This is an excerpt from the draft of the 2nd edition, “A Primer on Electronic Security for Schools, Universities & Institutions”. Readers are asked for their comments and viewpoints surrounding this snipet.
Tangets and offshoots to this topic are welcome.
Plan the LAN
Physical security information systems, including video, are critical to a school’s security operation and general well-being. The security mission requires fail-safe systems that operate dependably over long periods of time, and that are ready to respond when needed. Security systems also must be scalable, flexible and able to adapt to a School, University or District’s changing protection needs, and should not have to compete for network resources with the growing number of other applications and users on the enterprise network.
The rapid or unplanned expansion of local area networks (LANs) comes with issues including how to control the network infrastructure, especially related to allowing users access to data. Given the transition of the physical security industry to systems based on Internet protocol (IP), often that data traveling along the enterprise LAN is related to physical security, including video surveillance. Video data can challenge networks both because it uses a lot of bandwidth and because the user has a high expectation of real-time video without latency or jittery images. As busy, growing networks accommodate the demands of more users and applications, it becomes increasingly difficult for a video or security system to operate effectively as part of that enterprise network. Many are concluding that the best approach is a separate IT infrastructure dedicated to video and other security systems. While this is a solution it is not always the best or most cost effective way to handle the requirements of video on a network.