HP GbE2c manual Troubleshooting, Configured on the switch, Health LED on the switch is not on

Page 47

Troubleshooting

In this section

 

Forgotten administrator user name and password that was configured on the switch

47

Health LED on the switch is not on

47

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

48

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

48

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

 

Program

48

Error message that the switch failed to complete the system self-testing appears on the serial console screen

48

The switch fails to get its IP settings from the BOOTP server, even though by default it is configured for BOOTP 49

The keyboard locks up when using HyperTerminal to log on to the switch through the console interface

49

Cannot connect to the switch console interface remotely using Telnet

49

Password is not accepted by the switch using the remote console interface immediately after a reboot

49

Cannot connect to the switch console interface remotely using SSH

49

Cannot connect to the switch SNMP interface

50

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

 

destination device

50

Cannot connect to the switch remotely using the Web interface

50

Cannot enable a port in multiple VLANs while configuring VLANS

51

The switch does not let the user enable two adjacent ports into two different VLANs while assigning the ports to

 

VLANs

51

While using TFTP to download firmware, the switch fails to connect to the TFTP server, or after connection the

 

download fails

51

The switch fails to connect to the TFTP server while using TFTP to download or upload a configuration file, or after

connection the download or upload fails

51

The console screen displays a message to change the baud rate for the terminal emulation session for XModem

 

transfer after forcing the switch into the download mode, and does not display CCCC

52

The download fails after starting to download the firmware file

52

The switch configuration is corrupt

52

Forgotten administrator user name and password that was

configured on the switch

 

Action:

 

Call HP technical support at 1-800-652-6672, or call a service representative to get a backdoor

 

password.

 

Health LED on the switch is not on

 

Action:

 

The switch is not seated properly. Be sure that the switch is inserted completely and seated properly.

Troubleshooting 47

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Contents May 2006 First Edition Part Number Audience assumptions Contents Replacing and upgrading the switch Acronyms and abbreviations Index Additional references FeaturesIntroduction OverviewIntroduction Configuration and management Switch redundancyRedundant crosslinks Switch architectureDiagnostic tools Port Mapping Dual switchesIeee 802.1 Q-based Vlan Layer 2 switchingSupported technologies Redundant paths to server baysTftp support Store and forward switching schemePort mirroring Port trunking and load balancingNTP Igmp Snooping Auto-negotiation of duplex mode and speedSSH and SCP XModemRear panel External componentsRedundant images in firmware Connectors Default settings Installing the switchPlanning the switch configuration User, operator, and administrator access rights Switch securityPreparing for installation Installing the switchManually configuring a switch Configuring multiple switchesInstalling the switch Accessing the switchLogging on and configuring the switch Supporting software and special considerations Cabling the switchReplacing an existing switch Replacing and upgrading the switchReplacing and upgrading the 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 specificationsGeneral default settings Runtime switching software default settingsSTP Page Mstp UFD Igmp Port names, VLANs, STP, trunking default settings Performance specifications Physical and environmental specificationsPage Introduction Serial upgrade of boot code firmware image procedurePerforming a serial download Performing a serial download Serial upgrade of operating system firmware procedure Performing a serial download Performing a serial download Snmp Manager software Snmp MIBs supportMIB overview Supported traps Supported MIBsSnmp MIBs support Grounding methods to prevent electrostatic discharge Electrostatic dischargePreventing electrostatic discharge Standard RJ-45 receptacle/connector RJ-45 pin specificationHealth LED on the switch is not on TroubleshootingConfigured on the switch Action Action Cannot connect to the switch Snmp interface Vlans Cannot enable a port in multiple VLANs while configuringDownload fails after starting to download the firmware file Switch configuration is corruptAcronyms and abbreviations LAN OSI UDP Index Snmp MIBs, supported Snmp traps, supported
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GbE2c specifications

The HP GbE2c is a high-performance Ethernet Switch designed to meet the increasing demands of data center environments. As a critical component in Hewlett-Packard's networking lineup, the GbE2c provides a seamless blend of speed, reliability, and advanced networking capabilities, making it an essential tool for enterprises aiming to enhance their network infrastructure.

One of the standout features of the HP GbE2c is its support for Gigabit Ethernet, which allows for high-speed data transmission and reduced latency. This switch is designed to support the growing bandwidth needs of modern applications, ensuring that data is transmitted quickly and efficiently across the network. The GbE2c is particularly beneficial for organizations implementing virtualization technologies, as its Gigabit interfaces help in optimizing data flow between virtual machines.

The GbE2c also incorporates advanced Layer 2 and Layer 3 switching capabilities. This ensures that it can handle both basic and more complex networking tasks, such as routing traffic between different VLANs and enabling Internet Protocol (IP) addressing. The switch supports various protocols, enabling seamless integration into a wide range of network environments.

Additionally, the HP GbE2c is equipped with a robust management system that allows network administrators to easily configure and monitor network settings. With its user-friendly interface, administrators can gain insights into traffic patterns, performance metrics, and potential issues, helping to maintain optimal network performance.

Power efficiency is another key characteristic of the HP GbE2c. The switch is designed to minimize power consumption without sacrificing performance, making it a more sustainable choice for data centers aiming to reduce their carbon footprint. This energy-efficient design is crucial for enterprises looking to lower operational costs while maintaining a high level of service.

The HP GbE2c also boasts high availability features, including redundant power supplies and failover options, ensuring that the network remains operational even in the event of a component failure. This reliability is critical for businesses that require uninterrupted network access for their daily operations.

In summary, the HP GbE2c Ethernet Switch combines speed, versatility, and efficiency, making it an ideal choice for businesses seeking to enhance their networking capabilities. Its robust feature set, advanced management options, and focus on energy efficiency position it as a top-tier solution in the competitive networking landscape. Organizations can rely on the GbE2c to deliver high performance and reliability, thus meeting the demands of today's data-intensive environments.