Stochastic Model for Analyzing Packet Loss and Delay in Unreliable Network Switching Nodes

A communication network switching node with packet switching is considered, where failures in the packet servicing system lead to the loss of packets that are being serviced. After a failure, the software is rebooted, and the servicing of the packet copy, which was left in the buffer storage device, is resumed. The time required for software rebooting and repeated servicing of the packet copy results in additional delays for packets that are in the queue. To ensure that the packet delay does not exceed the permissible value, it is necessary to correctly determine the functionality and reliability indicators for their servicing system.