HP Ethernet BL-c manual Troubleshooting

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The server blade enclosure is not powered up. Be sure that the server blade enclosure is powered up and all the power connections are intact.

There is a faulty LED. Check the console to see if the switch is booted.

The switch fuse is blown. Send for repair.

Health LED on the switch stays amber for more than 30 seconds and switch does not boot

Action:

The Standby Mode Timeout function is malfunctioning. Force the switch to reboot by pressing the Reset button.

No link LED appears, even after plugging the Category 5 cable in the RJ-45 connector of the external port

Action:

The cable is not properly plugged in. Check the cable at both ends to ensure that it is plugged in and seated properly.

The cable or connector heads are faulty. Replace the cable with another tested cable.

The RJ-45 connector on the switch or LED is faulty.

o After checking and replacing the cable, if no link LED displays, check whether the port is transferring data. If yes, the LED is faulty. If no, it could be a faulty RJ-45 connector. Call a service representative.

o This could be caused by using a crossover cable instead of a straight through cable.

Cannot access the switch serial console interface using null modem connection from a PC Terminal Emulation Program

Action:

The null modem cable is faulty. Be sure the null modem cable, provided by HP with this hardware, was used.

The connection settings do not match the switch serial settings. Be sure that the PC Terminal Emulation session settings match the switch serial settings.

Troubleshooting 55

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Contents HP 110Gb Ethernet BL-c Switch User Guide Audience assumptions Contents Replacing a switch Acronyms and abbreviations Index Enterprise class performance FeaturesIntroduction Additional referencesIntroduction Configuration and management Switch redundancyDiagnostic tools Switch architecturePort Mapping Dual switches Redundant crosslinks Layer 2 switchingLayer 3 switching Supported technologiesSpanning Tree Protocol Ieee 802.1 Q-based VlanTftp support Store and forward switching schemePort mirroring Port trunking and load balancingRadius Jumbo frames SSH and SCPXModem Igmp SnoopingRedundant images in firmware Component identification 110Gb Ethernet Blade Switch front panelGreen-Link LED top Default settings Installing the switchPreparing for installation Planning the switch configurationUser, operator, and administrator access rights Switch securityConfiguring multiple switches Manually configuring a switchInstalling the switch Accessing the switch Logging on and configuring the switch Supporting software and special considerations Installing XFP transceiversInstalling the switch Replacing an existing switch Replacing a switchReplacing a switch Cables Regulatory compliance noticesClass a equipment ModificationsBsmi notice Japanese class a notice European Union regulatory noticeKorean class a notice Laser compliance General specifications Technical specificationsSTP Port names, VLANs, STP, trunking default settingsGeneral default settings Runtime switching software default settingsSTP Algorithm Setting Value Mstp UFD Igmp Performance specifications Physical and environmental specificationsCategory Specification Performing a serial download Serial upgrade of boot code firmware image procedureIntroduction Performing a serial download Performing a serial download 10G100.bin Serial upgrade of operating system firmware procedurePerforming a serial download Performing a serial download MIB overview Snmp MIBs supportSnmp Manager software Supported traps Supported MIBsSnmp MIBs support Preventing electrostatic discharge Electrostatic dischargeGrounding methods to prevent electrostatic discharge Standard RJ-45 receptacle/connector RJ-45 pin specificationRJ-45 signals RJ-45 pins DB-9 pins DB-9 signals Health LED on the switch is not on TroubleshootingTroubleshooting Bootp Page Troubleshooting Troubleshooting XFP transceiver port is disabled Switch configuration is corruptDownload fails after starting to download the firmware file Acronyms and abbreviations Ieee NTP SCP Index Switch self-test, troubleshooting