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Data transmission method and device

A data transmission method and wireless device technology, applied in the field of data transmission methods and equipment, can solve the problems of AC or/and AP with heavy load and heavy tasks, and achieve the effect of reducing possibility and improving message processing efficiency

Active Publication Date: 2013-09-18
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a data transmission method and device, which can overcome the problem of excessive AC or / and AP load caused by a large amount of message processing tasks in the existing WLAN networking

Method used

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  • Data transmission method and device

Examples

Experimental program
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Embodiment 1

[0070] This embodiment can be applied to a system including an AP, an AC, and at least one non-wireless device. The AP can process the wireless message sent by the STA based on the method of this embodiment. Specifically, as Figure 4 As shown, it is a schematic flowchart of a data transmission method provided by an embodiment of the present invention, which may include the following steps:

[0071] In step 401, the AP receives the wireless message sent by the STA.

[0072] Step 402, when the AP determines that the wireless packet needs to be forwarded to the destination through the non-wireless device, the AP encapsulates the wireless packet into a tunnel protocol packet and forwards it to the non-wireless device, and the non-wireless device transmits the tunnel protocol packet to the non-wireless device. The message is processed and forwarded; wherein, the tunnel protocol message carries the VLAN Tag (label) of the VLAN where the STA is when it goes online.

[0073] Specifi...

Embodiment 2

[0078] This embodiment can be applied to a system including an AP, an AC, and at least one non-wireless device, and the non-wireless device can process the tunnel protocol message forwarded by the AP based on the method of this embodiment, specifically, as Figure 5 As shown, it is a schematic flowchart of a data transmission method provided by an embodiment of the present invention, which may include the following steps:

[0079] Step 501, the non-wireless device receives the tunneling protocol message sent by the AP, the tunneling protocol message encapsulates the wireless message sent by the STA to the AP, and the tunneling protocol message carries the VLAN of the VLAN where the STA is when it goes online Tag.

[0080] Specifically, in the embodiment of the present invention, in addition to local forwarding and centralized forwarding, the AP forwards the wireless message to the destination end through a designated non-wireless device. When the AP determines that the receiv...

Embodiment 3

[0088] In this embodiment, by configuring an ACL on the AP, the AP is instructed to perform corresponding forwarding processing on the received wireless packets, specifically, as Figure 6 As shown, it is a schematic flowchart of a data transmission method provided by an embodiment of the present invention, which may include the following steps:

[0089] Step 601, the AP receives the wireless message sent by the STA.

[0090] Step 602, the AP queries the pre-configured ACL according to the wireless message. If a matching ACL is found, go to step 603; otherwise, perform conventional centralized forwarding processing.

[0091] In step 603, the AP determines whether the operation corresponding to the matching ACL is centralized forwarding. If yes, perform centralized forwarding processing; otherwise, go to step 604.

[0092] In step 604, the AP determines whether the operation corresponding to the matching ACL is local forwarding. If yes, perform local forwarding processing; ...

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Abstract

The invention discloses a data transmission method and device. The data transmission method includes that an AP (access point) receives a wireless message transmitted by a wireless client side STA; when determining to transmit the wireless message to a destination terminal through a non-wireless device, the AP encapsulates the wireless message into a tunnel protocol message prior to forwarding the same to the non-wireless device; the non-wireless device processes the wireless message of the tunnel protocol message into an Ethernet message and forwards the same in a VLAN (virtual local area network) corresponding to a VLAN Tag carried along in the tunnel protocol message if determining an IP (internet protocol) address and a port of a message header of the tunnel protocol message are a self IP address and a designated port after receiving the tunnel protocol message. By the embodiment, message handling efficiency is improved, and possibility of message losing is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and equipment. Background technique [0002] WLAN (Wireless Local Area Network, wireless local area network) technology is one of the hotspots in today's communications, using WLAN technology can enjoy the advantages of simple construction and low maintenance costs. The current mainstream WLAN technology is mainly realized through the combination of AC (Access Controller, access controller) + FIT (thin) AP (Access Point, access point). The AC completes the unified management and maintenance of the AP and the forwarding of wireless data by establishing a dedicated CAPWAP (Controlling And Provisioning of Wireless Access Point) tunnel with the AP. The system architecture diagram can be found in figure 1 . For the signaling interaction process for establishing a CAPWAP tunnel between the AP and the AC, see figure 2 . [0003] Such as f...

Claims

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Application Information

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IPC IPC(8): H04W28/08
Inventor 刘佳
Owner NEW H3C TECH CO LTD
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