Digital Networks North America DNswitch 800 manual Troubleshooting, Cannot Connect to the Switch

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APPENDIX A. TROUBLESHOOTING

This appendix describes problems potentially encountered when using Digital Networks WebView and presents suggested solutions for correcting these problems.

Troubleshooting

Cannot Connect to the Switch

If you attempt to connect to the switch and the main window does not appear, make sure that the correct IP address is entered in the URL field of the browser.

•Check the network connections of both your workstation and the switch.

•Try to Ping the IP address to see If it’s indeed reachable.

•Set the IP gateway if necessary.

•Make sure the correct password is entered.

•Make sure the HTTP Server parameter is set to “ENABLED.”

System is Disconnected from the Switch

If your workstation is disconnected from the switch during an active session, you may see the following messages:

or, “Device is not responding to SNMP queries”

•Reconnect the workstation to the switch. You may need to re-enter your latest changes, but the user interface should become available again for use.

•If the user interface does not become available after reconnecting, close the Digital Networks WebView window and start a new session.

DNswitch 800

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Contents Digital Networks Page Revision/Update Information DNswitch Web Management GuidePage FCC Class B Certification USA Safety Compliance Underwriters Laboratories Compliance Statement Page Table of Contents Index Features Digital Networks WebView DescriptionSystem Requirements This guide uses the following user input conventions ConventionsSetting an IP Address Setting Up Web ManagementSetting a Default Gateway Setting the Administrator PasswordSetting Trap Destinations Enabling Web Management Starting and Stopping Digital Networks WebViewAreas of the User Interface Digital Networks WebView User InterfaceAreas of the User Interface Configuration Options Using HelpScreen Hierarchy Configuring and Monitoring the SwitchParameter Description System InformationMain Board Switch InformationParameter Default Description IP ConfigurationSnmp Community Snmp ConfigurationTrap Managers Trap ManagersChange Password Security ConfigurationWeb Upload Management Firmware Upgrade OptionsTftp Download Management Tftp Download ManagementConfiguration Save and Restore Configuration Upload ManagementConfiguration Download Management 12. Address Table Address Table ConfigurationSTA Spanning Tree Algorithm Spanning Tree Spanning Tree Information14. STA Information Ports Switch Spanning Tree Configuration16. STA Configuration When the Switch Becomes Root Enabled STA Port ConfigurationBridge Capability Configuring Bridge MIB ExtensionsGmrp Bridge SettingsPriority Port Priority Configuration21. Port Traffic Class Information Port Traffic Class InformationVlan ID Vlan ManagementVlan Basic Information Configuring Virtual LANs24. Vlan Current Table Vlan Current TableVlan Static Table Vlan Static List27. Vlan Static Table Port Assignment 28. Vlan Static Membership by Port Vlan Static Membership by PortPvid Vlan Port ConfigurationIgmp Multicast Filtering Configuring Igmp31. Multicast Router Port Information Multicast Router Port Information32. Static Multicast Router Port Configuration Static Multicast Router Port Configuration33. Igmp Member Port Table Igmp Member Port Table34. IP Multicast Registration Table IP Multicast Registration TablePort Information Port MenusDirectly to the switch when its buffers fill. Back Port Configuration37. Port Broadcast Storm Protect Configuration Port Broadcast Storm Protect Configuration38. Port Security Configuration Port Security Configuration39. Mirror Port Configuration Using a Port Mirror for AnalysisPort Trunk Configuration 40. Port Trunk Configuration Etherlike Statistics Port Statistics42. Rmon Statistics Rmon StatisticsBits but including FCS octets Configuring and Monitoring the Switch DNswitch Troubleshooting Cannot Connect to the SwitchSystem is Disconnected from the Switch Frequently Asked Questions Can I Open More Than One Window for Same Switch?How Do I Confirm a Successful Software Download? Index Vlan Page WM-DSA8G-00