Jesse Rothstein, Network Management Expert
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Expert Answer: Traditional approaches to application performance monitoring use a number of technologies, some of which are decades old and include SNMP polling, NetFlow collection, synthetic transactions and log-file analysis. For application visibility, software agents typically are installed on application infrastructure components. These agents perform byte-code instrumentation or call-stack sampling and report back system and application performance data to a central reporting server. The downside of these legacy approaches is that they consume system resources, typically have expensive per-server licensing fees, and are difficult to deploy and maintain, requiring testing and certification every time there is a change to the application.
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How to compare Cisco vs. HP switches
Question: I'm evaluating Cisco switches vs. HP ProCurve switches. What are the major things to consider?
Expert Answer: For networking professionals comparing switches from different vendors, there are a wide variety of different switches available, and various things to consider, depending on the business size, budget and requirements. Two of the biggest switch vendors are Cisco and HP, both of which offer wide lines of networking switches. There's been a good deal of discussion about the suitability of Cisco switches vs. HP switches for office environments.
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