EXFO FTB-8500 Series for FTB-500 - Manual (Page 367)

TCP Throughput Tabs
Ethernet and Fibre Channel Application 353
TCP Throughput Configuration

Port: Enter the TCP port number. The default setting is 50201.
For the local unit, the specified TCP port will be used for the TCP
initialization algorithm with the remote unit. The following TCP
segments sent by the local unit will use the TCP port number replied by
the remote unit.

IP TOS/DS: Enter the IP TOS/DS value. Choices are 00 to FF. The
default setting is 00.
Binary: Displays the IP TOS/DS value in binary when enabled.
TCP Connection Status
TCP Session: Indicates the TCP session status:
--: Indicates that the test has not run yet.
In Progress: Indicates on the local unit that the TCP initialization
algorithm is in progress.
Waiting: Indicates on the remote unit that the test is started but the
TCP initialization algorithm is not completed.
Established: Indicates that the TCP session has been successfully
established between the local and remote units.
Closed: Indicates that either, no TCP initialization algorithm has been
received after 12 seconds, the remote unit has received and completed
the request to close the TCP session, or no data has been received at
the remote unit for 30 seconds.
Closing: Indicates on the local unit that the test on the remote unit has
just been stopped. The closing status lasts 3 seconds and switches to
the Closed status.
Remote IP not found: Indicates that the local unit didn’t received an
answer to the ARP request sent to the IP address of the remote unit.