It is very common and often referred to as jitter. A variation, called scaled ttl, was nicely discussed in this video. https://www.youtube.com/watch?v=kxMKnx__

It is very common and often referred to as jitter. A variation, called scaled ttl, was nicely discussed in this video. https://www.youtube.com/watch?v=kxMKnx__uso https://www.youtube.com/watch?v=kxMKnx__uso