A route that is flapping receives a penalty of 1000 for each flap. When the accumulated penalty reaches a configurable limit, BGP suppresses advertisements of the route even if the route is announced. The accumulated penalty is decremented by the half-life time. When the accumulated penalty is less than the reuse limit, the route is advertised again if it has not been withdrawn.
For example, a route with a penalty of 3000 will take the half-life time of 15 minutes to cut the penalty in half and reach the reuse penalty of 1500, at which point the route will be advertised again. Similarly, a route with a penalty of 6000 will take 15 minutes to cut the penalty in half and reach a penalty of 3000. It will then an additional 15 minutes to cut the penalty in half again and reach the reuse penalty of 1500. The total decay time from 6000 to 1500 (i.e., reuse) with a half-life time of 15 will be 30 minutes. Please see "RFC 2439" for more details.
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...