Colasoft packet graphing
Colasoft packet graphing software has the capability of sorting events separated by OSI layer by criteria of severity, source address or event type and helps speed recovery. It also has a matrix view that depicts connection view which further enhances diagnosis. Colasoft is compatible with Windows XP, Vista as well as windows 7 both in 32 and 64 bit version.
Freeware
Intermapper control center
Intermapper is a network monitoring tool that monitors system availability in a variety of methods which includes: SIMPLE PING via SNMP protocol and HTTP, DHCP, DNS and LDAP for specific tasks. With intermapper and administrator can monitor service availability and be instantly notified on available network problems. One advantage of intermapper is its cross-platform support for both windows and Linux based operating systems.
$290
Nagios
Nagios is an open source tool that offers support for any sized network. Despite the fact that it is simple to install, it however requires some time to tweak it. Key advantages includes its scalability, ease of navigation, plenty of plug-ins as well as its ability to generate reports
Free
Zenoss
Zenoss monitoring tool is similar to Nagios though it is easier to configure. Zenoss interface is rendered on a web based platform and is cross-platform compatible with support for Linux, Mac OS X and windows. It also comes with virtual appliances for VMware.
Free
Reference
Chris Brenton, C. H. (2002). Mastering network security. John Wiley & Sons.
Frye, S. (2010, September 2). 12 most recommended network monitoring tools. Retrieved 3 19, 2012, from Zdnet: http://www.zdnetasia.com/12-most-recommended-network-monitoring-tools-62202606.htm
Marchette, D. J. (2001). Computer intrusion detection and network monitoring: a statistical viewpoint. Springer.
Natarajan, R. (2009, September 2). Top 5 Best System Monitoring Tools. Retrieved 3 19, 2012, from The geek stuff: http://www.thegeekstuff.com/2009/09/top-5-best-network-monitoring-tools/
