SMC Networks SMC6724AL2 manual Chapter Network Planning, Introduction to Switching

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CHAPTER 2

NETWORK PLANNING

Introduction to Switching

A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today's networking technology.

When performance bottlenecks are caused by congestion at the network access point (such as the network card for a high-volume file server), the device experiencing congestion (server, power user or hub) can be attached directly to a switched port. And, by using full-duplex mode, the bandwidth of the dedicated segment can be doubled to maximize throughput.

When networks are based on repeater (hub) technology, the maximum distance between end stations is limited. For Ethernet, there may be up to four hubs between any pair of stations; for Fast Ethernet, the maximum is two. This is known as the hop count. However, a switch turns the hop count back to zero. So subdividing the network into smaller and more manageable segments, and linking them to the larger network by means of a switch, removes this limitation.

A switch can be easily configured in any Ethernet or Fast Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

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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 Compliances Safety Compliance Warnhinweis Faseroptikanschlüsse Optische SicherheitUnderwriters Laboratories Compliance Statement Wichtige Sicherheitshinweise Germany Viii Table of Contents Making Network Connections Appendices Xii Overview Chapter About Tigerswitch 10/100Management Options Switch ArchitectureRJ-45 Ports Description of HardwareLED Status LEDsSystem Status LEDs Optional 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 Power Supply ReceptaclePerformance Features and BenefitsConnectivity ExpandabilityManagement Chapter Network Planning Introduction to SwitchingCollapsed Backbone Application ExamplesNetwork Aggregation Plan Network Aggregation PlanRemote Connection with Fiber Cable Remote Connection with Fiber CableMaking Vlan Connections Making Vlan ConnectionsApplication Notes Selecting a Site Installing the SwitchRJ-45 Connections Ethernet CablingEquipment 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 SwitchPower Receptacle Connecting to a Power SourceConnecting to the Console Port Wiring Map for Serial CableSerial Cable Wiring Installing the Switch Cabling Guidelines Connecting Network DevicesChapter Making Network Connections Twisted-Pair DevicesMaking Twisted-Pair Connections Connecting to PCs, Servers, Hubs and SwitchesWiring Closet Connections Fiber Optic Devices Wiring Closet ConnectionsMaking SC Port Connections 1000BASE-T Cable Requirements Connectivity Rules10/100 Mbps Ethernet Collision Domain Mbps Gigabit Ethernet Collision DomainCable Labeling and Connection Records Diagnosing Switch Indicators Appendix a TroubleshootingPower and Cooling Problems InstallationIn-Band Access Appendix B Cables Specifications10BASE-T/100BASE-TX Pin Assignments Twisted-Pair Cable and Pin AssignmentsFigure B-2. Straight-through Wiring Straight-Through Wiring1000BASE-T Pin Assignments Crossover WiringCable Testing for Existing Category 5 Cable Fiber Standards Adjusting Existing Category 5 CablingConsole Port Pin Assignments DB-9 Port Pin AssignmentsConsole Port to 9-Pin DTE Port on PC Console Port to 25-Pin DTE Port on PC Appendix C Specifications Physical CharacteristicsBase Unit Switch Features Standards Management FeaturesCE Mark Emissions WarrantySafety CompliancesSlide-in Modules 100BASE-FX Extender Modules1000BASE-T Extender Module 1000BASE-X Gbic Module Appendix D Ordering Information Ordering Information Bandwidth Glossary1000BASE-T Auto-NegotiationEthernet Fast Ethernet SwitchCollision Domain End StationIeee 802.3z IeeeIeee 802.3ab Ieee 802.3uNetwork Diameter Media Access Control MACRJ-45 Connector Switched PortsNumerics IndexIndex-2 Index-3 Index-4 Page For Technical SUPPORT, Call

SMC6724AL2 specifications

The SMC Networks SMC6724AL2 is a high-performance Layer 2 managed switch that has been designed to cater to the needs of growing networks. It offers robust features, reliability, and advanced technologies that make it suitable for small to medium enterprises and advanced network infrastructures.

One of the standout features of the SMC6724AL2 is its 24 Ethernet ports, which provide excellent connectivity options. These ports support 10/100/1000 Mbps speeds, ensuring that devices can communicate efficiently without bottlenecks. Additionally, the switch incorporates four SFP (Small Form-factors Pluggable) slots that offer flexibility for fiber optic connections, enabling long-distance data transmission and further enhancing the network's scalability.

The switch supports advanced Layer 2 features such as VLAN (Virtual Local Area Network), which allows for logical segmentation of networks, improving security and managing broadcast traffic. The powerful traffic management capabilities include Quality of Service (QoS), which prioritizes critical applications and ensures optimal performance for voice and video traffic.

To enhance network reliability, the SMC6724AL2 comes equipped with features such as Link Aggregation Control Protocol (LACP), which combines multiple physical ports into a single logical link to increase the available bandwidth and provide redundancy. The switch also supports Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP), which help to prevent network loops and ensure reliable data transfer.

User-friendly management options are another hallmark of the SMC6724AL2. It offers support for Simple Network Management Protocol (SNMP), enabling administrators to monitor network status and performance effectively. The device can also be configured through a web-based interface, allowing for easy setup and management without the need for complex command-line operations.

In terms of security, the SMC6724AL2 provides features such as port security and access control lists (ACLs) to safeguard against unauthorized access and ensure data integrity. Its robust hardware comes with a metal chassis designed for durability, making it suitable for various environments.

In summary, the SMC Networks SMC6724AL2 is a versatile and powerful managed switch that meets the demands of modern networking, offering advanced features and technologies that ensure reliability, performance, and security for enterprises looking to optimize their network infrastructure.
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