The following sections describe the meanings of the LEDs on Summit X250e switches.
| Label or Type | Color/State | Meaning |
|---|---|---|
| MGMT | Blinking green (fast) | Power-on self-test (POST) in progress |
| Steady green | POST passed. System is booting image. | |
| Blinking green (slow) | Normal operation. | |
| Blinking amber |
Switch diagnostics are running. or System is disabled. POST failed or system overheated. |
|
| Off | No external power attached | |
| FAN | Steady green | Normal operation |
| Blinking amber | Fan failure. Switch will continue to operate unless it overheats. | |
| Off | No power | |
|
PSU-I (Internal power supply) |
Steady green | Normal operation |
| Blinking amber | Failure | |
| Off | No power | |
|
PSU-E (External power supply) |
Steady green | Normal operation |
| Blinking amber | Failure | |
| Off | No external power attached | |
|
Port number 1 – 24 or 1 – 48 |
Steady green | Link is OK. |
| Blinking green | Port is transmitting packets. | |
| Off | Link is not present, or port is disabled. | |
|
Port number 25, 26 or 49, 50 (Shared ports) |
Steady green | Link is OK. |
| Blinking green | Port is transmitting packets. | |
| Off | Link is not present, or port is disabled. | |
| Stack 1, Stack 2 | Steady green | Link OK on the indicated stacking port. |
| Blinking green | Activity on the indicated stacking port. | |
| Stack Number Indicator | Off | This switch is not in stacking mode. |
| Top half of number blinking | This switch is the stack master. | |
| Lower half of number blinking | This switch is the stack backup. | |
| Number lights steadily | This switch is a standby switch (neither the master nor the backup). |
| Label or Type | Color/State | Meaning |
|---|---|---|
| All front-panel ports | Steady green | Link OK. port not powered. |
| Steady amber | Link OK, port is powered, no traffic | |
| Blinking green | Link OK, transmitting packets, port not powered. | |
| Blinking amber | Link OK, transmitting packets, port is powered. | |
| Slow blinking amber | No link or disabled port, port is powered | |
| Alternating amber and green | Port has a power fault. | |
| Off | Port is not powered, has no link, or is disabled. |
| Label or Type | Color/State | Meaning |
|---|---|---|
| Management Port | Right LED: Steady green | Link OK |
| Left LED: Blinking green | Activity | |
| Both LEDs off | Link is not present. | |
| Stack Port 1, Stack Port 2 | Steady green | Link OK |
| Blinking green | Activity | |
| Off | No link |