For the network configuration manager, I would take a look at Auvik. It is free to try and easy to deploy.
They do a decent job of network traffic analyzing. If you want to look inside the traffic only there is Wireshark.
Kind Regards,
Robert Vergeer
I am working in IT from 2001. Experiance with monitoring tools. LogicMonitor. Zenoss. Kaseya Traverse, Auvik.
Besides monitoring i am interested in security for backend systems.