2-8
Installing the Switch
Installation Procedures
2. Check the LEDs on the switch as described below.
Figure 2-3. Checking the LEDs
When the switch is powered on, it performs its diagnostic self test. Self test
takes approximately 3 seconds to complete.
LED Behavior
During the self test:
• Initially, the Power LED and port LEDs are all off.
•The Power LED turns on, then all of the port LEDs turn on briefly
during the test.
When the self test completes successfully:
•The Power LED remains on.
•The port Link/Act and Speed LEDs on the front of the switch go into
their normal operational mode:
– If the ports are connected to active network devices, the Link/Act
LEDs stay on or may be blinking to indicate port activity. The
Speed LEDs turn on for 1000 Mbps links or stay off for 10/100
Mbps links.
– If the ports are not connected to active network devices, the Link/
Act and Speed LEDs will stay off.
If the LED display is different than what is described above, the self test
has not completed correctly. Refer to chapter 4, “Troubleshooting” for
diagnostic help.
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