Data center networks Definitions

  • A

    access layer

    The access layer is where host computers and end users connect to the network.

  • alien crosstalk (AXT)

    Alien crosstalk (AXT) is electromagnetic noise that can occur in a cable that runs alongside one or more other signal-carrying cables.

  • Andrew

    Andrew was a joint project between Carnegie-Mellon University and IBM to set up a distributed computing environment on the CMU campus.

  • C

    Categories of twisted pair cabling systems

    ANSI/EIA (American National Standards Institute/Electronic Industries Association) Standard 568 is one of several standards that specify "categories" (the singular is commonly referred to as "CAT") of twisted pair cabling systems, such as wires, junctions, and connectors.

  • coaxial cable

    Coaxial cables transmit high-frequency electrical signals through connectors without interference.

  • I

    infrastructure (IT infrastructure)

    Infrastructure is the foundation or framework that supports a system or organization.

  • L

    leaf-spine (leaf-spine architecture)

    Leaf-spine is a two-layer data center network topology that's useful for data centers that experience more east-west network traffic than north-south traffic. The topology is composed of leaf switches (to which servers and storage connect) and spine switches (to which leaf switches connect). Leaf switches mesh into the spine, forming the access layer that delivers network connection points for servers.

  • limited combustible cable (LCC)

    Limited combustible cable (LCC), also called CMP-50 cable, is fire-resistant cable with insulation made of a synthetic material called fluorinated ethylene propylene (FEP).

  • liquid-tight strain-relief connector

    A liquid-tight strain-relief connector is a special electrical connector or jacket used in cabling for electronic and computer systems where water or contaminant intrusion is a concern... (Continued)

  • M

    moves, adds and changes (MAC)

    Moves, adds and changes (MAC) keep computing equipment in line with user needs and up-to-date, with disciplined process management.

  • N

    Net-SNMP (Net Simple Network Management Protocol)

    Net-SNMP is a set of tools and libraries for implementing the Simple Network Management Protocol (SNMP) on enterprise networks.

  • Network Cabling Tutorials

    (From the Computer Technical Tutorials Directory) Network Cabling Tutorials Network Tutorial: Cabling Covers Unshielded Twisted Pair (UTP), Shielded Twisted Pair (STP), Coaxial Cable, Fiber Optic Cable, Wireless LANs, and provides some cable installation guidelines Color Cabling Shows cabling color codes for several types of copper and fiber cable.

  • O

    open data center

    An open data center is an IT facility that employs a clearly defined and standardized set of hardware and software products designed to make the data center interoperable with other IT facilities.

  • R

    raceway

    A raceway is an enclosed conduit that forms a physical pathway for electrical wiring... (Continued)

  • raised floor

    A raised floor is a data center construction model in which a slightly higher floor is constructed above the building's original concrete slab floor, leaving the open space created between the two for wiring or cooling infrastructure.

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