HP J4903A User Manual - Page 13

LEDs, Introducing the Switch, Switch LEDs, State, Meaning - configuration

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Introducing the Switch Introducing the Switch Front of the Switch LEDs Table 1-1. Switch LEDs Switch LEDs State Meaning Power On The switch is receiving power. (green) Off The switch is NOT receiving power. Fault (orange) Off Blinking* The normal state; indicates there are no fault conditions on the switch. A fault has occurred on the switch, one of the switch ports, or the fan. The Status LED for the component with the fault will blink simultaneously. If just the Fault LED is blinking, the switch could be attached to an RPS but not receiving power. On On briefly after the switch is powered on or reset, at the beginning of switch self test. If this LED is on for a prolonged time, the switch has encountered a fatal hardware failure, or has failed its self test. See chapter 4, "Troubleshooting" for more information. Test Off The normal operational state; the switch is not undergoing self test. (green) On The switch self test and initialization are in progress after the switch has been power cycled or reset . The switch is not operational until this LED goes off. The test LED also comes on briefly when you "hot swap" a mini-GBIC into the switch; the mini-GBIC is self tested when it is hot swapped. Blinking* A component of the switch has failed its self test. The status LED for that component, for example an RJ-45 port, and the switch Fault LED will blink simultaneously. Port LEDs (green - overlaid with the port number) Displays port link information, network activity information, whether the port is configured for fullduplex operation, or the speed of the connection depending on the LED Mode selected. See "LED Mode Select Button and Indicator LEDs" on the next page for more information. LED Mode Link View (4 green LEDs) Indicates that the port LEDs are displaying link information: • if the port LED is on, the port is enabled and receiving a link indication from the connected device. • if the port LED is off, the port has no active network cable connected, or is not receiving link beat or sufficient light. Otherwise, the port may have been disabled through the switch console or the web browser interface. • if the port LED is blinking* simultaneously with the Fault LED, the corresponding port has failed its self test. Act Indicates the port LEDs are displaying network activity information. FDx Indicates port LEDs are lit for ports in Full Duplex Mode. Off indicates half duplex. Spd Indicates the port LEDs are displaying the connection speed at which each port is operating: • if the port LED is off, the port is operating at 10 Mbps. • if the port LED is flashing**, the port is operating at 100 Mbps. • if the port LED is on continuously, the port is operating at 1000 Mbps. * The blinking behavior is an on/off cycle once every 1.6 seconds, approximately. 1-5

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1-5
Introducing the Switch
Front of the Switch
Introducing the Switch
LEDs
Table 1-1.
Switch LEDs
Switch LEDs
State
Meaning
Power
(green)
On
Off
The switch is receiving power.
The switch is NOT receiving power.
Fault
(orange)
Off
The normal state; indicates there are no fault conditions on the switch.
Blinking*
A fault has occurred on the switch, one of the switch ports, or the fan. The Status LED
for the component with the fault will blink simultaneously. If just the Fault LED is blinking,
the switch could be attached to an RPS but not receiving power.
On
On briefly after the switch is powered on or reset, at the beginning of switch self test.
If this LED is on for a prolonged time, the switch has encountered a fatal hardware
failure, or has failed its self test. See chapter 4, “Troubleshooting” for more information.
Test
(green)
Off
The normal operational state; the switch is not undergoing self test.
On
The switch self test and initialization are in progress after the switch has been power
cycled or reset . The switch is not operational until this LED goes off. The test LED also
comes on briefly when you “hot swap” a mini-GBIC into the switch; the mini-GBIC is
self tested when it is hot swapped.
Blinking*
A component of the switch has failed its self test. The status LED for that component,
for example an RJ-45 port, and the switch Fault LED will blink simultaneously.
Port LEDs
(green – over-
laid with the
port number)
Displays port link information, network activity information, whether the port is configured for full-
duplex operation, or the speed of the connection depending on the LED Mode selected. See “LED
Mode Select Button and Indicator LEDs” on the next page for more information.
LED Mode
View (4 green
LEDs)
Link
Indicates that the port LEDs are displaying link information:
•
if the port LED is on, the port is enabled and receiving a link indication from the
connected device.
•
if the port LED is off, the port has no active network cable connected, or is not
receiving link beat or sufficient light. Otherwise, the port may have been disabled
through the switch console or the web browser interface.
•
if the port LED is blinking* simultaneously with the Fault LED, the corresponding port
has failed its self test.
Act
Indicates the port LEDs are displaying network activity information.
FDx
Indicates port LEDs are lit for ports in Full Duplex Mode. Off indicates half duplex.
Spd
Indicates the port LEDs are displaying the connection speed at which each port is
operating:
•
if the port LED is off, the port is operating at 10 Mbps.
•
if the port LED is flashing**, the port is operating at 100 Mbps.
•
if the port LED is on continuously, the port is operating at 1000 Mbps.
* The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.