HP Ethernet BL-c manual Troubleshooting

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The port activity LEDs continuously indicate activity after connecting more than one port to another switch or destination device

Action:

Because there are multiple links across this device and the destination device, they form loops, which cause broadcast storms. Enable STP for multiple links. This setting prevents loops and maintains standby links for resilience in case of primary link failure.

Cannot connect to the switch remotely using the Web interface

Action:

The switch IP address is not configured or correct.

o From the serial console interface, be sure that the switch IP address is configured and valid on the network.

o Use the correct IP address to establish the Web connection with the switch.

Access to the switch using the Web interface is disabled. From the serial console interface, be sure that the Web interface is enabled.

The Proxy server settings are configured on the Internet browser and the proxy server does not know the switch IP address. Disable the manual proxy settings on the Web browser and let it automatically find Web servers using the IP address.

The management network address/mask (if used) does not contain the IP address of the management station. From the serial console interface, be sure that the management network address/mask contains the IP address of the management station.

Cannot enable a port in multiple VLANs while configuring VLANS

Action:

A port is part of only one VLAN unless the port is a tagged port. Be sure that the port is enabled as a tagged port.

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Contents HP 110Gb Ethernet BL-c Switch User Guide Audience assumptions Contents Replacing a switch Acronyms and abbreviations Index Additional references FeaturesIntroduction Enterprise class performanceIntroduction Switch redundancy Configuration and managementDiagnostic tools Switch architecturePort Mapping Dual switches Supported technologies Layer 2 switchingLayer 3 switching Redundant crosslinksIeee 802.1 Q-based Vlan Spanning Tree ProtocolPort trunking and load balancing Store and forward switching schemePort mirroring Tftp supportRadius Igmp Snooping SSH and SCPXModem Jumbo framesRedundant images in firmware 110Gb Ethernet Blade Switch front panel Component identificationGreen-Link LED top Planning the switch configuration Installing the switchPreparing for installation Default settingsSwitch security User, operator, and administrator access rightsManually configuring a switch Configuring multiple switchesInstalling the switch Accessing the switch Logging on and configuring the switch Installing XFP transceivers Supporting software and special considerationsInstalling the switch Replacing a switch Replacing an existing switchReplacing a switch Modifications Regulatory compliance noticesClass a equipment CablesEuropean Union regulatory notice Bsmi notice Japanese class a noticeKorean class a notice Laser compliance Technical specifications General specificationsPort names, VLANs, STP, trunking default settings STPRuntime switching software default settings General default settingsSTP Algorithm Setting Value Mstp UFD Igmp Physical and environmental specifications Performance specificationsCategory Specification Performing a serial download Serial upgrade of boot code firmware image procedureIntroduction Performing a serial download Performing a serial download Serial upgrade of operating system firmware procedure 10G100.binPerforming a serial download Performing a serial download MIB overview Snmp MIBs supportSnmp Manager software Supported MIBs Supported trapsSnmp MIBs support Preventing electrostatic discharge Electrostatic dischargeGrounding methods to prevent electrostatic discharge RJ-45 pin specification Standard RJ-45 receptacle/connectorRJ-45 signals RJ-45 pins DB-9 pins DB-9 signals Troubleshooting Health LED on the switch is not onTroubleshooting 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