From: Jim Gettys <jg@freedesktop.org>
To: Hal Murray <hmurray@megapathdsl.net>
Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] T-Mobile LTE buffer bloat
Date: Fri, 1 Nov 2013 10:36:06 -0400 [thread overview]
Message-ID: <CAGhGL2ABVm+TvSxm3_DEdu2KsWx_tSwtk7Ua2yruVz_z6E0Vjw@mail.gmail.com> (raw)
In-Reply-To: <20131031054518.05622406064@ip-64-139-1-69.sjc.megapath.net>
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On Thu, Oct 31, 2013 at 1:45 AM, Hal Murray <hmurray@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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> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
>
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next prev parent reply other threads:[~2013-11-01 14:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-31 5:45 Hal Murray
2013-11-01 14:36 ` Jim Gettys [this message]
-- strict thread matches above, loose matches on Subject: below --
2013-10-30 23:25 Stephen Hemminger
2013-10-30 23:34 ` Mikael Abrahamsson
2013-10-30 23:35 ` Dave Taht
2013-10-31 0:29 ` Srikanth Sundaresan
2013-10-30 23:57 ` Stephen Hemminger
2013-10-31 0:02 ` Mikael Abrahamsson
2013-10-31 8:43 ` Dirk Kutscher
2013-10-31 0:24 ` Michael Richardson
2013-10-31 0:26 ` Mikael Abrahamsson
2013-10-31 2:04 ` Stefan Alfredsson
2013-10-31 2:32 ` Dave Taht
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