What is a visual network monitoring and visualization system?

Question

Computer networks

Please tell me a functional solution for network monitoring, which allows you to get a visual diagram, for example, like in Visio, but interactive, which determines the type and can models of devices, their connection speed per input / output, the number of free / used ports and send notifications in case of unavailability given nodes.
Level of detail: BEFORE the installed OS and toner level, network devices are more likely to be of interest, while user devices in the form of a monitor icon with a system unit and a PC name will be quite enough
Examples:
paid: www.paessler.com
free: www.spiceworks.com
If anyone has a positive experience in deploying and operating such a system, I will be immensely grateful for advice or help, of course, on a reimbursable basis, thanks

Answer 1

I have been using PRTG for more than a year, I am satisfied with almost everything. I can tell you if you have any questions

Answer 2

The Dude.

Answer 3

almost all systems can do this
with zenos zabbix and nagios with ichinga
I don’t even know how to find a system that can’t do this

Answer 4

Here on Habré there is an article about another system.

Answer 5

And that the interface was not in the style of the early 90s? Clients for mobile devices?

Answer 6

sourceforge.net/projects/nagios

Answer 7

https://osl.uoregon.edu/redmine/projects/netdot
There is an article about him on Habré: habrahabr.ru/post/185660