SMC Networks SMC6724L3 INT manual Making Vlan Connections

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APPLICATION EXAMPLES

Making VLAN Connections

VLANs can be based on untagged port groups, or each data frame can be explicitly tagged to identify the VLAN group it belongs to. When using port-based VLANs, ports can either be assigned to one specific group or to all groups. Port-based VLANs are suitable for small networks. A single switch can be easily configured to support several VLAN groups for various organizational entities (such as Finance and Marketing).

When you expand port-based VLANs across several switches, you need to make a separate connection for each VLAN group. This approach is, however, inconsistent with the Spanning Tree Protocol, which can easily segregate ports that belong to the same VLAN. When VLANs cross separate switches, it is therefore better to use VLAN tagging. This allows you to assign multiple VLAN groups to the “trunk” ports (that is, tagged ports) connecting different switches.

R&D

VLAN 1

Tagged

Ports

Finance

VLAN 2

Testing

VLAN 3

VLAN 4

Untagged Ports

Tagged Port

VLAN

unaware

switch

Marketing

Finance

VLAN 3

VLAN aware switch

R&D

Testing

VLAN 1

VLAN 2

Figure 2-4. Making VLAN Connections

Note: When connecting to a switch that does not support IEEE 802.1Q VLAN tags, use untagged ports.

2-5

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Contents TigerSwitch 10/100 Page TigerSwitch 10/100 Installation Guide Trademarks Limited Warranty SMC Networks, Inc Tesla Irvine, CA Compliances FCC Class aIndustry Canada Class a EC Conformance Declaration Class a Japan Vcci Class a Australia AS/NZS 3548 1995 Class a Safety Compliance Warnhinweis Faseroptikanschlüsse Optische SicherheitUnderwriters Laboratories Compliance Statement Wichtige Sicherheitshinweise Germany Viii Table of Contents Making Network Connections Installing the SwitchAppendices Table of Contents Overview Chapter About Tigerswitch 10/100SMC6724L3 Front and Rear Panels Switch ArchitectureManagement Options RJ-45 Ports Description of HardwarePort Status LEDs Ports Status LEDsSystem Status LEDs System Status LEDsOptional Media Extender Modules Optional 10/100/1000BASE-T Module SMC6824GTOptional 100BASE-FX Module SMC6824FSSC Optional 1000BASE-X Gbic Module SMC6824GB Optional 100BASE-FX Module SMC6824FMSCPower Supply Receptacle Optional Redundant Power UnitFeatures and Benefits ConnectivityExpandability Management PerformanceAbout the Tigerswitch 10/100 Chapter Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesCentral Wiring Closet Central Wiring ClosetRemote Connection with Fiber Cable Remote Connection with Fiber CableMaking Vlan Connections Making Vlan ConnectionsIP Routing for Unicast Traffic Using Layer 3 RoutingMbps Gigabit Ethernet Collision Domain Connectivity Rules10/100 Mbps Ethernet Collision Domain Application Notes Network Planning Selecting a Site Installing the SwitchEquipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting MountingAttaching the Brackets Attaching the Adhesive Feet Desktop or Shelf MountingInstalling an Optional Module Installing an Optional Module into the SwitchInstalling a Gbic Transceiver Installing a Gbic TransceiverPower Receptacle Connecting to a Power SourceChapter Making Network Connections Connecting Network DevicesTwisted-Pair Devices Cabling GuidelinesMaking Twisted-Pair Connections Connecting to PCs, Servers, Hubs and SwitchesTWISTED-PAIR Devices Wiring Closet Connections Wiring Closet ConnectionsFiber Optic Devices Making SC Port Connections Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems InstallationIn-Band Access Appendix B Cables SpecificationsFiber SMF Twisted-Pair Cable and Pin Assignments10BASE-T/100BASE-TX Pin Assignments Figure B-1. RJ-45 Connector Pin NumbersCrossover Wiring Straight-Through Wiring1000BASE-T Pin Assignments Cable Testing for Existing Category 5 Cable Adjusting Existing Category 5 Cabling1000BASE-T Cable Requirements Console Port Pin Assignments Wiring Map for Serial CableCables Appendix C Specifications Physical CharacteristicsBase Unit Compliances Warranty Slide-in Modules100BASE-FX Extender Modules Model 1000BASE-T Extender Module1000BASE-X Gbic Module Specifications Appendix D Ordering Information Ordering Information 1000BASE-T GlossaryBandwidth Auto-NegotiationCollision Collision DomainFast Ethernet Fast Ethernet SwitchFull Duplex Gigabit EthernetIeee 802.3z Media Access Control MACLAN Segment Link SegmentRJ-45 Connector Switched PortsStraight-through Port Glossary-6 Numerics IndexIndex-2 Index-3 Index-4 Page For Technical SUPPORT, Call