Message receiving and transmitting method capable of realizing route and bridge connection functions at 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 that realizes routing and bridging functions at the same time, and belongs to the technical field of data communication. technical background [0002] In a router with bridging function, some ports of the router can realize the bridging function, and the other ports can realize the routing function, so that the functions of a bridge and a router can be realized on one device at the same time. However, the network connected to the bridge interface cannot be routed, and can only communicate with each other in several bridged networks. [0003] For the bridge function, what is achieved is the forwarding of data packets at the second layer, but the IP layer cannot be processed. The bridge establishes a mapping table between the Ethernet address and the port address through the Ethernet address learning on different ports, matches the Ethernet address of the received message, and then sends it to th...

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