Re: Apple ECN, Bufferbloat, CoDel (fwd)

[joel jaeggli <joelja () bogus com>]

On 6/15/15 6:19 AM, Jared Mauch wrote:
> On Sat, Jun 13, 2015 at 06:20:31PM +0200, Mikael Abrahamsson wrote:
> > Hi,
> >
> > I just want to bring to your attention the below talk (I am too lazy to
> > re-write the whole email for this slightly different audience).
> >
> > Takeaway:
> >
> > We'll see a lot of ECN enabled traffic in a few months. This shouldn't be a
> > problem. I've been doing it to all my machines for 3-5 years without ill
> > effects.

you'll also find all the networks that use the entire tos field as part
of the hash key... that's not exactly something you notice when you have
a 1:1 host to ip correspondence unless it leads to reordering. but with
stateless load balancing you can. fortunately those networks are
observably rare.

>       I recall when ECN first came out and firewalls would block it causing me
> issues on my Linux boxes sending list mail out.  It was a small enough percentage
> that I mostly ignored it, but this will cause trouble for people who still
> haven't fixed their broken firewalls.
>
>       I encourage almost everyone on nanog to watch this talk.
>
>       - Jared
>
> > ---------- Forwarded message ----------
> > Date: Sat, 13 Jun 2015 18:07:57 +0200 (CEST)
> > From: Mikael Abrahamsson <swmike () swm pp se>
> > To: bloat () lists bufferbloat net
> > Subject: Apple ECN, Bufferbloat, CoDel
> >
> > I highly encourage people to take a look at:
> >
> > https://developer.apple.com/videos/wwdc/2015/?id=719
>
> > -- 
> > Mikael Abrahamsson    email: swmike () swm pp se

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