Info. Panel

The Info. Panels lie on the bottom left/right corners of the GUI and Displays the left or right TCP's status information as well as statistics for the data transfer process undertaken by that TCP.

The Info. Panel is shown below.

Info. Panel Screenshot

The labels representing a TCP's status information define the TCP's -

State- The name of the state (i.e. ESTABLISHED, CLOSED, SYN-SENT etc.) that the TCP is in.
Action-What the TCP is currently doing (i.e. Transmitting, Waiting, Connecting etc.)
Last RTT- Most recently measured segment Round Trip Time (RTT).
Last RTO- The last Retransmission Timeout (RTO) value most recently calculated using the Last RTT value that is used to set retransmission timers for outgoing segments.

The labels representing statistics for the data transfer process undertaken by a TCP define -

Sent- The number of segments and data (bytes) sent (but not retransmitted) so far by this TCP.
Received- The number of segments and data (bytes) received by this TCP.
Retransmitted- The number of segments and data (bytes) retransmitted by this TCP
Lost- The total number of segments and data (bytes) sent/retransmitted by this TCP that was lost during propagation.

Note that "Data:" corresponds to the data carried by each segment while "Segments:" refers to the number of TCP segments. Since some segments do not carry data (i.e. pure ACKs), "Data:" may not match up to "Segments:" for the categories listed above.

For more information on the tags and labels present in the Info. Panel, please refer to Section 4.3.3 for Appendix 3 in the thesis.