Vlan | 3Com 3C16491 specification

92GLOSSARY

VLAN

A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN serves as a logical workgroup with no physical barriers, and allows users to share information and resources as though located on the same LAN.

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3Com 3C16491 manual Vlan

Contents

Baseline Switch PWR Plus 3C16491 3Com Corporation 350 Campus Drive Marlborough MA USA Contents Snmp Regulatory Notices Glossary Index Page About this Guide Conventions Documentation Comments Product Registration Overview of the Baseline Switch Features and CapabilitiesAutosensing of MDI/MDIX Connections Autonegotiating 10/100 Mbps Ports Physical Features Power-over-Ethernet CapabilityGigabit Combo Ports RJ-45/SFP Front Panel Gigabit Combo Ports RJ-45/SFP Link/Activity Status LEDs Power LED Rear Panel Package Contents Positioning the Switch Before You Begin Using the Mounting Kit Rack-Mounting or Free-Standing Montagesatz Anweisungen Placing Units On Top of Each Other Supplying Power to the Switch Checking for Correct Operation Inserting an SFP Transceiver Using SFP TranceiversApproved SFP Transceivers Removing an SFP Transceiver Inserting an SFP Transceiver Performing Spot Checks Installing the Switch Requirements for Accessing the Web Interface Running the Discovery Application Welcome screen of Discovery appears Logging On to the Web Interface Discovered Devices Screen Navigating the Web Interface Menu Lists the available items on the menu Menu Item Buttons Port Status Manually Assigned Static IP Address Accessing the Interface Without Using DiscoveryDhcp Assigned IP Address Configuration Overview Device Summary Information Device View Polling Interval Administration Settings Modifying the IP Address SettingsAutomatic IP Configuration Color Key IP Setup To set the IP address for the Switch Backup Configuration Restore Configuration Firmware Upgrade Upgrade Screen Reboot Initialize System Access User Summary Create User Modify User System Time Remove User Snmp Add SetupSummary Configuring VLANs Snmp Remove Vlan Modify Vlan Modify Port Rename Modify Port Screen Vlan Detail RemovePort Detail Sample Vlan Configurations Forwarding Tagged/Untagged Frames Setting Up Two VLANs on the Same Switch Setting Up Vlan Across Two Switches Tagged Vlan Configuration Spanning Tree Spanning Tree Screen Broadcast Storm Igmp SnoopingIgmp Query Broadcast Storm Setup Screen PoE Configuring Port Settings Administration Port Administration Summary Screen Detail Port Administration Setup Screen Speed/Duplex for 1000 Mbps Connections Link Aggregation Guidelines for Creating Trunks Create Link Aggregation Summary Screen Modify Link Aggregation Modify Screen Spanning Tree per Port Spanning Tree Summary Screen Spanning Tree Setup Screen Port Mirroring Port Mirroring Setup Screen Statistics QoS VoIP Traffic Settings QoS VoIP Summary Screen Port Setup QoS VoIP Setup Screen OUI Summary OUI Add Security Radius Client Configure Radius Client Detail Screen 802.1X Settings 802.1X Summary Screen 802.1X Detail Screen Monitoring Address Table Cable Diagnostics Address Table Screen Diagnostics Cable Diagnostic Screen Troubleshooting Resetting to Factory Defaults Forgotten Static IP Address Forgotten PasswordSolving LED Issues Fiber cable is connected, but the Module Active LED is off Link/Activity LED is on, but network performance is poor If the Problem Persists All ports appear to show continual activity Register Your Product Purchase Value-Added ServicesTroubleshoot Online Access Software Downloads Telephone Technical Support and Repair Contact Us Country Telephone Number Latsupportanc@3com.com Related Standards EnvironmentalPhysical Electrical Appendix B Technical Information Safety Information Important Safety Information Appendix C Safety Information Regulatory Notices Page Bandwidth 1000BASE-TAuto-negotiation Category 3 Cables Category 5 CablesCategory 5e Cables Category 6 Cables Full Duplex Half DuplexIeee 802.1D Ieee 802.1Q Layer Link AggregationMAC Address Network Switch ServerSubnet Address Subnet Mask Vlan Index Numbers Index