From: Eric Raymond <esr@thyrsus.com>
To: Bill Sommerfeld <wsommerfeld@google.com>
Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] First draft of complete "Bufferbloat And You" enclosed.
Date: Wed, 9 Feb 2011 10:50:22 -0500 [thread overview]
Message-ID: <20110209155022.GA13643@thyrsus.com> (raw)
In-Reply-To: <AANLkTimrBhwgBguJrrtm7dE1=OsHTb42=BbLP__k=OCA@mail.gmail.com>
Bill Sommerfeld <wsommerfeld@google.com>:
> On Tue, Feb 8, 2011 at 10:18, Eric Raymond <esr@thyrsus.com> wrote:
> > I don't understand "ack clocking".
>
> before you go any further, download and read the Van Jacobsen/Karels
> paper "Congestion Avoidance and Control":
>
> ftp://ftp.ee.lbl.gov/papers/congavoid.ps.Z
>
> in a sliding-window protocol like TCP the arrival of an ack lets the
> sender know that the receiver has buffer space for the next packet and
> permits the sender to transmit more data; the acks form a kind of
> "clock" that signals that data has left the network and that there is
> room for more.
Your summary is actually a more concise explanation of "ack clocking" than
the paper offers, but thanks. Reading that was quite useful. I think I
shall have to reread it a couple of times to grok in fullness, and expect
the effort to be wll worthwhile.
--
<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
next prev parent reply other threads:[~2011-02-09 15:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-05 13:23 Eric Raymond
2011-02-05 13:42 ` Jim Gettys
2011-02-05 15:12 ` Dave Täht
2011-02-05 15:46 ` Dave Täht
2011-02-06 13:37 ` Eric Raymond
2011-02-05 17:56 ` richard
2011-02-05 19:48 ` richard
2011-02-05 22:12 ` Dave Täht
2011-02-06 1:29 ` richard
2011-02-06 2:35 ` Dave Täht
2011-02-06 2:50 ` richard
2011-02-08 15:17 ` Justin McCann
2011-02-08 18:18 ` Eric Raymond
2011-02-08 18:31 ` richard
2011-02-08 18:50 ` Bill Sommerfeld
2011-02-09 15:50 ` Eric Raymond [this message]
2011-02-08 20:10 ` Sean Conner
2011-02-09 4:24 ` Justin McCann
2011-02-10 14:55 ` Jim Gettys
2011-02-10 17:50 ` Dave Täht
2011-02-08 19:43 ` Juliusz Chroboczek
2011-02-08 19:52 ` richard
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