Check Point QUANTUM MAESTRO Manual page 43

Port LEDs on MHO-170
In MHO-170, the status of each pair of adjacent ports is indicated by two LEDs:
Example:
Port LED Behavior:
LED Behavior
Off
Steady green
Flashing green
Flashing amber
Port State
Link is down.
Link is up, but there is no traffic.
Link is up, and the traffic is flowing.
A problem with the link.
Action Required
Check the cable.
None.
None.
Check the cable, and replace if needed.
Quantum Maestro Getting Started Guide | 43
LEDs