Chapter 5
| Switch Management
Understanding the Switch Status LEDs
– 25 –
Understanding the Switch Status LEDs
The switch includes LED indicators on the front panel that display system and port
status. Understanding the LED states will help you monitor switch operation and
alert you to any problems.
Figure 11: System and Port Status LEDs
(
Ports 1-24 Link/Activity LEDs.
System status LEDs.
Ports 25-28 Link/Activity LEDs.
Table 4: System Status LEDs
LED
Condition
Status
PWR
On Green
Internal power operating normally.
Off
No AC power is connected or the internal power supply
has failed.
DIAG
(Diagnostic)
On Green
The system diagnostic test has completed successfully.
On Amber
System diagnostic in progress or the PoE button is pressed
down.
Blinking Amber
The system self-diagnostic test has detected a fault.
Blinking Amber and
Green
The switch system is booting up.
Table 5: Port Status LEDs
LED
Condition
Status
1000BASE-T RJ-45 Ports (1-24)
Link/Activity
On/Blinking Amber
Port has a valid 10/100 Mbps link. Blinking indicates
traffic on the port.
On/Blinking Green
Port has a valid 1000 Mbps link. Blinking indicates traffic
on the port.
Off
The link is down.
3
2
1
1
3
2