SMC Networks SMC8926EM, SMC8950EM manual Csma/Cd

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Glossary

Auto-Negotiation

Signalling method allowing each node to select its optimum operational mode (e.g., speed and duplex mode) based on the capabilities of the node to which it is connected.

Bandwidth

The difference between the highest and lowest frequencies available for network signals. Also synonymous with wire speed, the actual speed of the data transmission along the cable.

Collision

A condition in which packets transmitted over the cable interfere with each other. Their interference makes both signals unintelligible.

Collision Domain

Single CSMA/CD LAN segment.

CSMA/CD

CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethernet, Fast Ethernet, or Gigabit Ethernet.

End Station

A workstation, server, or other device that does not forward traffic.

Ethernet

A network communication system developed and standardized by DEC, Intel, and Xerox, using baseband transmission, CSMA/CD access, logical bus topology, and coaxial cable. The successor IEEE 802.3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber, thin coax and twisted-pair cable.

Fast Ethernet

A 100 Mbps network communication system based on Ethernet and the CSMA/CD access method.

Full Duplex

Transmission method that allows two network devices to transmit and receive concurrently, effectively doubling the bandwidth of that link.

Gigabit Ethernet

A 1000 Mbps network communication system based on Ethernet and the CSMA/CD access method.

Glossary-2

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Contents Installation Guide TigerStack II 10/100/1000 Installation Guide Page Warranty and Product Registration Compliances and Safety Warnings CE Mark Declaration of Conformance for EMI and Safety EEC Power Cord Safety Safety CompliancePower Cord Set France et Pérou uniquement Environmental Statement Documentation About This Guide Contents Making Network Connections Glossary Index Tables Figures Figures Introduction OverviewSwitch Architecture Network Management OptionsIntroduction Port Status LEDs Condition Status LinkActivity On/Flashing Green SpeedOptional Redundant Power Supply Power Supply SocketsFeatures and Benefits Optional Media Extender ModulesExtender Module LEDs ConnectivityManagement ExpandabilityPerformance Introduction Introduction to Switching Network PlanningApplication Examples Collapsed BackboneNetwork Aggregation Plan Network Aggregation PlanRemote Connections with Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsUsing Layer 3 Routing Application Notes Network Planning Ethernet Cabling Installing the SwitchSelecting a Site Optional Rack-Mounting Equipment Equipment ChecklistPackage Contents Mounting Rack MountingInstalling the Switch in a Rack Desktop or Shelf MountingInstalling an Optional Module into the Switch Installing an Optional ModuleInstalling an Optional SFP Transceiver Inserting an SFP Transceiver into a SlotConnecting Switches in a Stack Making Stacking ConnectionsConnecting to a Power Source Stacking TopologiesSerial Cable Wiring Switch’s 8-Pin Null Modem PC’s 9-Pin Connecting to the Console PortWiring Map for Serial Cable Installing the Switch Connecting Network Devices Making Network ConnectionsTwisted-Pair Devices Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Network Wiring ConnectionsNetwork Wiring Connections Fiber Optic SFP DevicesGbps Fiber Optic Connections Making Connections to SFP TransceiversConnecting to an XFP Transceiver Gbps Ethernet Collision Domain Connectivity Rules1000BASE-T Cable Requirements Mbps Ethernet Collision Domain Mbps Gigabit Ethernet Collision DomainMbps Fast Ethernet Collision Domain Cable Labeling and Connection Records Appendix a Troubleshooting Diagnosing Switch IndicatorsIn-Band Access Power and Cooling ProblemsInstallation Stack Troubleshooting Troubleshooting 10BASE-T/100BASE-TX Pin Assignments Appendix B CablesTwisted-Pair Cable and Pin Assignments Straight-Through Wiring Crossover WiringFigure B-3 Crossover Wiring 1000BASE-T Pin AssignmentsFiber Standards Cable Testing for Existing Category 5 CableAdjusting Existing Category 5 Cabling to Run 1000BASE-T Non-Zero Dispersion-Shifted Dispersion-Shifted FiberNm Loss-Minimized Cables Appendix C Specifications Physical CharacteristicsWeight TemperaturePower Supply Power ConsumptionStandards Switch FeaturesManagement Features Compliances Extender ModulesGlossary 10BASE-TCSMA/CD Ieee TIA Index NumericsIndex-2 Index-3 Index Index-4 Page 150200000054A R01

SMC8926EM, SMC8950EM specifications

SMC Networks has established itself as a prominent player in the networking and connectivity market, offering a range of professional solutions designed for small to medium-sized enterprises. Among its notable products are the SMC8950EM and the SMC8926EM, two advanced Ethernet switches that cater to the need for reliable and efficient networking.

The SMC8950EM is an enterprise-class managed switch that delivers high-performance capability with 48 10/100/1000Mbps Ethernet ports, providing extensive connectivity for various devices on a local area network. Its architecture is designed to handle high traffic loads, making it apt for environments where speed and reliability are paramount. This switch supports multiple protocols, including VLANs, which allow for flexible network segmentation and improved security. The SMC8950EM also features several Layer 2 and Layer 3 management protocols, enabling the switch to support advanced routing, Quality of Service (QoS), and network traffic management.

On the other hand, the SMC8926EM is a compact yet powerful switch equipped with 24 10/100/1000Mbps Ethernet ports, making it ideal for smaller installations or branch offices that require scalability without compromising on performance. With support for Power over Ethernet (PoE), the SMC8926EM simplifies the implementation of IP phones, security cameras, and wireless access points, making it particularly useful in environments where power outlets may be limited.

Both models employ advanced technologies, such as network storm control and link aggregation, to enhance performance and ensure seamless connectivity. They also provide comprehensive network monitoring capabilities, allowing administrators to manage traffic and troubleshoot issues proactively. The user-friendly web interface facilitates easier management and configuration, while SNMP support enables integration with existing network management systems for enhanced visibility and control.

Ultimately, the SMC8950EM and SMC8926EM represent robust networking solutions that address the challenges faced by modern enterprises. With their combination of high performance, advanced features, and scalability, these switches are well-suited for companies looking to build a reliable and efficient network infrastructure. Whether for a large organization or a small branch office, SMC Networks continues to deliver products that meet the evolving needs of users worldwide.
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