Packet processing method, access controller, access point and system in access network

Abstract

The embodiment of the invention provides a message processing method, an access controller, an access point and a system in an access network. The access network comprises the access controller, the access point and user equipment, wherein the access point is connected with the access controller. The method comprises the following steps of: receiving a control message from the access point through a data channel between the access controller and the access point by the access controller, wherein the control message carries on-line information of the user equipment and virtual local area network identifier information of the data channel; and after determining to allow the user equipment to be associated or reassociated according to the on-line information, learning the virtual local area network identifier information. According to the embodiment of the invention, under the networking scene of a fit access point, when data are forwarded in a non-tunnel way and the first data message is initiated by the access controller, the access controller can learn the virtual local area network which is used when the downlink data is transmitted, and particularly, under the condition that an intermediate network is subjected to virtual local area network conversion, the downlink service can be ensured to be carried out smoothly.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a message processing method in an access network, an access controller, an access point and a system. Background technique [0002] In a wireless network, an access point (Access Point; hereinafter referred to as AP) connects thousands of wireless users all over the place to a wired network. Initially, each AP is an independent network element and manages its own user groups. This kind of AP is called a "fat AP (Fat AP)". With the wide application of wireless networks, there are more and more APs. It is very inconvenient to manage a large number of "fat APs". Later, a centralized control access controller (Access Controller; AC for short) appeared. The AC can centrally manage a group of APs, and the APs managed by the AC are called "Fit APs (Fit APs)". [0003] In the centralized control mode, the AC manages the AP through the thin AP management protocol; the Wireless A...

AI Technical Summary

Problems solved by technology

[0005] Sometimes, the first message of the data channel is initiated by the AC. At this time, the AC cannot know the VLAN used when sending downlink business data; for the above problems, the existing technology does not provide an effective solution

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