Network monitoring and troubleshooting is hard. TotalView makes it easy.
This means every device on your network, and every interface on every device is automatically analyzed for performance, errors, QoS, and configuration.
Linux System Diagnostics (LSD) is a project to develop an OpenSource diagnostics package for Linux (i386), simular to PC-Doctor and WinMSD. It will encompass utilities to view system resources, as well as test system hardware.