Hi,
it gets even much worse than that...
ping -f -q -s 198 remotebox.dyndns.org
if the size (-s option) is 198 - loss rate of 30%
if the size is 197 or 199, loss rate of 2%
Repeatable.. Sheesh..
So - your bandwidth test has to use packets of a size identical to what
you are using for the application..
Question - has anyone seen anything as crazy as this ?
Thanks,
Derek.
============================
On 01/02/12 12:30, John Carter wrote:
Hmm. Some sods think... aha, udp, no one cares if we drop those,
better never than late and all that... so those sometimes get dropped
preferentially.
Some sods configure routers to hate ICMP, so ping is no longer very
reliable.
Recommendation, use a tool that tests what you're flying. UDP packets.
ie. Use tracepath
--
Derek J Smithies Ph.D.
Christchurch,
New Zealand
-- "How did you make it work??" "the usual, got everything right"
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