The following sections describe the meanings of the LEDs on the ExtremeSwitching X620 series switches.
| Label or Type | Color/State | Meaning |
|---|---|---|
| M (Management) | Slow blinking green (1 Hz) | Normal operation |
| Fast blinking green (2 Hz) | Power-on self test (POST) in progress or Switch diagnostics are running |
|
| Steady green | POST passed: system is booting image | |
| Blinking amber | System is disabled: POST failed or system overheated | |
| Off | No external power is attached | |
| S1, S2 (Stack Management) | Steady green | Link OK on the indicated stacking port |
| Blinking green | Activity on the indicated stacking port | |
| FAN | Steady green | Normal operation |
| Blinking amber | Failure | |
| Off | No power | |
| Power Supply Unit (PSU) | Steady green | Normal operation |
| Blinking amber | Input or output power failure | |
| Off | Not present | |
| Redundant Power Supply (RPS) | Steady green | Normal operation |
| Blinking amber | When RPS is present, no supply from PSU | |
| Off | No RPS PSU is attached | |
| Ethernet Management Port | Blinking green (left) | Activity on the indicated port Link OK |
| Off (left) | Activity on the indicated port | |
| Steady green (right) | Link OK | |
| Off (right) | No link, or port disabled | |
|
Other ports |
Steady green | Link OK |
| Blinking green | Activity on the indicated port | |
| Off | No link, or port disabled |
| Label or Type | Color/State | Meaning |
|---|---|---|
|
Left digit (1) |
Reserved for future use. | |
|
Right digit (1 – 8) |
Indicates the position of this switch in the stack configuration |
|
|
Upper half blinking |
This switch is the stack master node |
|
|
Lower half blinking |
This switch is the stack backup node |
|
|
Lit steadily |
This switch is a standby node in the stack |
|