A METHOD FOR SUMMARIZING DEFAULT ADDRESS OF PNNI LOWEST LEVEL NODE IN ATM SWITCHING SYSTEM

摘要

PURPOSE: A method for summarizing a default address of the lowest level node in a PNNI(Private Network-Network Interface) of an ATM(Asynchronous Transfer Mode) switching system is provided to summarize a reachable address for a node almost to the length of an internal prefix, when the PNNI is applied to a public network. CONSTITUTION: Databases for storing prefix information, node information and reachable address information are generated. A parameter for generating an internal prefix is received and arranged appropriately for a system. The availability and an address system of the parameter are checked to generate prefix information and register the prefix information in the prefix information database. A parameter for generating node information is received, and the availability and an address system of the parameter is checked to generate an AESA(ATM End System Address). If an internal prefix is included in the AESA and a node address is decided not to be allocated yet from a digit state of the AESA, node information is generated using the node information generating parameter and the AESA, and the node information is registered in the node information database. Summary to the bit length of the internal prefix is performed using a node address in the node information, and the internal prefix is defined as a default reachable summary address, thereby summarizing the default reachable address.