Summary: In the article described the problems and methods of their solution related to the organization of video surveillance without static IP addresses.

Keywords: Surveillance, static IP address, dynamic IP address, DDNS.

Summary: This article compares the results of calculations of average delay of three kinds of packages, made in imitation, and the resulting system Anylogic analytical method in queuing systems with relative priority.

Keywords: queuing system with relative priority, average latency, Anylogic.