Port Link Status Mode (STAT) LED

The port link status mode (STAT) LED displays the link status and activities of each port. Each unit within the stack will also display the local port status.

Refer to the following table to interpret the port link status mode LED.

Link Status Mode (STAT) LED During Normal Operation

LED Color Status of Hardware Recommended Action
Off The port does not have a valid link. None.
Steady green The link is up and there is no traffic. None.
Flashing green The link is up and traffic and packets are transmitted or received. None.
Steady amber In Error or Out Error.

Possible causes of errors that you should check and attempt to fix include:

  • External factors (such as faulty or loose cables, bad optics, and environmental electromagnetic factors).
  • Configuration issues (such as mismatch in duplex settings).

Clear stats CLI impacts the steady amber state; if no more errors exist, the port moves out of the steady amber state.

Flashing amber Possible reasons for flashing amber include:
  • UDLD is configured only on the local unit but not on the peer unit.
  • LACP ports are in "Blocking" state.
  • A port is in "Error-Disabled" state due to traffic-related issues.
Verify that your configuration is correct and check the traffic over the link.
Parent topic: Status Mode Selection Button and STATUS LEDs