Archive for category: Network Infrastructure

A broadcast storm

26 Sep
September 26, 2012

A broadcast storm occurs when a network system becomes overloaded by continuous multicast or broadcast traffic. This happens when different nodes start sending and broadcasting data over a network link, and the other network devices respond by rebroadcasting the data back to that same network link.  Eventually, this overload will cause the entire network to melt down and lead to the failure of network communication. It is a system admin’s worst nightmare (especially if it is a Monday morning!) and promises a very interesting day to say the least!

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Network Monitoring

18 Jul
July 18, 2012

As a systems administrator,  you need to be proactive rather than reactive.  That is why we went out and purchased PRTG Network Monitor.  We needed to be able to monitor our bandwidth consumption and didn’t have a way to see real-time statistics until we set up PRTG.  PRTG is a great product and it comes at a relatively low cost.  In addition to bandwidth monitoring, PRTG also has hundreds of sensors to monitor every piece of equipment across your enterprise.  In addition to monitoring bandwidth, we also monitor our internal servers for disk space, cpu and memory utilization for both Windows and Linux platforms.  We are also able to monitor our Catalist Digital Servers, Ecommerce Servers and Web farm located at an external hosting facility across our dedicated site-to-site vpn tunnel.  With the proper tools, it makes the job a lot easier.

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