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A Java Applet that works with NeTraMet Meters

The idea why we initially looked at Java was that we wanted to write a real time network analysis applet which allows to get immediate insights into the traffic on the network being monitored. In the last chapters, we introduced
1.
The flow methodology, which allows us to reduce the amount of data collected to the minimum we really need.
2.
The NeTraMet architecture and the OC3MON hardware, providing us with a platform and a standardized interface for flow measurement and analysis at high data rates.
3.
The ``fluid'' application, which serves as a good example of how the collected flow information can be presented within a graphical interface
4.
The AdventNet Java SNMP class library, which provides us with a means to write an applet that can communicate with existing network management agents.

In this chapter, we will describe how we integrate all those points into one single Java applet we called ``fluid''. This applet displays flows measured with a NeTraMet meter in a way like nifty does it. The difference is that our applet is running inside a web browser and therefore is easily usable from anywhere on the network. Currently it does not offer as many features to change the display mode, axis scaling etc. as nifty, but since the code is written in modular object-oriented way, it should not be too difficult to extend it.

The main goal when implementing the applet was not to write a sophisticated product but we wanted to examine whether it was possible to do this in Java.



 
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8/4/1997