Time Sequence Graph

Time Sequence graphs show the general activity and events that happen during the lifetime of a connection, and can be generated with the -S option. These graphs are named as X2Y_tsg.xpl. A sample Time Sequence graph is shown in Figure 5.1.

Figure 5.1: Time Sequence Graph #1
Image tsg1

The Y-axis represents sequence number space and the X-axis represents time, and the slope of this curve gives the throughput over time. A section of this graph (zoomed in with xplot) is shown in Figure 5.2 illustrating the following features.

Figure 5.2: Time Sequence Graph #2
Image tsg2

Further zooming into the beginning of the connection with xplot we find Figure 5.3.

Figure 5.3: Time Sequence Graph #3
Image tsg3

Here, the SYN marks the sequence number and the time when a SYN packet was sent.

The graph shown in Figure 5.4 is a section of a TCP connection being closed.

Figure 5.4: Time Sequence Graph #4
Image tsg4

Here,

The following other symbols also occur in Time Sequence graphs :


Super-User 2003-08-29