SNMP & ICMP Protocols

Here are a couple of communication protocols I learned today on a system at work. SNMP SNMP stands for Simple Network Management Protocol. It runs over UDP (User Datagram Protocol: a lightweight method of sending data that doesn’t require a back-and-forth connection handshake) on ports 161 and 162 (specific numbered channels that network services listen on) and is used to discover and monitor devices on a network. Say you have a dozen devices on your network and one drops off, SNMP sends a notif