HP J4819A User Manual - Page 65

Troubleshooting Diagnosing with the LEDs Diagnostic Tips: Tip Number Problem Solution ➊ The power supplies 1. Verify the power cord is plugged into an active power source and to the switch. installed in the Ensure these connections are snug. switch are not plugged into active AC power sources, or the power supply may have failed. 2. Try power cycling the switch by unplugging and plugging the power cord back in. 3. If the Power LED is still not on, verify the AC power source works by plugging another device into the outlet. Or try plugging the switch into a different outlet or try a different power cord. If the power source and power cord are OK and this condition persists, the switch power supply may have failed. Call your HP-authorized LAN dealer, or use the electronic support services from HP to get assistance. See the Customer Support/ Warranty card for more information. ➋ A switch hardware Try power cycling the switch. If the fault indication reoccurs, the switch may have failure has failed. Call your HP-authorized LAN dealer, or use the electronic support services occurred. All the from HP to get assistance. See the Customer Support/Warranty card for more LEDs will stay on information. indefinitely. ➌ The switch has experienced a The failure may be just in the communications with a single module slot, or it might be more significant. Start a console session with the switch, and at the CLI prompt backplane failure issue the command show logging. In the event log that is displayed, there will be during self test. messages that describe the extent of the problem. If the problem is with individual slots, the remainder of the switch slots will be fully operational and can be used until you get a chance to replace the switch. If necessary to resolve the problem, contact your HP-authorized LAN dealer, or use the electronic support services from HP to get assistance. See the Customer Support/Warranty card for more information. ➍ The module The fact that the Link and Mode LEDs never are lit on the module indicates that it is installed in the slot a ProCurve Switch gl or vl module and should not be used in your xl switch. that corresponds to the letter that is flashing is an invalid module. Ensure you have installed an xl module in the slot. ProCurve gl and vl xl modules will fit in the slot, but they are not compatible with your ProCurve xl switch. Check to ensure the module has a magenta "xl module" symbol on it. Remove the module from the switch and replace it with an xl module, or recover the slot with the cover plate. You can remove and replace the module without having to power down the switch. Call your HP-authorized LAN dealer, or use the electronic support services from HP to get information on supported Switch xl modules. The modules that are available as of the printing of this manual are listed on page 1-10. Troubleshooting 4-5