Cisco Systems 520 manual Restart the Switch

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Chapter 7 Troubleshooting the Switch

Restart the Switch

If the device manager does not appear, make sure that any pop-up blockers or proxy settings in your browser software are disabled and that any wireless clients running on your PC or laptop are disabled.

You might also need to enter a URL in your browser, such as www.cisco.com.

Restart the Switch

If you cannot solve a problem by reconfiguring a feature through the Cisco Configuration Assistant, restarting the switch might solve the problem or help you to eliminate probable causes. When you restart the switch, the switch retains its saved configuration settings during the restart process.

Note Restarting the switch interrupts connectivity of your devices to the network.

To restart the switch:

•If you have access to the switch through the Cisco Configuration Assistant, select the System Reload option from the Maintenance menu.

•If you have access to the device manager, use the Restart / Reset window, and click the Restart the Switch radio button.

This option restarts the switch without turning off power. However, the device manager is unavailable during the restart process. When the process completes, the switch displays the device manager.

•If you do not have access to the device manager, follow the procedure in the “Access Direct Managed Mode” section on page 7-6.

		User Guide for the Catalyst Express 520 Switches
		User Guide for the Catalyst Express 520 Switches
	OL-12761-02			7-7
	OL-12761-02			7-7

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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 520-24TT-K9 Catalyst Express 520-8PC-K9Catalyst Express 520-24LC-K9 Catalyst Express 520-24PC-K9Cisco Smart Business Communications System Network Example Catalyst Express Switch Network Example AC power Hardware FeaturesConnector Security slotPoE 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 Manager Device Manager Is Not Accessible Through the Network Device Manager Is Not Operating Properly Device 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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