HP J4903A User Manual - Page 59
Diagnostic Tips, Troubleshooting, Problem, Solution - replacement
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Troubleshooting Diagnosing with the LEDs Diagnostic Tips: Tip Problem Solution ➊ The switch is not 1. Verify the power cord is plugged into an active power source and to the switch. Make plugged into an sure these connections are snug. active AC power 2. Is an EPS/RPS device connected to the switch? If so, refer to your EPS/RPS documen- source, or the tation. switch's power supply may have failed and the EPS/RPS is powering the switch. 3. Try power cycling the switch by unplugging and plugging the power cord back in. 4. If the Power LED is still not on, verify that 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 booklet for more information. ➋ A switch Try power cycling the switch. If the fault indication reoccurs, the switch may have failed. hardware failure Call your HP-authorized LAN dealer, or use the electronic support services from HP to get has occurred. All assistance. See the Customer Support/Warranty booklet for more information. the LEDs will stay on indefinitely. ➌ The switch has 1. Try resetting the switch by pressing the Reset button on the front of the switch, or by experienced a power cycling the switch. software failure 2. If the fault indication reoccurs, attach a console to the switch (as indicated in chapter during self test. 2) and configure it to operate at 9600 baud. Then, reset the switch. Messages should appear on the console screen and in the console log identifying the error condition. You can view the console log at that point by selecting it from the console Main Menu. 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 booklet for more information. ➍ One or more of the switch Try disconnecting power from the switch and wait a few moments. Then reconnect the power to the switch and check the LEDs again. If the error indication reoccurs, one or cooling fans may more of the fans has failed. The Switch 2824 has three fans and the Switch 2848 has five have failed. fans and may continue to operate under this condition if the ambient temperature does not exceed normal room temperature, but for best operation, the switch should be replaced. Contact your HP-authorized LAN dealer, or use the electronic support services from HP to get assistance. See the Customer Support/Warranty booklet for more information. ➎ The network port Try power cycling the switch. If the fault indication reoccurs, the switch port may have for which the LED failed. Call your HP-authorized LAN dealer, or use the electronic support services from is blinking has HP to get assistance. See the Customer Support/Warranty booklet for more information. experienced a self test or initialization failure. If the port is a mini-GBIC, verify that it is one of the mini-GBICs supported by the switch. Unsupported mini-GBICs will be identified with this fault condition. The supported miniGBICs are listed in Chapter 2, "Installing the Switch" on page 2-7. The mini-GBICs are also tested when they are "hot-swapped"-installed or changed while the switch is powered on. To verify the port has failed, try removing and reinstalling the mini-GBIC without having to power off the switch. If the port fault indication reoccurs, you will have to replace the mini-GBIC. Troubleshooting 4-5