Re: Lossy cogent p2p experiences?

4 Sep 2023

      William Herrin wrote:
...
Hi David,
That sounds like normal TCP behavior over a long fat pipe.
No, not at all. First, though you explain slow start,
it has nothing to do with long fat pipe. Long fat
pipe problem is addressed by window scaling (and SACK).

As David Hubbard wrote:

: I've got a non-rate-limited 10gig circuit

and

: The initial and recurring packet loss occurs on any flow of
: more than ~140 Mbit.

the problem is caused not by wire speed limitation of a "fat"
pipe but by artificial policing at 140M.

						Masataka Ohta