A method and device for automatic configuration of PVC for CPE

摘要

This invention describes a method to automatically configure the PVC for a CPE. The said method includes: The CPE stores a list of PVC parameters, which it appends onto the packets received from the user's PC before forwarding the packets to the CO device for PVC detection; receiving the reply packets containing the PVC parameters sent from the BRAS on the network side, the CPE will configure the said PVC parameters as its own parameters. This invention adopts multiple strategies and packet types for PVC auto-configuration to improve its reliability and flexibility. At the same time, the communication between the CPE and a higher layer system is infrequent during the configuration to prevent a broadcast storm within the network. Besides, the CPE needs to maintain only a single list of PVC parameters and require only one PVC in practice, which reduces the operation cost at the terminal and the extra costs involved in using multiple PVCs.