Example of BGP session flapping detection

BGP session flapping detectionclarifies by example how
determines that a BGP protocol endpoint and associated BGP session are flapping.
BGP session flapping detection
The example assumes that the Trap_Time_Window is 30 seconds, the Trap_Count_Threshold is 3, and the FLAP_Clear_Window is 60 minutes.
performs the following actions:
  1. As soon as
    receives a bgpEstablished trap for the BGP protocol endpoint, it begins counting.
  2. When
    receives three or more traps within the 30-second trap time window, it considers the BGP protocol endpoint to be flapping and sets the endpoint’s IsFlapping attribute (IsFlapping = TRUE).
  3. continues to receive traps for 75 seconds after the initial trap, which results in a stable time of 75 seconds.
  4. Network Protocol Manager for BGP clears the endpoint’s IsFlapping attribute (IsFlapping = FALSE) at the end of the stable time.