A METHOD OF TRANSMITTING MESSAGE

摘要

The invention relates to a method of transmit message, beforehand distribute and isolate different net submit based on the port of the switch device, the method including: step A: the switch device determine incoming port information of the received message, in according to the result of the distributing and isolating different net submit, determine the range of the port which the said message can be transmit based on the said incoming port information; step B: the switch device transmit the message at the port of the port range of which determined by step A. The invention ensure the distribute and isolate in the different user strictly, insure the security of the net, and at the same time, improve the free which different user use the VLAN to layout net.