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LED Indicators

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LED Mode select button and indicator LEDs

The operation of the Mode LED is controlled by the LED Mode select button, and the current setting is indicated by the LED Mode indicator LEDs near the button. Press the LED Mode select button to step from one view mode to the next.
Figure 1: HP ProCurve 2910al-24G/48G Switch
1 - Expansion module LED
2 - Port LEDs link and mode
3 - LED mode select button and indicator LEDs
Figure 2: HP ProCurve 2910al-24G-PoE/48G-PoE+ Switch
1 - Expansion module LEDs
2 - Port LEDs link and mode
3 - LED mode select button and indicator LEDs
  • The PoE+ switches have an additional mode, PoE. In PoE mode, the Link LED indicates the PoE configuration for the port:
    • On if PoE is enabled on the port
    • Off if PoE is disabled on the port
  • Each port has a Link LED. If it is lit, the port has a link. If the Link LED is Blinking, the port has failed its self test. The Fault and Self Test LEDs will be Blinking simultaneously.
  • If the Activity (Act) indicator LED is lit, each port LED displays activity information for the associated port—it flickers as network traffic is received and transmitted through the port.
  • If the Full Duplex (FDx) indicator LED is lit, the port LEDs light for those ports that are operating in full duplex.
  • If the Speed (Spd) indicator LED is lit, the port LEDs behave as follows to indicate the connection speed for the port:
    • Off = 10 Mbps
    • Blinking = 100 Mbps (the Blinking behavior is a repeated on/off cycle once every 0.8 sec.)
    • On = 1000 Mbps
  • The Usr Mode LED is reserved for future development.
  • If the PoE indicator LED is lit, the Link and Mode LEDs indicate PoE status:
    Link LED :
    • On = PoE is enabled on this port
    • Off = PoE is disabled on this port
    • Slow Blinking = Internal PoE fault on this port. or has been denied power
    • Fast Blinking = This port is denied PoE power or has an external load fault
    Mode LED :
    • On = PoE power is be supplied on this port
    • On = PoE power is be supplied on this port

Switch LEDs

Switch LEDsMeaning
Power (green)
  • On :
    The switch is receiving power.
  • Off :
    The switch is NOT receiving power.
Fault (orange)
  • Off :
    It is a normal state which indicates there are no fault conditions on the switch.
  • Blinking1:
    A fault has occurred on the switch either in one of the switch ports, module in the rear of the switch, or the fan. The Status LED for the component with the fault will blink simultaneously.
  • On :
    It is 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.
Locator (Blue)
  • On/ Blinking/ Off :
    The Locator LED is used to locate a specific chassis in a area full of chassis. The LED can be set to be on solid or blink for a specified number of minutes (1-1440). The default is 30 minutes. Use the command chassislocate.
Test (green/orange)
  • Off :
    This is the normal operational state and the switch is not undergoing self test.
  • On green :
    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 Self 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 orange1:
    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/orange – Link and Mode)
  • Link :
    Indicates 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, the web browser interface, or ProCurve Manager.
    if the port LED is Blinking orange 1 simultaneously with the Fault LED, the corresponding port has failed its self test.
  • Mode :
    The operation of the Mode LED is controlled by the LED Mode select button, and the current setting is indicated by the LED Mode indicator LEDs near the button. Press the LED Mode Select button to step from one view mode to the next. The default view is Activity (Act).
LED Mode View (green LEDs)
  • 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 Blinking, the port is operating at 100 Mbps.
    • if the port LED is ON continuously, the port is operating at 1000 Mbps.
  • PoE :
    • If the Mode LED is ON the port is providing PoE power.
    • If the Mode LED is OFF the port is not providing PoE power.
    • If the Link LED is ON the port is enabled for PoE.
    • If the Link LED is OFF the port is disabled for PoE.
    • If the Link LED is Blinking, the port has an error or the port is denied power due to insufficient power.
  • Usr :
    Reserved for future development.
Mdl (Module Status, green)
  • On :
    Expansion module is plugged into expansion slot and operating correctly.
  • Blinking :
    Expansion module is plugged into expansion slot but has experienced a fault.
  • Off :
    Expansion module is not plugged into expansion slot.
RPS Status (green)
  • On :
    Normal operation. RPS is connected and operating correctly. RPS could be powering the unit.
  • Blinking :
    RPS is connected but has experienced a fault.
  • Off :
    RPS is not connected or is not powered on.
EPS Status (green)
  • On :
    Connected to an External Power Supply, and receiving power.
  • Blinking :
    The External Power Supply is connected but has experienced a fault or is unplugged.
  • Off :
    The switch is not connected to an EPS.
Fan Status (green)
  • On :
    Normal operation, all fans are ok.
  • Blinking1:
    One of the unit’s fans has failed. The switch Fault LED will be blinking simultaneously.
PoE Status
  • On :
    If any ports are supplying PoE power.
  • Off :
    If no ports are supplying PoE power. Should be OFF only during the boot process.
  • Blinking1:
    If any port has a internal hardware failure.
  • Blinking2 :
    If any port is denied PoE power or detecting an external PD fault.
Temp (green/Orange)
  • Off :
    Switch temperature is normal.
  • Blinking1 :
    An over temperature condition has been detected.
Auxiliary (green/ orange).

Click here to go to the Management and Configuration Guide for more information.
  • Blinking green1:
    Indicates the switch is processing a USB command file.
  • On green :
    The switch has finished processing the USB command file successfully.
  • Blinking orange2:
    Indicates an error condition.
  • Off :
    Indicates that no USB device has been inserted, or that the inserted USB device cannot be recognized, or that no command file can be found on the inserted USB device.
NOTE:1 : The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.2 : The blinking behavior is an on/off cycle once every 0.8 seconds, approximately.

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