The following sections describe the meanings of the LEDs on Summit X480 switches.
| Label or Type | Color/State | Meaning |
|---|---|---|
| MGMT | Blinking green (slow) | Normal operation |
| Blinking green (rapid) | Switch is booting; power-on self test (POST) is in progress. | |
| Blinking amber | Power-on self test (POST) failed. | |
| Off (FAN and PSU are also off.) | No external power is attached. | |
| Off (FAN and PSU are lit.) | Switch is booting. | |
| FAN | Steady green | Normal operation |
| Blinking green (rapid) | Power-on self test (POST) is in progress. | |
| Blinking amber | Failure | |
| Off | No power | |
| PSU-1 | Steady green | Normal operation |
| Blinking amber | Failure | |
| Off | No power; no power supply present. | |
| PSU-2 | Steady green | Normal operation |
| Blinking amber | Failure | |
| Off | No power; no power supply present. | |
| Stack Management 1 – 4 | Steady green | Link OK on the indicated stacking port. |
| Blinking green | Activity on the indicated stacking port. |
| 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 SummitStack 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. | |
| Ethernet Ports 1 – 24 or 1 – 48 |
Steady green | Link OK |
| Blinking green | Activity | |
| Off | No link; port is disabled. |
| Label or Type | Color/State | Meaning |
|---|---|---|
| Left LED | Blinking green | Activity |
| Off | No link; 10/100-Mbps link | |
| Right LED | Steady green | 1-Gbps link |
| Off | No link; 10/100-Mbps link |
| Label or Type | Color/State | Meaning |
|---|---|---|
| Stacking Port LED (on installed VIM) |
Steady green | Link OK |
| Blinking green | Activity | |
| XFP
Port LED (on installed VIM) |
Steady green | Link OK |
| Blinking green | Activity | |
| Off | Port is disabled. |