Downlink message forwarding method and AP device

Abstract

The embodiments of the invention provide a downlink message forwarding method and an AP device, relate to the technical field of communication, and aim to improve the speed of message forwarding. The method comprises the following steps: a wireless access point AP device filters out a message to be forwarded from received downlink messages, wherein the destination MAC address of the message to be forwarded points to the AP device or a terminal device in data connection with the AP device or the destination MAC address of the message to be forwarded is not a unicast address; determining the forwarding strategy of the message to be forwarded; if the forwarding strategy of the message to be forwarded is a fast forwarding strategy and there is a terminal MAC address matching the destination MAC address of the message to be forwarded in a terminal address interface table, sending the message to be forwarded from the interface of an AP device corresponding to the terminal MAC address; and if the forwarding strategy of the message to be forwarded is a conventional forwarding strategy, submitting the message to be forwarded to a protocol stack for bridge forwarding. The method and the device are applied to downlink message forwarding.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a downlink message forwarding method and AP equipment. Background technique [0002] In a distributed system, the wireless access point (English: Wireless Access Point, referred to as: AP) device usually works in bridge mode, connects the wireless workstation and the transmission system through the bridge engine, and is responsible for converting frames between wireless and wired media . This bridging mode usually adopts a simple layer-2 forwarding mechanism, which has relatively high forwarding efficiency. [0003] The bridge forwarding principle of an AP device is similar to that of a Layer 2 switch. Specifically, it organizes multiple network interfaces together to form a logical bridge. An AP device can create multiple bridges, but each network interface can only join A bridge, each bridge has its own bridge forwarding table. When a packet enters the device from a ce...

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Problems solved by technology

[0005] However, the inventors found that the above-mentioned bridge forwarding system has the following disadvantages: on the one hand, the policy control system may only need to process a very small number of messages, and the vast majority of messages do not actually need any control policies, but they will still pass through the policy control system. The comparison of each rule, so the forwarding efficiency of these messages is unnecessarily affected; on the other hand, for the messages in the downlink direction, the AP device only needs to process the destination MAC address is to the associated wireless workstation or to the device However, the above-mentioned bridge forwarding system will not discard those unknown unicast packets. Since these packets have no outgoing interface in the bridge forwarding table, they will be broadcast to all other interfaces on the bridge. When these packets When there are many files, it will seriously affect the forwarding of normal messages, thereby reducing the efficiency of message forwarding

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