Dell PowerConnect 2616 User's Guide - Page 16

www.dell.com | support.dell.com Table 2-1. Basic Troubleshooting (continued) Problem Probable Cause Link LED is not lighted. The cable is not securely connected to the switch or the attached device. The attached device is not configured correctly, or it is not powered on. The cable is damaged or not properly terminated. Corrective Action Ensure that the connectors are fully inserted into the ports of the switch and the attached device. Ensure that the attached device is powered on. Verify that the NIC on the attached device is operating properly. Test the cable. Try a known working cable. Ensure that the cables are terminated using TIA 568A or 568B standards. The cable's maximum distance has been exceeded. Mismatched duplex mode. Bad switch port. Link speed LED indicates a lower Incorrect cable grade. speed than expected. Damaged cable. The cable's maximum distance has been exceeded. 10Base-T, 100Base-T, and 1000Base-T cables have limitations for link lengths. Move the connected device closer to the switch and use a shorter cable. Ensure that all devices connected to the switch are configured to automatically detect and set port speed and duplex settings. Reconnect the connector for the affected link to a different switch port. Ensure that you are using Category 5 cable or better for all 10Base-T and 100Base-T links, or Category 5e for 1000Base-T links. Test any cables that have kinks, sharp bends, or appear to be damaged. 10Base-T, 100Base-T, and 1000Base-T cables have limitations for link lengths. Move the connected device closer to the switch and use a shorter cable. 16 Troubleshooting