Auto Disable

If the configuration shows a port as enabled, but the device detects an error, the software shuts down that port. In other words, the device software disables the port because of a detected error condition.

When the device auto-disables a port, it effectively shuts down the port and the port blocks traffic. The port LED blinks green 3 times per period. In addition, the device generates a log entry listing the reason for the auto-disable after re-enabling the port.

This feature provides a recovery function which automatically enables an auto-disabled port after a user-defined time. The range of the recovery timer is 30 – 2,147,483 s. The function allows you to set the recovery timer per interface. The device allows you to enable port recovery for specific reasons. To recover the port automatically, set the reason and recovery timer. Default state: disabled

In the cases where the recovery timer is still counting down, the device allows the administrator to re-enable an auto disabled port with the “Reset” button.

The auto-disable function serves 2 purposes:

Configuration

Parameters

Meaning

“Link Flap”

Defines whether the device enables a port after a Link Flap condition produces a disable port action.

Possible values:

  • Selected

    Enables the ports after the user-defined time elapses.

  • Not selected (default setting)

    The ports remain disabled.

“CRC Error”

Defines whether the device enables a port after a CRC/Fragments condition produces a disable port action.

Possible values:

  • Selected

    Enables the ports after the user-defined time elapses.

  • Not selected (default setting)

    The ports remain disabled.

“Overload Detection”

Defines whether the device enables a port after an Overload Detection condition produces a disable port action.

Possible values:

  • Selected

    Enables the ports after the user-defined time elapses.

  • Not selected (default setting)

    The ports remain disabled.

Tab. “Configuration” frame in the Diagnostics:Ports:Auto Disable dialog


Table

Parameters

Meaning

“Port”

Shows the number of the device port to which the table entry relates.

“Reset Timer[s]”

Timer value in seconds after which the device reactivates a deactivated port.

Possible values:

  • 30...2147483

  • 0 (default setting)

    A value of 0 disables the timer.

“Remaining Time [s]”

Remaining time in seconds until the reactivation of the port.

“Component”

Shows the name of the component that caused the port to disable itself.

“Reason”

Shows the reason the port disabled itself.

“Active”

Shows the operational status of the function for the port.

Possible values:

  • Selected

    The Auto Disable function shuts down the port.

  • Not selected (default setting)

    The Auto Disable function is inactive for this port.

Tab. Table in the Diagnostics:Ports:Auto Disable dialog


Buttons

Button

Meaning

“Set”

Transfers the changes to the volatile memory (RAM) of the device. To permanently save the changes afterwards, you open the Basic Settings:Load/Save dialog and click “Save”.

“Reload”

Updates the fields with the values that are saved in the volatile memory (RAM) of the device.

“Reset”

Enables the port when disabled by the Port Monitor function.

“Help”

Opens the online help.

Tab. Buttons