A wireless mesh network message interaction method and system

Abstract

The present application discloses a method for message interaction in a wireless mesh network, including: using a first port to receive a first message sent by a second device; judging whether the first feature value is stored in the feature database, and if so, prohibiting the The message is sent to the second device through the second port; if not, it is judged whether the second feature quantity is stored in the feature library; if so, the first message is forwarded through the first port or the second port; if not, the The feature quantity of the first device is saved as the first feature quantity of the first message, the second message is obtained, and the second message is forwarded through the first port or the second port. It can be seen that this application utilizes the feature quantity in the message, and when it is determined that the devices are directly connected by wire, the message is prohibited from being repeatedly sent between the devices, which cuts off the premise of loop formation and solves the network loopback problem. At the same time, it can also Reduce the occurrence probability of CSMA / CD collision retransmission in wireless network. In addition, the application also discloses a wireless mesh network message exchange system.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for exchanging messages in a wireless mesh network. Background technique [0002] With the development of society, pure wired network or wireless network is difficult to meet all application occasions. Therefore, wired network and wireless network are mixed and connected to form a mesh network architecture and form a wireless mesh network. [0003] Wireless mesh network, also known as "multi-hop" network, adopts a wireless self-organizing network architecture without a center, and is a new wireless network technology completely different from the traditional wireless network with a center. [0004] In the application process of the wireless Mesh (wireless mesh network) ad hoc network system, through wired direct connection between any device nodes in the system to form a wired and wireless hybrid connection, it is possible to cover wireless communicatio...

AI Technical Summary

Problems solved by technology

If the network loopback problem is not solved, the first broadcast message in the network will be copied, forwarded, and broadcasted continuously after entering the loop, and cannot be ended. If there is no solution to the network loop, it will accumulate over time. The network will be filled with countless data packets that cannot reach the destination network, causing a network broadcast storm, resulting in network paralysis; and the loop will cause MAC (Multiple Access Channel, multiple access channel) address drift, resulting in network interruption. The device nodes in the networking system have a learning function. As long as the device nodes in the network send the first broadcast message, the MAC address will be learned to the port where the network loop exists.

Wrong MAC address table will directly cause network interruption

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