User Interface

To enable the VIPER testing, a web-based user-interface was created, which includes the following features:Network SetupThe network will be configured for different configurations using a tool called Expect, which can automate interactive applications such as telnet, ftp, rlogin, etc. The different network configurations used in VIPER realization are explained in the next chapter. After the quality is measured for a particular configuration, the network will be reconfigured into a default state.Generation of NoiseData enough to congest the network in the form of noise is injected into the network. This noise is generated using a tool called Iperf.Playing of voice filesVgetty is the tool used to generate the calls and to pump the voice files into the network. Vgetty is controlled through the web-based interface using the vgetty::modem, which is perl module and allows the control of voice modem through a perl script.Voice quality ratingThe test takers rate the quality of voice on a scale of 1 to 5 for the entire possible network configuration that were been designed. These results will be stored into a database for further analysis.