6-5
User Guide for the Catalyst Express 520 Switches
OL-12761-02
Chapter 6 Monitoring the Switch
Review the Front Panel View and the LEDs
Duplex In this mode, the port LEDs show the duplex mode (full duplex or half duplex) of the
ports.
Note: The 10/100/1000 ports operate only in full-duplex mode.
Off (dark) No link.
Solid light blue Port is in half-duplex mode.
Solid green Port is in full-duplex mode.
Speed In this mode, the port LEDs show the operating speed (10, 100, or 1000 Mb/s) of the
ports.
Off (dark) No link.
Solid light blue 10 Mb/s.
Solid green 100 Mb/s.
Blinking green 1000 Mb/s.
PoE In this mode, the port LEDs show the status of the Power over Ethernet (PoE) ports.
Off (dark) No power is allocated.
Solid green Power is allocated.
Blinking green and
amber
Power is denied to the port because providing power to the
attached device would exceed the switch power capacity.
Blinking amber Port is disabled due to a fault condition.
Smartports In this mode, each port image shows the applied port role.
For information about Smartports, see the Cisco Configuration Assistant online help.
Table 6-2 Port LEDs (continued)
Port Mode Explanation
