Cisco Systems 520 manual Troubleshooting the Switch, Before You Begin

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C H A P T E R 7

Troubleshooting the Switch

Read this chapter to learn about basic troubleshooting of the switch. The tasks in this chapter are independent, unless otherwise noted, and are listed in no particular order.

We strongly recommend that you download the Cisco Configuration Assistant from Cisco.com and use the enhanced set of tools to troubleshoot the switch and your network. You can download it from this Cisco.com site:

http://www.cisco.com/go/configassist

Before You Begin

The troubleshooting features described in this chapter are available if the switch has an IP address. Make sure that the switch has been set up as described in Chapter 2, “Setting Up the Switch.”

Familiarize yourself with the monitoring features (see Chapter 6, “Monitoring the Switch”) from which you can find out the specific problems on the switch and from which you can prevent problems by addressing problematic trends.

Before you upgrade the switch, review the information in the Release Notes for the Catalyst Express 520 Switches on Cisco.com.

Chapter Topics

•Troubleshoot IP Address Problems, page 7-2

•Troubleshoot Displaying of the Device Manager, page 7-3

•Troubleshoot Connections to the Switch, page 7-5

•Access Direct Managed Mode, page 7-6

 

 

User Guide for the Catalyst Express 520 Switches

 

 

 

 

 

 

OL-12761-02

 

 

7-1

 

 

 

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Contents User Guide for Catalyst Express 520 Switches Page Page Page N T E N T S Installing the Switch Troubleshooting the Switch Cabling Guidelines A-10 Ethernet Port Connections A-10 How This Guide Is Organized Using This GuideMonitor the status and the performance of the switch Related Documentation Switch Documentation SetXii Chapter Topics IntroductionOverview 2show the switches in network examplesCatalyst Express 520-24PC-K9 Catalyst Express 520-8PC-K9Catalyst Express 520-24TT-K9 Catalyst Express 520-24LC-K9Cisco Smart Business Communications System Network Example Catalyst Express Switch Network Example Security slot Hardware FeaturesAC power ConnectorPoE LED System LEDAdmin button Uplink portsPorts View list Device Manager Software FeaturesDevice Manager Interface Express Setup MonitoringSecurity Cisco Configuration Assistant Supported Hardware Box ContentsSoftware Requirements Hardware RequirementsOperating System Microsoft Internet Explorer Mozilla Firefox Before You Begin Setting Up the SwitchPrerequisites Set Up the Switch Existing NetworkTroubleshooting 201615 201616 Troubleshooting Set Up the Switch No Network 191685 Enter the network setting in the Express Setup window Repeat to Step Same network as the switch IP address assigned in Step When You Are Done Secured Sessions with the SwitchInstalling the Switch Cause severe bodily injury and equipment damage. Statement Statement 371-Power Cable and AC Adapter OL-12761-02 Installation Guidelines Installing the Switch Installation Guidelines Install the Switch On a Desk or Shelf Prerequisite Install the Switch in a Rack201618 Cable guide is not used with Install the Switch on a Wall To the wall as shown in Step Connecting to the Switch Cabling Guidelines Repeat to as necessary Connect to an Ethernet PortInstall an SFP Module into an SFP Module Slot Remove an SFP Module from an SFP Module Slot Connect to a Fiber-Optic SFP Module Port Connect to a Dual-Purpose Port Either Changing the Switch Network Settings Change Optional Administrative Settings Change the Switch IP InformationMonitoring the Switch OL-12761-02 Monitoring the Switch Front Panel View Review the Front Panel View and the LEDsPoE ExplanationExplanation Status AdminPort Mode Explanation Duplex SpeedSmartports Review the Dashboard Switch DashboardReview the Port Statistics Review the Port StatusSample Alert Log Review the Alert LogMonitoring the Switch When You Are Done OL-12761-02 Troubleshooting the Switch Troubleshoot IP Address Problems Switch Has Wrong IP AddressIP Address Is Not Received from Dhcp Server Device Manager Does Not Display Troubleshoot Displaying of the Device ManagerDevice Manager Is Not Accessible Through the Network Device Manager Is Not Operating ProperlyDevice Manager Has a Slow Response Time Troubleshoot Connections to the Switch Switch and Other Device Are Not CommunicatingCisco IP Phones Continually Disconnect Access Direct Managed Mode Restart the Switch Reset the Switch Recover a Username or Password Recover the Switch Software If You Need Further Help Troubleshoot a Failed Software UpgradeOL-12761-02 Reference Technical Specifications Power RequirementsEnvironmental Ranges Acoustic Dimensions2 Physical DimensionsLocation of the Switch Serial Number 10/100 and 10/100/1000 Ports Connector SpecificationsFigure A-4shows the pinout for a 10/100/1000 port Appendix a Reference Connector Specifications SFP Module Ports Copper SFP Module RJ-45 ConnectorFigure A-7 10/100/1000 Port Pinouts Dual-Purpose PortsSmall Form-Factor Pluggable Module Port Connections Ethernet Port ConnectionsSMF CSS5-CABSX-LCSC= Type Cisco Part NumberTwo Twisted-Pair Cable Pinouts Cable and Adapter SpecificationsFigure A-10 Four Twisted-Pair Cable Pinouts for 1000BASE-T PortsFigure A-12 Identifying a Crossover Cable Crossover CableOL-12761-02 Cisco Support Resources Cisco Networking Professionals Connection Cisco Small and Medium-Sized Business SMB SolutionsNumerics IN-2 IN-3 IN-4 IN-5 IN-6 IN-7 IN-8 IN-9 IN-10
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