Definitions Edit

Router flapping

[o]ccurs when a malfunctioning router keeps going in and out of service, forcing neighboring routers to keep updating their routing tables, until all of the processing power is being siphoned off and no traffic is being forwarded, resulting in an Internet brownout.[1]
[is] [a] router that transmits routing updates alternately advertising a destination network first via one route, then via a different route.[2]

References Edit

  1. NSTAC Report to the President on Communications Resiliency, at C-6.
  2. NIST Special Publication 800-82, at B-7.

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