While a turn doesn’t always indicate a single transaction, it is a good indicator of an application’s overall performance. So, if over a period of time the total number of turns is slowly decreasing, it is safe to say that overall application performance is decreasing, too.
This is where the detailed forensics available in the NP-500 comes into play. By drilling into a specific business group, administrators can generate graphs and reports and look for trends based on a wide range of metrics. Graphs can be created based on all members of the business group, by the applications in use by the group, by specific TCP conversations, or even by a specific port.
It is easy to get lost in the myriad choices for inspecting the collected data. Network Physics helps speed the analysis by including predefined templates called NetSensory Insights. The Insights are available for auditing network usage, monitoring baseline usage, troubleshooting, security, and optimization. Channel partners can create custom Insights based on specific customer needs, and new ones can be downloaded from Network Physics as they become available.
A Picture Is Worth…
The graphical capabilities built in to the NP-500 are first-rate. One of the most useful graphs is the Response Time Composition Chart. This one graph displays server response time, connection setup time, network inbound and outbound round trip time, as well as data transfer time and retransmission delay. By choosing a wide date range, it is easy to see any trends in overall network health. I spent 90 percent of my time using this chart against various aspects of my network.
The NP-500 is truly one of the coolest tools I’ve looked at in quite some time. I love that I can peer deep into the inner workings of my LAN with just a few simple mouse clicks. The amount of data collected is impressive, but far more interesting are the nearly limitless ways that data can be sliced and displayed. The reporting is excellent; IT will have all the information it needs to troubleshoot and understand the network.
Read more about networking in InfoWorld's Networking Channel.