Operation

• Add penalty (1000) for each flap

  • Change in attribute gets penalty of 500

• Exponentially decay penalty

  • Half life determines decay rate

• Penalty above suppress-limit

  • Do not advertise route to BGP peers

• Penalty decayed below reuse-limit

  • Re-advertise route to BGP peers
  • Penalty reset to zero when it is half of reuse-limit

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