Led Behavior - HP J4818A Installation And Getting Started Manual

Installing the Series 2300 and 2500 Switches
Installation Procedures
2.

LED Behavior:

2-8
Check the LEDs on the switch as described below.
switch port LEDs
Power and
Self Test LED
Fault LEDs
When the switch is powered on, it performs its diagnostic self test. Self
test takes approximately 40 seconds to complete.
During the self test:
• Initially, all the switch and port LEDs are on and stay on for most of
the duration of the self test.
• Most of the LEDs go off and then may come on again during phases
of the self test. For the duration of the self test, the Self Test LED stays
on.
When the self test completes successfully:
The Power and Fan Status LEDs remain on.
•
• The Fault and Self Test LEDs go off.
• The port LEDs on the front of the switch go into their normal opera-
tional mode:
If the ports are connected to active network devices, the Link
–
LEDs stay on and the Mode LEDs behave according to the mode
selected. In the default mode (Activity), the Mode LEDs should
flicker showing network activity on the port.
– If the ports are not connected to active network devices, the Link
and Mode LEDs will stay off.
If the LED display is different than what is described above, especially if
the Fault and Self Test LEDs stay on for more than 60 seconds or they start
blinking, the self test has not completed correctly. Refer to chapter 3,
"Troubleshooting" for diagnostic help.
!
!