1-9
Introducing the Switch
Front of the Switch
Introducing the Switch
Figure 1-5. ProCurve 6600-24XG Switch
■ 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 indicates the port is displaying customer-specified 
information.
Reset Button
This button is for: 
■ Resetting the switch - When the switch is powered on. This action clears 
any temporary error conditions that may have occurred and executes the 
switch self test. 
■ Restoring Factory Default Configuration - When pressed with the 
Clear button in a specific pattern, any configuration changes you may have 
made through the switch console, the web browser interface, and SNMP 
management are removed, and the factory default configuration is 
restored to the switch. For the specific method to restore the factory 
default configuration, see “Restoring the Factory Default Configuration” 
on page 11, in the Troubleshooting chapter of this manual.
LED Mode select button 
and indicator LED
Port LEDs Link 
and Mode