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| Sun Network 10GbE Switch 72p ### User’s Guide

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##### Front Panel LEDs

The network management status LEDs, link status LEDs, and switch status LEDs are located on the front of the switch chassis.

Note - The System Fault/Alarm (Yellow) and System OK (Green) LEDs cannot be on at the same time.

No. | Name | Color | Description
--- | --- | --- | ---
1 | Network Management Link and Activity | Green | Link (left): On – 10 or 100BASE-T link. Off – No link or link down. Activity (right): Off – No activity. Flashing – Packet activity.
2 | Locate | White | Helps locate the switch: Off – No locate command invoked. Fast blink – Occurs one second after the locate command is invoked.
3 | System Fault/Alarm | Yellow | Has two states: Off – No fault. On solid – A fault in the system is present and service action is required.
4 | System OK | Green | Has three states: Slow blink – During startup and shutdown sequences. On solid – System normal and operational. Off – Power interruption or system fault. Note: The off state could be triggered by one power supply being unplugged. The switch is still fully operational with only one power supply, but this LED is changed to the off state when one power supply is unplugged or not functioning correctly.
5 | SFP+ port Ethenet Link Status/Activity for 10GbE connection | Green | Has three states: Off – No link or activity on the SFP+ or QSFP port. On – A link has been established on the SFP+ or QSFP port. Blinking – There is activity on the SFP+ or QSFP port.
6 | QSFP four-port connector Ethenet Link Status/Activity for each 10GbE connection | Green | Has three states: Off – No link or activity on the SFP+ or QSFP port. On – A link has been established on the SFP+ or QSFP port. Blinking – There is activity on the SFP+ or QSFP port.

##### Related Information

- Rear Panel LEDs

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