VNC Loop

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A Virtual Network Computing Loop (shortening of VNC Loopback) is a simple fractal pattern, depicting exact self-similarity, that develops after one or more computers VNC into itself or into each other in a logically organized ring topology. Depending upon the implementation of VNC being used or upon its specific configuration, such an attempt to initiate a VNC Loop using one or two computers may not be allowed, although a workaround to this is to use more than two computers. Some other implementations, especially on relatively slower computers, may inadvertently cause one or more of the connected computers to freeze as a VNC Loop develops and as long as it persists. One potential way to break a VNC Loop on a completely unresponsive computer is to physically disconnect its network cable. During a VNC Loop, control of the mouse cursor may at times seem erratic, but this is a direct and predictable effect of the loop.

In a stable VNC Loop, the traversal of screen data feedback between the computers can exhibit crude short-term memory. Changes made on one computer, for example activating and then deactivating the Start button in Microsoft Windows, take time to propagate down the VNC Loop.

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