Each port has one LED to indicate channel status. A channel selector switch enables you to display the status of individual channels. The selected channel is indicated in the display. The following table describes the states for the LED.
| QSFP28 Channel | Description |
|---|---|
| 0 (Default) - Port and all channels/lanes | (Default) Indicate the state of the port (all 4 lanes) |
| 1 | Indicates the link state and speed on Lane 1 |
| 2 | Indicates the link state and speed on Lane 2 |
| 3 | Indicates the link state and speed on Lane 3 |
| 4 | Indicates the link state and speed on Lane 4 |
The port/channel LED indications are listed below.
| LED | State | Description |
|---|---|---|
| Link/Activity | Off | No link or fault. Port is either administratively disabled or enabled but no transceiver is installed |
| White (solid) | Link at 100G | |
| White (fast blinking) | Activity at 100G | |
| Yellow (solid) | Link at 50G | |
| Yellow (fast blinking) | Activity at 50G | |
| Blue (solid) | Link at 40G | |
| Blue (fast blinking) | Activity at 40G | |
| Amber (solid) | Link at 25G | |
| Amber (fast blinking) | Activity at 25G | |
| Green (solid) | Link at 10G | |
| Green (fast blinking) | Activity at 10G | |
| Red (solid) | Fault detected |