BigIron RX Installation Guide 10953-1001811-01Connecting a BigIron RX Series switch 4Troubleshooting network connectionsAfter you cable the fiber optic modules, you can observe certain LEDs to determine if the networkconnections are functioning properly. Table 16 outlines the LEDs related to the networkconnections, the desired state of each LED, possible abnormal states of each LED, and what to doif an LED indicates an abnormal state.If a problem persists after taking these actions, contact Brocade’s technical support.TABLE 16 Network connection-related LED statesLED DesiredStateMeaning AbnormalstateMeaning or actionInterface moduleLink On A link is establishedwith the remote port.Off A link is not established with the remote port.You can do the following:• Verify that the connection to the othernetwork device has been properly made.Also, make certain that the other networkdevice is powered on and operatingcorrectly.• Verify that the transmit port on a BigIronRX Series switch is connected to thereceive port on the other network device,and that the receive port on the BigIronRX Series switch is connected to thetransmit port on the other networkdevice. If you are not certain, remove thetwo cable connectors from the portconnector and reinsert them in the portconnector, reversing their order.• Dust may have accumulated in the cableconnector or port connector. Forinformation about cleaning theconnectors, refer to “Cleaning fiber opticmodules” on page 108.• If the other actions do not resolve theproblem, try using a different port or adifferent cable.Active On orblinkingThe port istransmitting andreceiving user packets.Off for anextendedperiod.The port is not transmitting or receiving userpackets. You can do the following:• Check the Link LED to make sure the linkis still established with the remote port. Ifnot, take the actions described in theMeaning or Action column for the LinkLED.• Verify that the port has not been disabledthrough a configuration change. You canuse the CLI. If you have configured an IPaddress on the device, you also can usethe Web management interface orIronView Network Manager.
