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The port LED on a switch has changed its color to solid green. What does it mean?
the port is operational
the port is administratively shutdown
the port cannot transmit nor receive frames
the port is in blocking mode
If the LED is green in color, a link or segment is present; ports are operational. If the LED is blinking green in color, the link or segment is currently receiving and sending data. If the LED is alternating green-amber in color, there is a link/segment failure. If the port status LED of a switch is amber in color, the port is in blocking mode and is not forwarding data (typically, ports remain in this state for 30 seconds after being activated). If the LED is blinking-amber in color, the port is in blocking mode to prevent loops in the forwarding domain. And, if the port status LED is off, either the port is administratively shutdown or there is no link/segment present.
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