OpManager is a network monitoring software that can automatically discover devices on a network, map them visually, monitor them in real-time, and instantly alert on failures. It provides fault and performance monitoring across WAN and LAN infrastructure, automatically discovers devices on a Class C network in under 2 minutes, and monitors applications like Exchange, Notes, MySQL, Oracle, and SQL Server. It performs continuous network monitoring through polling, SNMP monitoring, and listening for SNMP traps to instantly notify administrators of problems via email or SMS.