Metropolitan area network basically covers the video surveillance network of primary and secondary schools, but it seems that there are loopholes. What if you are always vulnerable to attack?
This is a security risk, so we must deal with it quickly. Our previous metropolitan area network also has security risks. Later, we rebuilt it with Ruijie's smart education MAN scheme. It is much safer now. It can identify non-camera traffic and attacks, and stop alarming. It can also identify existing cameras, legally register them, give an alarm when the connected devices change and provide multiple protections.