[Bloat] T-Mobile LTE buffer bloat

[Jim Gettys]

On Thu, Oct 31, 2013 at 1:45 AM, Hal Murray <hmurray at megapathdsl.net> wrote:

>
> > My personal record for a mobile network is 180 seconds RTT. They *really*
> > *really* want to deliver the packets, and if the radio environment go bad
> > they'll still buffer 400 packets (or so).
>
> I've seen 50 seconds on the big-bad-internet with no radio links.  I assume
> it was a link down and some box like my DSL modem didn't flush the queue
> and/or didn't implement the corner of the RFC that says to bump the hop
> count
> every second..
>

Heh. I've seen > 60 seconds, even on WiFi, in DC on Xfinity WiFi service.

I've seen > 20 seconds over the Internet (but with a satellite link in the
way) to Peru.

Over the Acela wireless, I've seen > 90 seconds (their back haul is 3g or
4g, depending).

                         

>
> I routinely see not-quite 4 seconds on the download side of a DSL link.
>
>
> --
> These are my opinions.  I hate spam.
>
>
>
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