info tcp

Purpose

Displays statistics relating to Transmission Control Protocol (TCP) activity. Statistics displayed are those gathered since the statistic tables were last cleared by rebooting the Digi device, and include data, event, and error counts. These statistics are useful in understanding how the device is operating and can be helpful in finding problems. In particular, if an error counter is increasing there may be a problem with the device.

To reset the statistics, reboot the device.

Required permissions

For Digi products with two or more users, set permissions to set permissions display=execute to use this command. See set permissions for details on setting user permissions for commands.

Syntax

info tcp

Example

#> info tcp

TCP statistics:

InSegments           : 88056           OutSegments          : 44427
InErrors             : 74              RetransmitSegments   : 285
EstabResets          : 47              OutResets            : 99
PassiveOpens         : 126             ActiveOpens          : 59
Established          : 4               AttemptFails         : 99

Output

Statistic	Description
InSegments	Number of segments received.
InErrors	Number of segments received with errors.
EstabResets	Number of established connections that have been reset.
PassiveOpens	Number of passive opens. In a passive open, the Digi device server is listening for a connection request from a client.
Established	Number of established connections.
OutSegments	Number of segments sent.
RetransmitSegments	Number of segments retransmitted. Segments are retransmitted when the server doesn't respond to a packet sent by the client. This is to handle packets that might get lost or discarded somewhere in the network.
OutResets	Number of outgoing connections that have been reset.
ActiveOpens	Number of active opens. In an active open, the Digi device server is initiating a connection request with a server.
Attempt Fails	Number of failed connection attempts.