4 ms·

>99.99% for two tries would be a 1% drop chance Not per se. The drop chance for consecutive packets is likely correlated, such that if you know the first one w

• zamadatix 7y ago
  Depends on the cause and root question. For instance in the most common scenario of congestion routers do intelligent random drops with increasing probability as the buffer gets more full https://en.wikipedia.org/wiki/Random_early_detection https://en.wikipedia.org/wiki/Random_early_detection. The internet actually relies on this random low drop chance to make things work smoothly rather than waiting til things are failing apart to signal to streams to slow down all at once while it catches up. Same randomness with transmission bit errors which will cause drops but the randomness is not by design as much as by the way noise is what is causing those. On the other hand if the root question is if there is an outage style issue then yeah if the path to the destination is having a hard down style issue no number of packets are going to help because they are all going to drop. Likewise if the question is "on a short enough time scale is reliability of delivering a single packet somewhere on the internet ever less than 99%" then yeah somewhere there is a failure scenario and if you look at a short enough time scale any failure scenario can be made to say there is 0% reliability.