Acer ISDN 128 Surf USB Bedienungsanleitung PDF herunterladen (Seite 10)

5.2.3 QoS-plot

Qosplot is a tool that takes as input a set of text log files created by CRUDE [9] and

produces as output the data and command files for gnuplot [11], to plot diagrams depicting the

QoS characteristics.

5.2.4 GNU-Plot

Gnuplot is a command-line driven interactive function plotting utility for UNIX, DOS,

VMS, and many other platforms. It was originally intended as graphical program which would

allow to visualize mathematical functions and data.

5.3 Measuring with GNU utilities

The principle of measuring QoS parameters is on figure 4. On the first side is PC1 with

CRUDE. CRUDE emit defined flows of packets to networks. On the second side is PC2 with

RUDE which receive packets from network. Information from output of RUDE are passed to

Qosplot and GNU-plot programs.

Fig. 4 -Principle of measuring QoS with GNU based program

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Acer ISDN 128 Surf USB Bedienungsanleitung Seite 10