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  2. Connection Machine - Wikipedia

    en.wikipedia.org/wiki/Connection_Machine

    The physical form of the CM-1, CM-2, and CM-200 chassis was a cube-of-cubes, referencing the machine's internal 12-dimensional hypercube network, with the red light-emitting diodes (LEDs), by default indicating the processor status, visible through the doors of each cube. By default, when a processor is executing an instruction, its LED is on.

  3. Route flapping - Wikipedia

    en.wikipedia.org/wiki/Route_flapping

    Route flapping is caused by pathological conditions (hardware errors, software errors, configuration errors, intermittent errors in communications links, unreliable connections, etc.) within the network which cause certain reachability information to be repeatedly advertised and withdrawn.

  4. Router (computing) - Wikipedia

    en.wikipedia.org/wiki/Router_(computing)

    A router in a local area network (LAN) of a single organization is called an interior router. A router that is operated in the Internet backbone is described as exterior router. While a router that connects a LAN with the Internet or a wide area network (WAN) is called a border router, or gateway router. [24]

  5. List of router and firewall distributions - Wikipedia

    en.wikipedia.org/wiki/List_of_router_and...

    Red Hat Enterprise Linux derivative: x86, x86-64: GPL and others: Free or paid registration: Router and firewall for SMBs with network, gateway and server modules accessed through WebConfig. A paid registration for extra online services is available, but not necessary for operation of the product. Cumulus Linux: Active: Debian derivative?

  6. Rules for traffic lights - Wikipedia

    en.wikipedia.org/wiki/Rules_for_traffic_lights

    In some jurisdictions (such as New York City), [citation needed] there are ordinances or by-laws against "gridlocking".A motorist entering an intersection (even if on a green light) but unable to proceed and who gets stranded in the intersection (when traffic ahead fails to proceed), and who remains after the light turns red (thus blocking traffic from other directions) may be cited.

  7. Optical communication - Wikipedia

    en.wikipedia.org/wiki/Optical_communication

    The light gun's lamp has a focused bright beam capable of emitting three different colors: red, white and green. These colors may be flashing or steady, and provide different instructions to aircraft in flight or on the ground (for example, "cleared to land" or "cleared for takeoff").

  8. Provider edge router - Wikipedia

    en.wikipedia.org/wiki/Provider_Edge_Router

    A provider edge router (PE router) is a router between one network service provider's area and areas administered by other network providers. [1] A network provider is usually an Internet service provider as well (or only that). The term PE router covers equipment capable of a broad range of routing protocols, notably:

  9. ICMP Router Discovery Protocol - Wikipedia

    en.wikipedia.org/wiki/ICMP_Router_Discovery_Protocol

    In computer networking, the ICMP Internet Router Discovery Protocol (IRDP), also called the Internet Router Discovery Protocol, [1] is a protocol for computer hosts to discover the presence and location of routers on their IPv4 local area network. Router discovery is useful for accessing computer systems on other nonlocal area networks. [2]