Using SNMP or Simple Network Management Protocol you can exchange management information between various network devices. Besides, SNMP also supports devices like wireless bridges, switches and routers. With SNMP protocol, you can find out the usage of the following CPU, NICs, RAM, HDD and many more things. To monitor your server health SNMP is considered to be the best internet protocol. It will keep a constant watch on all the SNMP based devices at frequent intervals.