Troubleshooting | Digital Networks North America DNswitch 800

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

Troubleshooting 53

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

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 Conventions Setting an IP Address Setting Up Web Management Setting a Default Gateway Setting the Administrator PasswordSetting Trap Destinations Enabling Web Management Starting and Stopping Digital Networks WebView Areas of the User Interface Digital Networks WebView User Interface Areas of the User Interface Configuration Options Using Help Screen Hierarchy Configuring and Monitoring the Switch Parameter Description System Information Main Board Switch Information Parameter Default Description IP Configuration Snmp Community Snmp Configuration Trap Managers Trap Managers Change Password Security Configuration Web Upload Management Firmware Upgrade Options Tftp Download Management Tftp Download Management Configuration Save and Restore Configuration Upload ManagementConfiguration Download Management 12. Address Table Address Table Configuration STA Spanning Tree Algorithm Spanning Tree Spanning Tree Information 14. STA Information Ports Switch Spanning Tree Configuration 16. STA Configuration When the Switch Becomes Root Enabled STA Port Configuration Bridge Capability Configuring Bridge MIB Extensions Gmrp Bridge Settings Priority Port Priority Configuration 21. Port Traffic Class Information Port Traffic Class Information Vlan ID Vlan Management Vlan Basic Information Configuring Virtual LANs 24. Vlan Current Table Vlan Current Table Vlan Static Table Vlan Static List 27. Vlan Static Table Port Assignment 28. Vlan Static Membership by Port Vlan Static Membership by Port Pvid Vlan Port Configuration Igmp Multicast Filtering Configuring Igmp 31. Multicast Router Port Information Multicast Router Port Information 32. Static Multicast Router Port Configuration Static Multicast Router Port Configuration 33. Igmp Member Port Table Igmp Member Port Table 34. IP Multicast Registration Table IP Multicast Registration Table Port Information Port Menus Directly to the switch when its buffers fill. Back Port Configuration 37. Port Broadcast Storm Protect Configuration Port Broadcast Storm Protect Configuration 38. Port Security Configuration Port Security Configuration 39. Mirror Port Configuration Using a Port Mirror for Analysis Port Trunk Configuration 40. Port Trunk Configuration Etherlike Statistics Port Statistics 42. Rmon Statistics Rmon Statistics Bits 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