Cisco Systems 520 manual Review the Port Status, Review the Port Statistics

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Chapter 6 Monitoring the Switch

Review the Port Status

Review the Port Status

If the switch has link problems, such as traffic that is not being received on a switch port, check the port status, and verify that the port settings are correct. You should also verify the settings of switch port before connecting a device to it.

You can view these port settings through the Port Status window on the device manager:

•Port status

•VLAN status

•Current speed

•Duplex mode

•PoE status

•Auto-MDIX status

See the device manager online help for additional information and procedures.

Review the Port Statistics

The Port Statistics window displays the statistics for data sent and received by the switch ports since the switch was last powered on, was restarted, or since the statistics were last cleared.

The types of port statistics collected and displayed are grouped under these tabs on the Port Statistics window on the device manager:

•Overview tab—Use this tab to display the specific numbers of error packets received on and sent from the port, which is a level of detail that is not available from the Dashboard graphs. The number of error packets can mean a duplex mismatch, incompatibilities with the port and its attached device, or faulty cables or attached devices. Any of these problems can cause slow network performance, data loss, or lack of connectivity.

•Transmit Detail tab—Use this tab to troubleshoot unusual changes in network traffic. If a port is sending an unusually high amount of traffic (such as multicast or broadcast packets), monitor the connected device to see if this traffic pattern is normal or if it could mean a problem.

		User Guide for the Catalyst Express 520 Switches
		User Guide for the Catalyst Express 520 Switches
	OL-12761-02			6-7
	OL-12761-02			6-7

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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 520-24PC-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 LEDPorts Admin buttonUplink ports View list Device Manager Software FeaturesDevice Manager Interface Security Express SetupMonitoring 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 AdminSmartports Port Mode Explanation DuplexSpeed 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 IP Address Is Not Received from Dhcp Server Troubleshoot IP Address ProblemsSwitch Has Wrong IP Address Device Manager Does Not Display Troubleshoot Displaying of the Device ManagerDevice Manager Has a Slow Response Time Device Manager Is Not Accessible Through the NetworkDevice Manager Is Not Operating Properly Cisco IP Phones Continually Disconnect Troubleshoot Connections to the SwitchSwitch and Other Device Are Not Communicating 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 Environmental Ranges Technical SpecificationsPower Requirements 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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