fabric edge devices
EP2618535A1 (en) Method and system for realizing virtual machine mobility
EP1793538B1 (en) Seamless mobility in layer 2 radio access networks
CN108574616A (zh) 一种处理路由的方法、设备及系统
CN103685006A (zh) 一种在边缘设备上的报文转发方法和边缘设备
WO2018214809A1 (zh) 消息发送方法及装置、存储介质
US11296985B2 (en) Normalized lookup and forwarding for diverse virtual private networks
WO2012155867A1 (zh) 一种报文发送方法及接入控制器
US20210328922A1 (en) Packet forwarding method and network device
CN108028801A (zh) 一种基于sdn的arp实现方法及装置
EP2822238B1 (en) Method and device for establishing a pseudo wire
JP7298606B2 (ja) 通信システム及び通信方法
EP3902211B1 (en) Packet forwarding method and network device
JP5713865B2 (ja) Vpn終端装置、通信システム、パケット転送方法、及びプログラム
US20220247598A1 (en) Packet Detection Method, Connectivity Negotiation Relationship Establishment Method, and Related Device
EP3021529B1 (en) Method and device for implementing layer 3 virtual private network
EP3324587B1 (en) Multicast method, multicast relay device and system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11780100

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11780100

Country of ref document: EP

Kind code of ref document: A1