The Design and Analysis of IN Disaster Tolerant System Based on Birth-Death Process

Key technologies of disaster tolerant intelligent network are briefly introduced at first. After the hot-standby disaster tolerant IN architecture is analyzed, a load-sharing mode is proposed which has no downtime during switchover. By constructing the availability models of local clustered subsystem and the load-sharing disaster tolerant IN system based on birth-death process, it is proved that the load-sharing- based disaster tolerant IN system can meet the high availability requirement for disaster tolerance.