MRV Communications MR2228-S2C 1000BASE-T, Auto-Negotiation, Bandwidth, Collision, End Station

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IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/125, 62.5/125 or 9/125 micron core fiber cable.

1000BASE-LH

Specification for long-haul Gigabit Ethernet over two strands of 9/125 micron core fiber cable.

1000BASE-T

IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category 5, 5e or 6 twisted-pair cable (using all four wire pairs).

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, and 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.

Gigabit Ethernet

A 1000 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.

IEEE

Institute of Electrical and Electronic Engineers.

IEEE 802.3

Defines carrier sense multiple access with collision detection (CSMA/CD) access

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Contents Stackable Fast Ethernet Switch Installation Guide Installation Guide Contents Appendix B Cables Switch Architecture IntroductionOverview 1000BASE-T/SFP Ports Description of HardwareNetwork Management Options 10BASE-T/100BASE-TX PortsPort and System Status LEDs Stacking PortsCondition Status Port Status LEDsSystem Status LEDs Power Supply ReceptaclesPerformance Features and BenefitsConnectivity ExpandabilityManagement Collapsed Backbone Introduction to SwitchingNetwork Planning Application ExamplesCollapsed Backbone Network Aggregation PlanNetwork Aggregation Plan Remote Connections with Fiber CableRemote Connections with Fiber Cable Making Vlan ConnectionsMaking Vlan Connections Application NotesInstalling the Switch Selecting a SiteEthernet Cabling Optional Rack-Mounting Equipment Equipment ChecklistPackage Contents MountingAttaching the Brackets Rack MountingAttaching the Adhesive Feet Desktop or Shelf MountingConnecting Switches in a Stack Installing an Optional SFP TransceiverConnecting Switches in a Ring-topology Stack Connecting to a Power SourceWiring Map for Serial Cable Connecting to the Console PortDTE Port Twisted-Pair Devices Connecting Network DevicesConnecting to PCs, Servers, Hubs and Switches Making Network ConnectionsMaking Twisted-Pair Connections Network Wiring ConnectionsFiber Optic SFP Devices Network Wiring Connections1000BASE-T Cable Requirements Connectivity RulesMbps Ethernet Collision Domain Cable Labeling and Connection RecordsMbps Gigabit Ethernet Collision Domain Mbps Fast Ethernet Collision DomainPage Table A-1. Troubleshooting Chart Symptom Action Appendix a TroubleshootingDiagnosing Switch Indicators Power and Cooling ProblemsInstallation In-Band AccessStack Troubleshooting Appendix B Cables Twisted-Pair Cable and Pin Assignments10BASE-T/100BASE-TX Pin Assignments Crossover Wiring Straight-Through Wiring1000BASE-T Pin Assignments Cable Testing for Existing Category 5 Cable Adjusting Existing Category 5 Cabling to Run 1000BASE-TFiber Standards Appendix C Specifications Throughput Forwarding ModeManagement Features In-Band Management SafetyCollision 1000BASE-TAuto-Negotiation BandwidthIeee 802.3ab Media Access Control MACRJ-45 Connector Switched Ports