Making Vlan Connections | SMC Networks 100 specs

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.

2-5

Image 33

SMC Networks 100 manual Making Vlan Connections

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 Statement Wichtige Sicherheitshinweise Germany Table of Contents Making Network Connections Vii Viii Overview Chapter About Tigerswitch Optional Modules Switch Architecture Description of Hardware Management Options100BASE-FX VF-45 Ports Port and System LEDs Status LEDs Network Management Module Network Management Module VLANs Spanning Tree Protocol Optional Media Extender Modules Multicast SwitchingTraffic Priority Optional 100BASE-FX Module SMC6900FSC Optional 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 Receptacles Features and Benefits ConnectivityExpandability Management Performance About the Tigerswitch About the Tigerswitch Chapter Network Planning Introduction to Switching Collapsed Backbone Sample Applications Central Wiring Closet Central Wiring Closet Remote Connections with Fiber Cable Collapsed Backbone Using Fiber Cable Making Vlan Connections Making Vlan Connections Mbps Gigabit Ethernet Collision Domain Connectivity RulesMaximum 1000BASE-T Optic Cable Distance Maximum 1000BASE-SX Fiber Optic Cable Distance Mbps Fast Ethernet Collision Domain Maximum Network Diameter Using RepeatersMaximum 100BASE-FX Fiber Optic Cable Distance SMC 3-2 Rule for Class II Repeaters Maximum Fast Ethernet Cable Distance Cable Type Connecting Max. Distance Application Notes Network Planning Selecting a Site Installing the Switch Equipment Checklist Package ContentsOptional Rack-Mounting Equipment Rack Mounting Mounting Attaching the Brackets Attaching the Adhesive Feet Desktop or Shelf Mounting Installing an Optional Module into the Switch Stacking Installing a Module Stacking the Switches Power Receptacle Connecting to a Power Source Installing the Switch Chapter Making Network Connections Connecting Network Devices VF-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 Connections Making Network Connections Diagnosing Switch Indicators Appendix a Troubleshooting Power and Cooling Problems InstallationIn-Band Access Troubleshooting Troubleshooting Appendix B Cables Specifications Cables 1000BASE-T Pin Assignments RJ-45 Port and Cable Assignments 1000BASE-T Cable Requirements Cable Testing for Existing Category 5 Cable Adjusting Existing Category 5 Cabling DB-9 Port Pin Assignments Console Port Pin Assignments Console 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 Specifications Temperature WeightPower Supply Power Consumption Switch Features Management Features Warranty StandardsCompliances Slide-in Module 100BASE-FX Extender Module1000BASE-SX Extender Module 1000BASE-T Extender Module 1000BASE-LX Extender Module Connector Interface Agent ModuleStack Module Appendix D Ordering Information Ordering Information Glossary-1 Glossary1000BASE-T Auto-Negotiation Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Transmission Control Protocol/Internet Protocol TCP/IPVirtual LAN Vlan Index-1 Index Index-2 See RPU Index-3 Index-4 Page Internet