Cisco Systems 3560-X, 3750-X manual Diagnosing Problems, Switch Post Results, Switch LEDs

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C H A P T E R 4

Troubleshooting

•Diagnosing Problems, page 4-1

•Resetting the Switch to the Factory Default Settings, page 4-5

•Finding the Switch Serial Number, page 4-6

•Replacing a Failed Data Stack Member (Catalyst 3750-X Switches), page 4-6

Diagnosing Problems

The switch LEDs provide troubleshooting information about the switch. They show POST failures, port-connectivity problems, and overall switch performance. You can also get statistics from the device manager, the CLI, or an SNMP workstation. See the software configuration guide, the switch command reference guide on Cisco.com, or the documentation that came with your SNMP application for details.

Switch POST Results

As the switch powers on, it begins the power-on self-test (POST), a series of tests that runs automatically to ensure that the switch functions properly. It might take several minutes for the switch to complete POST.

When the switch begins POST, the Status LED turns green. The System LED blinks green, and the other LEDs stay green.

When POST completes successfully, the System LED remains green. The XPS LED is green for some time and then returns to its operating status. The other LEDs turn off and return to their operating status. If the switch fails POST, the System and Ethernet management port LEDs turn amber.

Note POST failures are usually fatal. Contact your Cisco technical support representative if your switch does not pass POST.

Switch LEDs

Look at the port LEDs for information when troubleshooting the switch. See the “LEDs” section on page 1-8for descriptions of the LED colors and their meanings.

Catalyst 3750-X and 3560-X Switch Hardware Installation Guide

	OL-19593-01	4-1

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Contents Text Part Number OL-19593-01 Americas HeadquartersPage N T E N T S Attaching the Rack-Mount Brackets Where to Go Next SFP and SFP+ Module Cable Specifications B-5 Vii Viii Purpose Catalyst 3750-X switches Catalyst 3560-X switchesRelated Publications Obtaining Documentation and Submitting a Service Request Switch Model Cisco IOS Image Description Switch ModelsSwitch Part Number Description 10/100/1000 Ethernet Ports Front Panel DescriptionPoE+ Ports Network Modules Network Module Description SFP and SFP+ ModulesPart Number Description SFP-H10GB-CU1M= SFP-10G-LR=SFP-10G-SR= SFP-10G-LRM=XPS 1 LED LEDsSFP-H10GB-CU3M= SFP-H10GB-CU5M=Color XPS Status System LEDPort LEDs and Modes Color System StatusPort Mode Port LED Color Meaning Mode LED Port Mode DescriptionUSB Console LED Color PWR LED CatalystMaster LED Catalyst Stack LED CatalystColor PoE+ Status PoE+ LEDColor Network Module Link Status USB Mini-Type B PortNetwork Module LEDs G1 LED G3 LED G2/TE1 LED G4/TE2 LEDRear Panel Description Catalyst 3560-X Switch Rear PanelStackWise Ports RS-232 console is disabled RS-232 console is enabledRJ-45 Console Port LED USB Type a InterfaceSwitch Power Supply Modules Power Supply ModulesPort Port PoE+ Non-PoE+ Power Supply Module Switch1 DC-Power Supply Module LEDs Port Port PoE+ Non-PoE+ Power Supply Module SwitchPoE Option Port Switch AC-Power Supply Module LEDsFan Modules XPS ConnectorActive link to PC StackPower Connector Catalyst 3750-X SwitchesManagement Ports Ethernet Management PortInactive link Post failure Management OptionsUSB Mini-Type B Port Off AmberNetwork Configurations Safety Warnings Preparing for InstallationOL-19593-01 Statement 371-Power Cable and AC Adapter Installation GuidelinesTools and Equipment Planning a Switch Data Stack Catalyst 3750-X SwitchesSwitch Data Stacking Guidelines Data Stack Cabling Configurations3-meter StackWise Cables Example of a Data Stack with Half Bandwidth Connections Data Stack Bandwidth and Partitioning ExamplesPower On Sequence for Switch Data Stacks Planning a StackPower Stack Catalyst 3750-X SwitchesStackPower Stacking Guidelines StackPower Cabling Configurations CAB-XPS-58CM Part Number Cable Type LengthCAB-SPWR-30CM CAB-SPWR-150CM10 StackPower Ring Topology 253397 253398 StackPower Partitioning Examples Installing the SwitchRack-Mounting Switch Installation Installing the Switch 23/24-inch brackets, part number Inch brackets, part numberEtsi brackets, part number 18 Attaching Brackets for 19-inch Racks Attaching the Rack-Mount BracketsMounting the Switch in a Rack Mounting the Switch in a Rack 20 Attaching the Adhesive Pads for Table- or Shelf-Mounting Table- or Shelf-MountingAfter Installing the Switch Connecting to the StackWise Ports Catalyst 3750-X SwitchesConnecting to the StackPower Ports Catalyst 3750-X Switches Installing a Network Module in the Switch Connecting the StackPower Ports to the XPS-2200You need to supply a number-2 Phillips screwdriver Installing Network ModulesRemoving a Network Module Installing SFP and SFP+ Modules26 Installing an SFP Module in the Network Module Installing an SFP ModuleRemoving an SFP Module Connecting Devices to the Ethernet PortsPoE+ Port Connections 10/100/1000 Ethernet Port ConnectionsDevice Crossover Cable Where to Go Next Start an Snmp application such as the CiscoView application Power Supply Module Overview Power Supply and Fan Module InstallationC3KX-PWR-715WAC= DC power supply moduleBlank cover Release latch AC power supply module AC power cord connectorPower cord retainer AC OK LEDDC OK LED DC power supply module Grounding terminalExtraction handle Release handles Retainer clips Installation GuidelinesAC Power Supply Module LEDs DC Power Supply Module LEDsRemove the power cord from the power connector Installing an AC Power SupplyTurn off the power at its source Remove the power cord from the power cord retainerInserting the AC-Power Supply in the Switch Installing a DC Power SupplyEquipment That You Need Stripping the Ground Wire Grounding the SwitchSee the Installation Guidelines, Installing the DC Power Supply in the Switch11 Inserting the DC Power Supply in the Switch Wiring the DC Input Power Source13 DC Source a and Source B Connections with Common Ground Finding the Power Supply Module Serial Number15 715-W and 350-W AC Power Supply Module Serial Number Fan Module Fan Module OverviewFinding the Fan Module Serial Number Installing a Fan ModuleFan LED Retainer clip Exhaust vent Extraction handles 19 Fan Module Serial Number Switch Post Results Diagnosing ProblemsSwitch LEDs Link Status Switch ConnectionsBad or Damaged Cable Ethernet and Fiber CablesPoE Port Connections 10/100/1000 Port ConnectionsSFP Modules Spanning Tree Loops Switch PerformanceInterface Settings Ping End DeviceAutonegotiation and Network Interface Cards Resetting the Switch to the Factory Default SettingsCabling Distance Switch Serial Number Location Finding the Switch Serial NumberPhysical Specifications Switch SpecificationsEnvironmental Ranges Power Supply Module Specifications C3KX-PWR-350WAC Power SpecificationsC3KX-PWR-1100WAC C3KX-PWR-715WACAirflow 60 cfm Fan Module SpecificationsPhysical Specification Operating SpecificationGost Description SpecificationMIC China EMC certificationsOL-19593-01 10/100/1000 Ports Connector SpecificationsFigure B-2 10-Gigabit Ethernet CX1 Copper Connector example Gigabit Ethernet CX1 SFP+ Copper Connectors10/100 Ethernet Management Port Figure B-4 Simplex LC Cable ConnectorFigure B-7 10/100 Port Pinouts Console PortSFP and SFP+ Module Cable Specifications Cable and Adapter SpecificationsGLC-LH-SM GLC-T1000BASE-LX/LH MMF3Two Twisted-Pair Cable Pinouts Four Twisted-Pair Cable PinoutsDevice Switch Console RJ-45-to-DB-9 Port DTEIdentifying a Crossover Cable Console Port Adapter PinoutsDSR DTR CTS RTS Switch Console RJ-45-to-DB-25 Port DTEGND RxD TxDOL-19593-01 Accessing the CLI Through Express Setup Accessing the CLIAccessing the CLI Through a Console Port RJ-45 Console Port Use one of these options to access the CLIUSB Console Port Mode Installing the Cisco Microsoft Windows USB Device DriverInstalling the Cisco Microsoft Windows 2000 USB Driver Installing the Cisco Microsoft Windows XP USB DriverUsing the Add or Remove Programs utility Uninstalling the Cisco Microsoft Windows USB DriverIP Settings Entering the Initial Configuration InformationConfiguring the Setup Program Enter an enable password, and press Return These choices appear Console port Connectors and cables Described Connectors and cablesIN-2 Status Port mode Post results Speed Stack StackPowerPost Power-supply moduleProduct disposal warning XPS Connector Described LEDIN-6