Network Monitoring Software(by
opmanager) Trusted by over 700,000 network administrators across 93 countries, OpManager provides out-of-the-box support for monitoring critical resources on servers, routers, switches, firewalls, domain controllers etc. Besides the device availability, the other resources monitored include CPU, disk, and memory utilization, traffic utilization, availability of critical services etc
[Location: http://www.manageengine.com/network-monitoring/]