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"ZTin" interface appears after clean install/reversion to factory defaults Technical Level
  • After clean install/reversion to factory defaults, an additional network interface named "ZTin" appears on the device.
    • The interface appears only on clish "show interfaces."
    • The interface does not appear in ifconfig.
    • The interface disappears after after First Time Wizard procedure.

When a machine is freshly installed (ISOMorhpic / Factory default), a process called ZeroTouch allows you to pull configurations from the ZeroTouch portal and configure the machine.

The ZeroTouch process creates a virtual interface for its own use called "ZTin," This is an expected behavior. 

When the ZeroTouch process finishes (either by pulling configurations from the portal / or when the user runs the First Time Wizard), the virtual interface is removed.

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