Cisco Systems 3560-C 10/100 and 10/100/1000 Port Connections, 10/100 PoE or PoE+ Port Connections

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Chapter 3 Troubleshooting

Diagnosing Problems

10/100 and 10/100/1000 Port Connections

A port appears to malfunction:

•Verify the status of all ports. See Table 1-7 on page 1-14for descriptions of the LEDs and their meanings.

•Use the show interfaces privileged EXEC command to see if the port is error-disabled, disabled, or shut down. Re-enable the port if necessary.

•Verify the cable type. See Appendix B, “Connector and Cable Specifications.”

10/100 PoE or PoE+ Port Connections

A powered device connected to a PoE or PoE+ port does not receive power:

•Verify the status of all the ports. See Table 1-7for descriptions of the LEDs and their meanings.

•Use the show interfaces privileged EXEC command to see if the port is error-disabled, disabled, or shutdown. Re-enable the port if necessary.

•Verify the cable type. Many legacy powered devices, including older Cisco IP phones and access points that do not fully support 802.3af might not support PoE when connected to the switch by a crossover cable. Replace the crossover cable with a straight-through cable.

Caution Noncompliant cabling or powered devices can cause a PoE port fault. Use only compliant cabling to connect Cisco prestandard IP Phones, and wireless access points, or 802.3af-compliant devices.

SFP Module

Use only Cisco SFP modules. Each Cisco module has an internal serial EEPROM that is encoded with security information. This encoding verifies that the module meets the requirements for the switch.

•Inspect the SFP module. Exchange the suspect module with a known good module.

•Verify that the module is supported on this platform. (The switch release notes on Cisco.com list the SFP modules that the switch supports.)

•Use the show interfaces privileged EXEC command to see if the port or module is error-disabled, disabled, or shutdown. Re-enable the port if needed.

•Make sure that all fiber-optic connections are clean and securely connected.

Interface Settings

Verify that the interface is not disabled or powered off. If an interface is manually shut down on either side of the link, it does not come up until you re-enable the interface. Use the show interfaces privileged EXEC command to see if the interface is error-disabled, disabled, or shut down on either side of the connection. If needed, re-enable the interface.

Ping End Device

Ping from the directly connected switch first, and then work your way back port by port, interface by interface, trunk by trunk, until you find the source of the connectivity issue. Make sure that each switch can identify the end device MAC address in its Content-Addressable Memory (CAM) table.

Catalyst 3560-C and 2960-C Switch Hardware Installation Guide

 

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Contents Text Part Number OL-23803-02 Americas HeadquartersPage N T E N T S Switch Installation Switch LEDs OL-23803-02 Preface Related Publications Obtaining Documentation and Submitting a Service RequestSwitch Model Description Switch ModelsFront Panel 3 4 Catalyst 3560CPD-8PT-S Front Panel View 10/100 and 10/100/1000 Fast Ethernet Downlink Ports PoE Ports Switches with PoE PortsPoE Pass-Through PoE Pass-Through PoE Budgeting for the Catalyst 2960CPD-8PT-L Dual-Purpose Ports USB Type a PortSFP Modules GLC-FE-100FX= GLC-FE-100LX= GLC-FE-100BX-D=USB Mini-Type B Port Management PortsLEDs Switch Panel LEDsConsole LEDs System LEDColor System Status Color DescriptionPort status Port status. This is the default mode Port Mode DescriptionModes for Port LEDs Port LEDsColor Meaning PoE LEDDual-Purpose Port LEDs Rear Panel Security slot Power adapter connector Reset buttonAuxiliary power adapter Internal Power SupplyAuxiliary Power Adapter Security Slots Reset ButtonManagement Options Cisco IOS CLI Network ConfigurationsPreparing for Installation Switch InstallationStatement Installation Guidelines Equipment That You Supply Powering the SwitchBox Contents Mounting the Switch Verifying Switch OperationDesk- or Shelf-Mounting On a Desk or Shelf without Mounting ScrewsDesk, Shelf, or Wall with Mounting Screws Installing the Mounting Screws on Top of a Desk or a Shelf Under the Desk- or Shelf-Mounting Mounting the Switch on Top of a Desk or ShelfDesk or shelf Screws Screw template Adhesive Installing the Mounting Screws Under a Desk or ShelfDesk or shelf Slides on this way Wall-MountingLocation of the Mounting Holes on the Switch 77 in .49 cm 72 in .44 cm 46. 62 in .19 cm SwitchInstalling the Mounting Screws on the Wall Mounting Tray with Screws With a Mounting TrayInstalling the Switch on the Mounting Tray Switch Mounting tray Sliding direction DeskMounting Tray with a Magnet Switch Number-10 Phillips pan-head screws11 Placing the Switch on the Mounting Tray Place the switch on the mounting tray. See Figure13 Wall-Mounting with a Magnet Phillips flat-head screw Attaching Brackets to the SwitchA Rack 15 Attaching the 23-inch Brackets for Rack-Mounting Mounting the Switch in a RackPlace the switch on the DIN rail mount. See Figure Attaching the DIN-Mount Tray to the SwitchSwitch DIN rail mount On a DIN Rail18 Securing the DIN-Mount Tray to the Switch Mounting the Switch on a DIN Rail19 Mounting the Switch on a DIN Rail Removing the Switch from a DIN Rail Switch Reset button cover Installing a Cover for the Reset Button Optional23 Inserting the Retainer through the Lanced Loop Installing the Power Cord Retainer OptionalSlide the retainer through the first latch. See Figure AC power cord Latches Sleeve for thin power cords26 Sleeve Around the Power Cord Washer Installing the Cable Guard Optional29 Attaching the Cable Guard to the Switch 31 Attaching the Cables to the Switch Number-8 Phillips wood screws Desk or shelf After Installing the SwitchInstalling SFP Modules TX and which is receive RX Removing SFP ModulesInsert a dust plug into the optical ports of the SFP module Grasp the SFP module, and carefully remove it from the slotBale clasp Connecting Devices to the Ethernet PortsConnecting to the 10/100 and 10/100/1000 Ports Device Crossover Cable Connecting to the PoE PortsWhere to Go Next OL-23803-02 Switch Post Results Diagnosing ProblemsSwitch Connections Switch LEDsBad or Damaged Cable Ethernet and Fiber-Optic Cables10/100 and 10/100/1000 Port Connections Interface Settings10/100 PoE or PoE+ Port Connections SFP ModuleSpanning Tree Loops Switch PerformanceSpeed, Duplex, and Autonegotiation Autonegotiation and Network Interface CardsFinding the Switch Serial Number Resetting the SwitchSerial Number Location for the Catalyst 3560CPD-8PT-S Switch 330039 OL-23803-02 Environmental Ranges Technical SpecificationsEnvironmental Ranges Physical Specifications Power Requirements Table A-2 Catalyst 3560-C and 2960-C Switch Specifications Available PoE SwitchOL-23803-02 10/100 and 10/100/1000 Ports Connector SpecificationsFigure B-2 10/100/1000 Port Pinouts SFP Module ConnectorsCore Modal Wavelength Cables and AdaptersSFP Module Cables TP3 Cable PinoutsDevice Switch Console RJ-45-to-DB-9 Port DTEConsole Port Adapter Pinouts RxD TxD Switch Console RJ-45-to-DB-25 Port DTE Adapter DeviceTxD RxD RJ-45 Console Port Accessing the CLI Through the Console PortFigure C-1 Connecting the Console Cable USB Mini-Type B Console Port Figure C-2 Connecting the USB-Mini Console CableInstalling the Cisco Microsoft Windows XP USB Driver Installing the Cisco Microsoft Windows USB Device DriversInstalling the Cisco Microsoft Windows 2000 USB Driver Using the Add or Remove Programs Utility Uninstalling the Cisco Microsoft Windows USB DriversCompleting the Setup Program Entering the Initial Configuration InformationIP Settings Enter an enable password, and press Return Enter an enable secret password, and press ReturnEnter a virtual terminal Telnet password, and press Return Switch or as a standalone switchThese choices appear OL-23803-02
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