SMC Networks 100 manual Making Vlan Connections

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NETWORK PLANNING

Making VLAN Connections

VLANs can be based on 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 any number of 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

	Status
	Activity
Tagged	1
Tagged
Ports
Untagged Ports	Tagged Port

Finance

VLAN 2

Testing

VLAN 3

VLAN 4

VLAN

unaware

switch

Marketing

Finance

VLAN 3

R&D

VLAN 1

VLAN 2

VLAN aware switch

Testing

Figure 2-4. Making VLAN Connections

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

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Contents TigerSwitch Page TigerSwitch Installation Guide Trademarks Limited Warranty Limited Warranty Compliances FCC Class aEC Conformance Declaration Class a Industry Canada Class a Iii Safety ComplianceWarnhinweis Faseroptikanschlüsse Optische Sicherheit Underwriters Laboratories Compliance StatementWichtige Sicherheitshinweise Germany Table of Contents Making Network Connections Vii Viii Overview Chapter About TigerswitchOptional Modules Switch ArchitectureDescription of Hardware Management Options100BASE-FX VF-45 Ports Port and System LEDs Status LEDsNetwork Management Module Network Management ModuleVLANs Spanning Tree ProtocolOptional Media Extender Modules Multicast SwitchingTraffic Priority Optional 100BASE-FX Module SMC6900FSCOptional 100BASE-FX Module SMC6900FSSC Optional 1000BASE-SX Module SMC6900GOptional 1000BASE-LX Module SMC6900GLSC Optional Redundant Power Unit SMCRPU150W Optional 1000BASE-T Module SMC6900GTOptional Stack Module SMC6900S 12. Power Supply Receptacles Power Supply ReceptaclesFeatures and Benefits ConnectivityExpandability Management PerformanceAbout the Tigerswitch About the Tigerswitch Chapter Network Planning Introduction to Switching Collapsed Backbone Sample ApplicationsCentral Wiring Closet Central Wiring ClosetRemote Connections with Fiber Cable Collapsed Backbone Using Fiber CableMaking Vlan Connections Making Vlan ConnectionsMbps Gigabit Ethernet Collision Domain Connectivity RulesMaximum 1000BASE-T Optic Cable Distance Maximum 1000BASE-SX Fiber Optic Cable DistanceMbps Fast Ethernet Collision Domain Maximum Network Diameter Using RepeatersMaximum 100BASE-FX Fiber Optic Cable Distance SMC 3-2 Rule for Class II RepeatersMaximum Fast Ethernet Cable Distance Cable Type Connecting Max. DistanceApplication 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 into the Switch Stacking Installing a ModuleStacking the Switches Power Receptacle Connecting to a Power SourceInstalling the Switch Chapter Making Network Connections Connecting Network DevicesVF-45 Fiber Connections SC Fiber Connections Making SC Port Connections Connecting to PCs, Servers, Hubs and Switches 1000BASE-T Twisted-Pair ConnectionsCabling Guidelines Making Twisted-Pair Connections Wiring Closet Connections Wiring Closet ConnectionsMaking Network Connections Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems InstallationIn-Band Access Troubleshooting Troubleshooting Appendix B Cables SpecificationsCables 1000BASE-T Pin Assignments RJ-45 Port and Cable Assignments1000BASE-T Cable Requirements Cable Testing for Existing Category 5 CableAdjusting Existing Category 5 Cabling DB-9 Port Pin Assignments Console Port Pin AssignmentsConsole Port to 9-Pin COM Port on PC Console Port to 25-Pin DCE Port on ModemConsole Port to 25-Pin DTE Port on PC Cables Physical Characteristics Appendix C SpecificationsTemperature WeightPower Supply Power ConsumptionSwitch Features Management Features Warranty StandardsCompliances Slide-in Module 100BASE-FX Extender Module1000BASE-SX Extender Module 1000BASE-T Extender Module 1000BASE-LX Extender ModuleConnector Interface Agent ModuleStack Module Appendix D Ordering Information Ordering Information Glossary-1 Glossary1000BASE-T Auto-NegotiationGlossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Transmission Control Protocol/Internet Protocol TCP/IPVirtual LAN Vlan Index-1 IndexIndex-2 See RPU Index-3Index-4 Page Internet