Method and device for implementing link load balance in wireless local area network

Abstract

The embodiment of the invention provides a method for implementing link load balance in a wireless local area network, which comprises the steps of: respectively establishing n tunnel links with at least two logic ports on a wireless access point AP, and establishing a one-to-one corresponding relationship of respective port numbers of the at least two logic ports and the corresponding tunnel links, wherein the number of n is greater than or equal to the number of physical ports on the wireless access point AP; receiving a data message sent to the AP; and selecting a first port number of one of the at least two logic ports to carry out packaging on the data message. Meanwhile, the embodiment of the invention further provides a device for implementing link load balance in the wireless local area network. The method and the device which are provided by the embodiment of the invention have the beneficial effects of effectively increasing an outlet bandwidth of the wireless AP and solving the problem of limitation to a forwarding bandwidth of an Ethernet port when the wireless local area network is deployed.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method and a device for realizing link load balancing in a wireless local area network. Background technique [0002] CAPWAP (Control And Provisioning of Wireless Access Points Protocol Specification) tunnel is used for communication and interaction between AP (Access Point wireless access point) and AC (Access Controller wireless access controller), and is divided into control tunnel and data tunnel. The control channel is used to manage the AP, and the data channel is used to forward the data of the wireless terminal. The forwarding includes the following two methods: [0003] 1. Centralized forwarding [0004] All packets sent by the wireless terminal are encapsulated into CAPWAP packets by the AP, and then transmitted to the AC for decapsulation and forwarding. All the packets sent to the wireless terminal are encapsulated into CAPWAP packets by the AC, and then transmit...

AI Technical Summary

Problems solved by technology

[0013] However, the data forwarded by the access switch is the data exchanged between the AC and the AP. The access switch cannot identify whether the data is a CAPWAP message, and cannot obtain the inner layer message of the message (the inner layer message is also the datagram of the wireless terminal. Text) information, load balancing cannot be performed based on the inner layer information of the message, and for a single AP, the source MAC, destination MAC, source IP, destination IP, source port, and destination port contained in the CAPWAP message are the same , so for the packets sent to the AP, the access switch adopts the current load balancing algorithm, and only one of the links will be used, while the traffic of the other link is almost 0, which cannot improve the bandwidth.

Images