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Method for switching wireless access controllers (ACs) and wireless access point (AP)

A wireless access point and wireless access technology, which is applied in the field of wireless communication, can solve problems such as inapplicability, inability to realize hot standby switching, and inability to judge the main control board of the AP management control board, etc., so as to achieve flexible use and easy access to WEB pages and network management data collection effect

Active Publication Date: 2013-01-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. After the link between the AP and the active AC is disconnected, the AP switches to the standby AC. Since the IP address is the same, after the AP successfully joins the standby AC, it does not know whether the main link is restored or the standby link is switched. The flag bit tells whether the configuration needs to be delivered, and the configuration will be re-delivered, and the hot standby switch cannot be realized;
[0007] 2. Two sets of ACs are connected to the same ATCA (Advanced Communication Computing Architecture) frame at the same time. Since the data between the AP management control board and the user service access board in the two sets of ACs are forwarded by the same switch board, if The IP addresses of the AP management control boards are the same, so the user service access board cannot determine which AP management control board is the main control board, so it cannot be applied to the same ATCA chassis network

Method used

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  • Method for switching wireless access controllers (ACs) and wireless access point (AP)
  • Method for switching wireless access controllers (ACs) and wireless access point (AP)
  • Method for switching wireless access controllers (ACs) and wireless access point (AP)

Examples

Experimental program
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Embodiment 1

[0069] In this embodiment, after the AP and the two ACs are correctly networked, the AP grouping and WLAN configuration parameters are preset in the active and standby ACs, and the two AC addresses are configured in the option field of the AP address pool information of the active and standby ACs. One AC address is the address of the master AC, and the second AC address is the address of the backup AC. The status (including AC status and interface status) is determined between the master and backup ACs through heartbeat detection. In this embodiment, the AP slaves the master AC Obtain the addresses of the active and standby ACs. The user's business is in a centralized tunnel forwarding mode, such as figure 1 As shown, including the following steps:

[0070] Step 101: The AP initiates a Discover message of the CAPWAP protocol to the AC connected to the AP to obtain an address;

[0071] Step 102: The primary AC receives the Discover message sent by the AP, and replies to the DHCP res...

Embodiment 2

[0086] In this embodiment, after the AP and AC are correctly networked, the AP grouping and WLAN configuration parameters are preset in the active and standby ACs, and two AC addresses are configured in the option field of the AP address pool information of the active and standby ACs. One AC address is the address of the master AC, and the second AC address is the address of the backup AC. The status (including AC status and interface status) is determined between the master and backup ACs through heartbeat detection. In this embodiment, the AP obtains the master AC from the master AC. With the standby AC address, the user's business is in local forwarding mode, as shown in 2, including the following steps:

[0087] Step 201: The AP initiates a Discover message to the AC connected to the AP to request an address;

[0088] Step 202: The primary AC receives the Discover message sent by the AP, replies to the offer message, and carries the primary and secondary AC addresses in the opt...

Embodiment 3

[0101] In this embodiment, after the AP and AC are correctly networked, AP grouping and WLAN configuration parameters are preset in the active and standby ACs, and the state (including the AC state and the interface state) is judged between the active and standby ACs through heartbeat detection. In the external DHCP server that supports option field configuration, press to set the primary and secondary AC addresses. The first AC address is the address of the primary AC, and the second AC address is the address of the secondary AC. In this embodiment, the AP obtains the active and standby AC addresses from an external DHCP server that supports option field configuration. The flowchart is shown in 3 and includes the following steps:

[0102] Step 301: The AP initiates a Discover message to the DHCP server to request an address, and parses the relevant option field in the offer message replies from the DHCP server to obtain the active and standby AC addresses;

[0103] Step 302: The A...

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Abstract

The invention discloses a method for switching wireless access controllers (ACs) and a wireless access point (AP), which can ensure continuity of user services. The method comprises the following steps of: acquiring address information of a first AC and a second AC by the wireless AP, and acquiring wireless interface configuration information and tunnel interface configuration information from the first AC after the AP registers the first AC successfully; and when a network link between the AP and the first AC breaks, registering the second AC, acquiring new tunnel interface configuration information from the second AC, and implementing the user services by using the previously-acquired wireless interface configuration information and the newly-acquired tunnel interface configuration information from the second AC. The AP comprises an information acquisition module, a registration module and a service module. The method for ACs and the wireless AP of the embodiment of the invention are used to implement hot standby switching of the main and standby ACs, thereby avoiding interruption of the user services at a work station.

Description

Technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless access controller switching method and a wireless access point. Background technique [0002] With the in-depth advancement of 3G services, many mobile operators are paying more and more attention to another technology-wireless local area network (WLAN), taking WLAN as an important supplement to 3G services, in hotspot areas with large data traffic Large-scale network construction, and actively guide users to use WLAN. [0003] Due to the complicated management of fat AP (wireless access point) before, WLAN network is not centralized and unified, and now it is gradually developing to the model of thin AP (wireless access point) + AC (wireless access controller). The advantages of thin AP + AC are AC uniformly configures and manages APs to facilitate network management data collection. [0004] In the thin AP mode, the administrator will not log in to the AP page to confi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/10H04W60/00H04W76/00
CPCH04W36/10H04W60/00H04W76/00H04W36/0033
Inventor 杨良军陶秉魁倪冬华
Owner ZTE CORP
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