1-12LED Status DescriptionSteady yellow Indicates port duplex mode.10/100/1000Base-T Auto-Sensing Ethernet Port Status LEDThe port mode LED and the 10/100/1000Base-T auto-sensing Ethernet port status LED togetherindicate the port operation status, as shown in Table 1-14.Table 1-14 10/100/1000Base-T auto-sensing Ethernet port LEDs descriptionStatusPort modeLEDEthernet portstatus LEDMeaningSteady greenThe port operates at the rate of 1000 Mbps; the LED is fastflashing when data is being sent and/or received on theport.YellowThe port operates at the rate of 10/100 Mbps; the LED isfast flashing when data is being sent and/or received on theport.Flashing yellow (3Hz) Power-on self test (POST) failed on the port.Steady green(rate mode)Off No link is present on the port.Steady greenThe port operates in full-duplex mode; the LED is fastflashing when data is being sent and/or received on theport.YellowThe port operates in half-duplex mode; the LED is fastflashing when data is being sent and/or received on theport.Flashing yellow (3Hz) POST failed on the port.Steady yellow(duplex mode)Off No link is present on the port.100/1000Base-X SFP Interface Status LEDTable 1-15 100/1000Base-X SFP interface status LEDs descriptionStatusInterfacemode LEDSFP interfacestatus LEDMeaningOff No link is present on the interface.Steady greenThe interface operates at the rate of 1000 Mbps; the LEDfast flashes when data is being sent and/or received on theinterface.Steady green(rate mode)Steady yellowThe interface operates at the rate of 100 Mbps; the LEDfast flashes when data is being sent and/or received on theinterface.