Cisco Systems ME3600X24CXM Clearing the Switch IP Address and Configuration, Switch Performance

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Appendix 4 Troubleshooting

Clearing the Switch IP Address and Configuration

Switch Performance

Speed, Duplex, and Autonegotiation

If the port statistics show a large amount of alignment errors, frame check sequence (FCS), or late-collisions errors, this might mean a speed or duplex mismatch.

A common issue with speed and duplex is when the duplex settings are mismatched between two switches, between a switch and a router, or between the switch and a workstation or server. Mismatches can happen when manually setting the speed and duplex or from autonegotiation issues between the two devices.

To maximize switch performance and to ensure a link, follow one of these guidelines when changing the duplex or speed settings.

•Let both ports autonegotiate both speed and duplex.

•Manually set the speed and duplex parameters for the ports on both ends of the connection.

•If a remote device does not autonegotiate, set the same duplex settings on the two ports. The speed parameter adjusts itself even if the connected port does not autonegotiate.

Autonegotiation and NICs

Problems sometimes occur between the switch and third-party network interface cards (NICs). By default, the switch ports and interfaces are set to autonegotiate. Devices like laptops or other devices are commonly set to autonegotiate, yet sometimes autonegotation issues occur.

To troubleshoot autonegotiation problems, try manually setting both sides of the connection. If this does not solve the problem, there could be a problem with the firmware or software on your NIC. You can resolve this by upgrading the NIC driver to the latest available version.

Cabling Distance

If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance from the switch to the connected device meets the recommended guidelines. See the “Cables and Adapters” section on page B-5for cabling guidelines.

Clearing the Switch IP Address and Configuration

This section describes how to reset the switch by rerunning the initial configuration dialog (system configuration dialog). These are reasons why you might want to reset the switch:

•You installed the switch in your network and cannot connect to it because you assigned the wrong IP address.

•You want to clear all the configuration settings from the switch and assign a new IP address.

Caution This procedure clears the IP address and all configuration information stored on the switch. Do not follow this procedure unless you want to completely reconfigure the switch.

Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide

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OL-22168-01

 

 

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Contents Americas Headquarters Text Part Number OL-22168-01Page Audience PurposeRelated Publications Obtaining Documentation and Submitting a Service Request OL-22168-01 Setting Up the Switch Switch ModelsSwitch Model Description Front PanelAlarm Input Port Bits Port10/100/1000 Gigabit Ethernet Ports Management and Console PortSFP+ and SFP Modules Part Number Description Dwdm CAB-SFP-50CMLEDs SD Memory SlotSFP Module Patch Cable System LED Description Switch LED PanelsColor System Status Power Supply and Fan LED Description Power Supply Module Input LED DescriptionEthernet Management Port LED Description Sync LED Description Alarm LEDs DescriptionSD Card LED Description Port LEDs Description Rear PanelLED Color Meaning Power Supply Module Features Power Supply Module LEDsFan Module Management Options Fan Module LEDNetwork Configurations Switch Installation Switch Installation 122F 50C Statement Installation Guidelines Verifying Switch OperationPowering Off the Switch Installing the SwitchRack-Mounting Attaching Brackets to the Switch Rack-Mounting BracketsAttaching Brackets for 19-Inch Racks Attaching Brackets for 23-Inch Racks Attaching Brackets for Etsi Racks Attaching Angle Brackets for 23-Inch Racks Mounting the Switch Mounting in a RackMounting the Switch Using 23-Inch Angle Brackets Wall-Mounting Attaching Brackets for Wall-MountingMounting the Switch on a Wall Mounting Cisco ME 3800X on a WallInstalling SFP+ and SFP Modules Installing and Removing SFP+ and SFP ModulesTable- or Shelf-Mounting 11 Installing an SFP+ Module into an SFP+ Module Slot Removing SFP+ or SFP ModulesInserting and Removing the SFP+ Module Patch Cable 12 Removing a Bale-Clasp Latch SFP+ Module14 Connecting Two Switches with an SFP+ Module Patch Cable Connecting to the 10/100/1000 Ports 15 Connecting to an Ethernet PortConnecting to Fiber-Optic SFP+ and SFP Modules Where to Go NextPower Supply Module Description Model number DescriptionAC Input Power Supply Module Handle Side Connector-Side Description Fan Module DescriptionInstallation Guidelines Power Supply and Fan Module InstallationEquipment That You Supply Installing an AC Power Supply Module AC-1 PSU-1 AC-2 PSU-2Removing AC Power Supply Modules AC Power Supply Module and Power-Cord Retainer in a SwitchInstalling a DC Power Supply Module Preparing for InstallationGrounding the Switch Stripping the Ground WireCrimping the Ground Lug Wiring the DC Input Power Source Installing the DC Power Supply Module in the Switch24VDC 30A Inch 8.9 mm ± 0.02 inch 0.5 mm 3 Wire lead Insulation Removing the DC Power Supply Module Installing a Fan Module 14 Inserting a Fan Module in a SwitchOL-22168-01 Diagnosing Problems Switch Post ResultsBad or Damaged Cable Switch LEDsSwitch Connections Ethernet and Fiber CablesPing the End Device SFP+ and SFP Module Port IssuesPort and Interface Settings Spanning Tree LoopsSpeed, Duplex, and Autonegotiation Clearing the Switch IP Address and ConfigurationSwitch Performance Autonegotiation and NICsFinding the Switch Serial Number Serial Number Location on the Cisco ME 3800X and MEOL-22168-01 Technical Specifications Environmental RangesAC Power Requirements Physical DimensionsDC Power Requirements Table A-3 Technical Specifications-ME-3600X-24FS-M Table A-4 Technical Specifications-ME-3600X-24TS-M Physical Specifications Power SpecificationsOL-22168-01 Connector Specifications 10/100/1000SFP and SFP+ Module Connectors Copper SFP Module RJ-45 Connector10/100/1000 Ethernet Management Port Figure B-5 SFP Module Patch CablePin Signal Direction Description TX TIPSFP and SFP+ Module Cabling Cables and AdaptersCore Modal Wavelength Dwdm Cable Pinouts TP3Console Port Adapter Pinouts Figure B-11Switch Console RJ-45-to-DB-25 Port DTE DSR DTR CTS RTSOL-22168-01 Accessing the CLI Through the Console Port Starting the Terminal-Emulation SoftwareIP Settings Entering the Initial Configuration InformationCompleting the Setup Program Enter an enable password, and press Return These choices appear
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