Infrastructure Definitions

  • E

    enterprise WAN

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

  • F

    File Transfer Protocol (FTP)

    File Transfer Protocol (FTP) is a client-server standard used to transfer files between computers over the Internet using control and data channels.

  • G

    Generic Routing Encapsulation (GRE)

    Generic Routing Encapsulation (GRE) is a simple protocol that encapsulates packets in order to route other protocols over IP networks, as defined by RFC 2784.

  • I

    IPv6 (Internet Protocol Version 6)

    IPv6 (Internet Protocol Version 6) is the latest level of the Internet Protocol (IP) and is now included as part of IP support in many products including the major computer operating systems.

  • ISDN (Integrated Services Digital Network)

    ISDN (Integrated Services Digital Network) is a set of CCITT/ITU standards for digital transmission over ordinary telephone copper wire, as well as over other media.

  • M

    Multiprotocol Label Switching (MPLS)

    Definition: Learn what MPLS (Multiprotocol Label Switching) is and why allowing packets to be forwarded at the Layer 2 (switching) level rather than at the Layer 3 (routing) level is important for Quality of Service (QoS).

  • N

    Network Address Translation (NAT)

    A NAT (Network Address Translation or Network Address Translator) is the virtualization of Internet Protocol (IP) addresses. NAT helps improve security and decrease the number of IP addresses an organization needs.

  • O

    OSPF (Open Shortest Path First)

    The OSPF router protocol is used to find the best path for packets as they pass through a set of connected networks. OSPF is one of several Interior Gateway Protocols that replaces the Routing Information Protocol (RIP), an older routing protocol that is installed in many of today's corporate networks.

  • W

    WAN (wide area network)

    A wide area network (WAN) is a geographically distributed telecommunications network that interconnects multiple local area networks (LANs).

  • Wide Area Ethernet (WAE)

    Wide Area Ethernet (WAE) or Ethernet WAN (also sometimes referred to as fiber or LAN extension service ) is a network carrier service that delivers high-speed wide area network (WAN) connectivity, utilizing Ethernet as the connection method. Positioned as an alternative to traditional wide area connections such as leased line, frame relay or T1 services, Wide Area Ethernet simplifies linking remote sites and enables bandwidth-heavy applications such as multicast video streaming.

  • wireless WAN (Wireless Wide Area Network)

    A wireless WAN is a wide area network in which separate areas of coverage or cells are connected wirelessly to provide service to a large geographic area.

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