HP J3177A, J3175A manual Resetting the Switch, Hp Bbs

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Troubleshooting

Troubleshooting

HP Customer Support Services

Resetting the Switch

You can reset the switch by unplugging and plugging back in the power cord; each switch does not have a reset button. By reinserting the power cord, the switch performs the power-on self-test. No configuration is changed.

HP Customer Support Services

If you are still having trouble with your switch, Hewlett-Packard offers support 24 hours a day, seven days a week through the use of automated electronic services including:

■the World Wide Web

■HP BBS

■HP FTP Library Service on the Internet

■CompuServe

■HP Network Phone-In Support (NPS)

■HP FIRST FAX Retrieval Service

See the perforated card at the beginning of this manual for information on how to use these services to get technical support.

Your HP-authorized network reseller can also provide you with assistance, both with services that they offer and with services offered by HP.

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Contents HP AdvanceStack Switch 208/224 Page HP Customer Support Services How to get the latest software/agent firmwareHP FTP Library Service World Wide WebAdditional HP Support Services HP First Fax Retrieval ServiceLocation Phone Number HP AdvanceStack Switch 208/224 Installation and Reference GuidePublication Number Contents Index Installing the Switch 208/224 Installing the Switch 208/224Installing the Switch 208/224 Installation StepsIncluded Parts Prepare the Installation Site Installation PrecautionsInstall Any Optional Modules Installing Modules100Base-T transceiver modules into the Switch 208/224 Installing TransceiversDo not install any 100VG transceiver modules in this slot Verify the Switch’s Operation When the self test completes successfully LED BehaviorMount the Switch Mounting the Switch in a Rack or CabinetInsert a screw into the top hole of a close 0.5-inch Install additional screw Mounting the Switch on a Wall Mounting the Switch on a Horizontal SurfaceConnect the Switch to a Power Source Using RJ-45 Connectors 10 Mbit/s and 100 Mbit/s ports Connect the Network Cables100Base-T Xcvr Slot To connectSwitch 208/224 Condition Diagnostic Tip InstallingSwitch 208T As a Segment SwitchSample Network Topologies Switch 224T PCs and peripherals As a Desktop SwitchServer Connecting to a Backbone Switch Fddi Campus Backbone Installing the Switch 208/224Switch Switch 224T Switch 208TWhere to Go From Here Cable ManagementSwitch 208/224 Description FeaturesSwitch 208/224 Description Front of the SwitchesNetwork Ports LEDs State MeaningManagement Module Features Management SlotBack of the Switches Power ConnectorsRedundant Power Supply RPS Connector Expansion SlotSwitch Operation Address Table OperationSimultaneous Network Communications Page Troubleshooting Solutions to Common ProblemsTroubleshooting Wrong network speed connected -- You have connected aLED Error Indications Diagnostic TipsTesting the Switch Diagnostic TestsTesting Twisted-Pair Cabling Testing End-to-End Network Communications Testing Switch-to-Device Network CommunicationsResetting the Switch HP BBSCables and Connectors Twisted-Pair Cable/Connector Pin-OutsCables and Connectors White/orange Fiber-Optic Cables Twisted-Pair Cable Pin AssignmentsTwisted-Pair Straight-Through Cable Twisted-Pair Cross-Over CableSpecifications PhysicalElectrical EnvironmentalConnectors SafetySpecifications ElectromagneticSafety and Regulatory Statements Mounting PrecautionsPower Precautions Safety and Regulatory StatementsGrounding Safety InformationServicing Informations concernant la sécurité Tible de causer des dommages à léquipementHinweise zur Sicherheit Considerazioni sulla sicurezza AttrezzatureConsideraciones sobre seguridad Resultar en averías al equipoSafety Information Japanese Regulatory Statements FCC Class a Statement for U.S.A. OnlyEuropean Community CanadaDeclaration of Conformity Index NumericsMounting switch on … 1-11 HP Redundant Power Supply RPS Rack Page Page 5966-5225