3 Nov
2012
3 Nov
'12
12:38 p.m.
You are assuming that an echo packet was sent, then there was a delay, then the echo reply was receive,d and finally the screen was updated.
How do you know that before sending echo packet 460 your computer wasn't momentarily busy, a background process fired up, something was writing to the hard disk etc, so the traceroute program paused momentarily perhaps?
James.