ATM VLAN SERVICE CONTROL METHOD USING B-ISDN SIGNAL CAPACITY

摘要

The present invention provides an ATM terminal-to- ATM connection function over a wide area by Shortcut routing between ATM hosts or ATM routers that do not belong to the same IP subnet connected to the ATM switching system when providing an ATM VLAN service, which is a connectionless data service through the ATM network. . In other words, by implementing a built-in large-capacity address translation server that performs address translation function by NHRP, and in connection with the point-to-point, point-to-multipoint call / connection control and closed user group supplementary services of ATM switch, In addition, it provides functions to maintain security by limiting communication range and multicasting service within VLAN group without developing additional functions. By implementing the mapping function for ATM VLAN emulation, call / connection control, additional service, and ATM traffic control function by various signaling of ATM switching system are used as it is for providing connectionless data service. In addition, the address translation or routing information transmission channel is allocated as a permanent virtual channel in advance and transmitted to the VLAN server function performing portion, thereby reducing service delay due to address translation during IP packet transmission.