![]() ![]() Port exhaustion may not occur on Unix systems due to the higher default connection rate in those operating systems. To avoid port exahustion and support high connection rates, reduce the TIME_WAIT value and increase the port range. When TCP/IP port exhaustion occurs, client port reservations cannot be made and errors will occur in client applications that attempt to connect to a server via TCP/IP sockets. On Windows systems, if all the available ephemeral ports are allocated to client applications then the client experiences a condition known as TCP/IP port exhaustion. A port is considered free when its yet to be assigned to a client, or was assigned and later released for re-use when the client connection terminated.Ī value 0 for this measure is something to be concerned about, particularly, on Windows systems. The value of this measure is the difference between the Total ports and the Ports in Use measures. Indicates the number of ports that are available for use. Indicates the total number of ports in the TCP/IP stack's predefined range of ports - i.e., in the pool of ephemeral ports. Indicate the number of ephemeral ports that are currently in use. Measurements made by the test Measurement
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