WAN Definitions

  • B

    branch office box (BOB)

    A Branch Office Box (BOB) is a server appliance that has been optimized to provide distributed support for simple utility functions that are required locally but are difficult to provide over a WAN... (Continued)

  • C

    capacity planning

    In information technology, capacity planning is the science and art of estimating the space, computer hardware, software and connection infrastructure resources that will be needed over some future period of time.

  • D

    dynamic multipoint VPN (DMVPN)

    A dynamic multipoint virtual private network (DMVPN) is a secure network that exchanges data between sites without needing to pass traffic through an organization's headquarter VPN server or router.

  • E

    enterprise WAN

    An enterprise WAN is a corporate network that connects geographically dispersed users areas that could be anywhere in the world.

  • Ethernet point-of-presence (EPOP)

    Ethernet point-of-presence (EPOP) is a technology developed by Level 3 Communications that provides widespread access to broadband networks. As a large network increases its bandwidth, it can include large and expanding groups of subscribers. This trend, largely the result of the deployment of fiber optic infrastructure, is expected to continue. Thus, wide-area networks (WANs) are taking on some of the characteristics previously unique to local area networks (LANs). The opposite is also true; LANs are becoming increasingly complex, resembling WANs in miniature.

  • extranet

    An extranet is a private network that uses Internet technology and the public telecommunication system to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses.

  • F

    file server

    In the client/server model, a file server is a computer responsible for the central storage and management of data files so that other computers on the same network can access the files.

  • H

    hardware load-balancing device (HLD)

    A hardware load-balancing device (HLD), also known as a layer 4-7 router, is a physical unit that directs computers to individual servers in a network, based on factors such as server processor utilization, the number of connections to a server, or the overall server performance.

  • hybrid WAN

    A hybrid WAN is a wide area network that sends traffic over two or more connection types. Hybrid WANs permit dynamic traffic engineering across both private and public domains, using a variety of connectivity options to make the best use of network resources.

  • L

    Learning Path: Telephony and Wide Area Networks

    TELEPHONY AND WIDE AREA NETWORKS...circuit - PSTN - Plain Old Telephone Service (POTS) - telephone jacks - dial-up - acoustic coupler - modem - 56flex - 56 Kbps (x2) - handshaking - V.xx standards - local loop - central office - LIDB - dedicated line - BOC - RBOC - Intelligent Network (IN) - Advanced Intelligent Network (AIN) - Signaling System 7 (SS7) - EWSD - erlang (measure of line usage) - frame - frame relay - frame relay access device (FRAD) - ATM - 2600 - ISDN - B-channel - D-channel - terminal adapter - BISDN - HDLC - IDSL - PABX - Direct Inward Dialing (DID) - Automatic Number Identification (ANI) - Dialed Number Identification Service (DNIS) - permanent virtual circuit (PVC) - switched virtual circuit - DSLAM - Voice over IP - VoxML - CAPI - TAPI - splitter - splitterless (DSL) - ATU-R - digital loop carrier View other topics for self-study by visiting our Guide to the Learning Paths.

  • load balancing

    Load balancing is a technique used to distribute workloads uniformly across servers or other compute resources to optimize network efficiency, reliability and capacity.

  • M

    mil

    mil is one of the top-level domain names that can be used when choosing a domain name.

  • N

    Network as a Service (NaaS)

    Network as a service (NaaS) is a business model for delivering enterprise-wide area network services virtually on a subscription basis.

  • P

    packet loss

    Packet loss is the failure of one or more transmitted packets to arrive at their destination... (Continued)

  • Packet Order Correction (POC)

    Packet Order Correction (POC) is a technique for dealing with out-of-order packet delivery.

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