OpManager is an agent-less monitoring and management tool that uses a wide variety of protocols and technologies: ICMP, SNMP, WMI, CLI (Telnet/ SSH), TFTP, SCP,VMware,Citrix and UCS API's. OpManager also includes a Syslog demon, SNMP Trap listener and Flow collectors for NetFlow, sFlow etc.. All these and more bring together many network performance monitoring and management capabilities within OpManager.