40 Installing the Nortel Ethernet Routing SwitchShared SFP transceiver port LED state indicatorsThis section outlines the states indicated by the color and fluctuation cuesprovided by the Shared SFP Transceiver Port LEDs.Shared SFP transceiver Port LED state indicatorsLabel Color / Status DescriptionGreen / steady A transceiver is inserted into the port.In UseOff The port has no transceiver.Green / steady This link is operating normally.Green / blinking There is activity on the port.Green / slowblinkingThe port has been disabled by the software.LNK/ACTOff Indicates that the link has been lost.Note: The SFP Transceiver ports are shared. When a SFP Transceiveris inserted and the port has a link established, the corresponding frontpanel port is disabled. For more information on shared ports, refer tothe system configuration guide noted in "Related publications" (page12)on page 16.XFP transceiver port LED indicators (5530-24TFD only)The Nortel Ethernet Routing Switch 5530-24TFD contains two XFPTransceiver Ports with two LEDs labeled Tx (Transmit) and Rx (Receive)."XFP transceiver port LED state indicators" (page 40) outlines the port statesindicated by the color and fluctuation of the XFP Transceiver Port LEDs.XFP transceiver port LED state indicatorsLED Color / Status DescriptionTx Green / steadyRx Green / steadyLink established.Tx Green / blinking Transmit activity detected.Rx Green / blinking Receive activity detected.Tx Amber / steady Transmit activity enabled.Rx Amber / steady Fiber connected with signal present.Tx Amber / blinking XFP has been installed. Laser Transmitter OFF orXFP in Reset.The Amber LEDs are usually only used during the boot process. Under normaloperation, Green is the only color the XFP LED should emit.Nortel Ethernet Routing Switch 5500 SeriesInstallationNN47200-300 2.00 Standard5.0 7 July 2006Copyright © 2005 - 2006, Nortel Networks Nortel Networks Confidential.