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METHOD FOR TRANSMITTING ATM CELL THROUGH PASSIVE OPTICAL NETWORK, ATM COMMUNICATION EQUIPMENT, OPTICAL SUBSCRIBER DEVICE, AND OPTICAL NETWORK DEVICE
METHOD FOR TRANSMITTING ATM CELL THROUGH PASSIVE OPTICAL NETWORK, ATM COMMUNICATION EQUIPMENT, OPTICAL SUBSCRIBER DEVICE, AND OPTICAL NETWORK DEVICE
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机译:通过无源光网络传输ATM信元的方法,ATM通信设备,光用户设备和光网络设备
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摘要
PROBLEM TO BE SOLVED: To make uni-cast, broadcast, and multicast through an ATM-PON (asynchronous transfer mode passive optical network) without causing any security problem, increasing the traffic, nor reducing the bands assigned to each ONU(optical network unit). ;SOLUTION: An OSU 102 stores the ONU-ID and cryptographic key of each ONU and the identification information and cryptographic key of each ELAN(emulated local area network) on a table 110 and a cryptographic key table 115. At the time of making broadcast, an ATM cell is sent to a PON by adding the purport to the cell as an ONU-ID and, at the time of making multicast, the ATM cell is sent to the PON by adding the purport to the cell as an ONU-ID by performing enciphering with the cryptographic key corresponding to an objective ELAN after adding the identification information of the ELAN to the ATM cell. At the time of making uni-cast, an ATM cell is sent to the PON by adding the ONU-ID of the ONU to the cell after enciphering.;COPYRIGHT: (C)1999,JPO
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