Message receiving and transmitting method capable of realizing route and bridge connection functions at the same time

Abstract

This invention relates to a message send / receive method realizing routing and bridge-connecting functions under an internet protocol setting bridge-connection module and bridge-connection port on a router to set up a common Ethernet address and IP address for it. When receiving message via bridge-connection port, the message is transferred to the bridge-connmection or IP module for sending or discarding. When sending the message, the related information on the router of sending message is compared with coherent information in the message or duplicated to be sent by the bridge-connection module. This invention method enables inter-bridge connection access in bridge-connection network, and inter-communication of IP protocols with non bridge-connection network.

Description

technical field [0001] The invention relates to a message receiving and sending method for simultaneously realizing routing and bridging functions, and belongs to the technical field of data communication. technical background [0002] In a router with bridging function, the bridging function can be realized on some ports of the router, and the routing function can be realized on other ports, so that the functions of the bridge and the router can be realized on one device at the same time. However, networks connected to bridged interfaces cannot be routed and can only communicate with each other in several bridged networks. [0003] For the bridge function, what is realized is the forwarding of data packets at the second layer, but cannot handle the IP layer. The bridge learns the Ethernet addresses of different ports, establishes the address mapping table between the Ethernet address and the port, matches the Ethernet address of the received message, and then sends it to t...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the disadvantages that routing cannot be performed when using the bridging function in the prior art, and it is impossible to communicate with the network connected to other non-bridging ports, and proposes a message reception that simultaneously realizes routing and bridging functions under the Internet Protocol And the sending method, so that the bridged network can complete the communication function through the forwarding of the bridged link layer, and the network connected to other non-bridged ports can be forwarded at the network layer through the routing function of IP to realize the IP protocol. communication