A METHOD OF TRANSMITTING DATA OF DIFFERENT USERS IN THE VC -TRUNCK OF MAN

摘要

The invention disclosed a method of transmitting data of different users in the VC - TRUNCK of MAN the method including : in the up direction of transmitting data from the port of MAN devices to VC - TRUNCK , inserting a nesting VLAN Tag into Ethernet data frames , the nesting VLAN Tag used to distinguish the different users having same label in the same VC-TRUNCK, forming data message including more than one Tag message of VLAN , then transmitting the data message to VC -TRUNCK ; in the down direction of transmitting data from VC - TRUNCK to the port of MAN devices, delaminating the VLAN Tag nested in the current data message, returning to recognizable data frames , then transmitting the data frames to the port of the devices. The invention solved so many problems ,for example, multi-users sharing the same transmitting channels, safely isolating the user data, satisfied the different QoS of multi-user and so on , at the same time , spreading the fields of application of 802.1 Q VLAN ID .