[AusNOG] the state of bufferbloat awareness and remediation in australia?

Sun Jan 26 14:18:43 EST 2020

On Sun, 26 Jan 2020, 13:38 Rob Thomas, <xrobau at gmail.com> wrote:

> Unsurprisingly to most, I'm the guy who played one of the VoIP packets
> (I'm in the blue Clearly IP shirt).
>
> After his talk at LCA, I was discussing the way to handle VoIP, and I
> mentioned that the way I do most VoIP client connections is via a
> tunnel. This allows me to put a proper queue on the tunnel ITSELF, and
> just hope that the actual outgoing link of the customer isn't
> congested.
>
> This seems to work reasonably well, and customers usually end up with
> good audio (as well as bypassing all the NAT nightmares).
>
> I'm hoping that Dave comes back next year to LCA (and for those that
> missed the announcement, it's in Canberra), and can do some more talks
> next year 8)

Networking talks will get a larger audience at a networking conference.

I doubt many on the AusNOG mailing list knew there would be a buffer bloat
related presentation at LCA, and even if so, network engineers are going to
have a harder time convincing management to pay for them to go to a week
long conference just for one or just a few relevant talks.

> --Rob
>
> On Sun, 26 Jan 2020 at 12:29, Dave Taht <dave.taht at gmail.com> wrote:
> >
> > Ladies and gentlemen! Ryan Mounce has entered the room! Ryan
> > contributed the ack-filtering code in sch_cake several years ago. All
> > Hail Ryan! Cake ( https://lwn.net/Articles/758353/ )has been available
> > out of tree for linux for 5 years (with maintained backports all the
> > way back to linux 3.10) and it finally went upstream in linux 4.19.
> > Please note that as much as I like cake, the sqm scripts go back even
> > further (and also allow for configuring not just fq_codel but pie)
> >
> > On Sat, Jan 25, 2020 at 5:52 PM Ryan Mounce <ryan at mounce.com.au> wrote:
> > >
> > > NBN Co do inject options into DHCP and PPPoE requests with the down/up
> sync rate for their wholesale xDSL services so that ISPs (RSPs in NBN
> lingo) can shape individual services correctly. I have no sense how widely
> ISPs are actually taking advantage of this.
> >
> > Well, I try to keep kicking em along. As noted in my previous message
> > we're seeing a couple ISPs in germany move on this (free.fr in france
> > adopted this stuff in 2012, everybody else is lagging somewhat :/)
> > It's only a few line of shell script hook into the negotiation phases
> > at this point. A days worth of work. Or less. And as for "correctly",
> > well, I keep hoping folk will leverage the sqm-scripts and/or cake -
> > when available. Aside from the fritzbox (which I know has fq_codel in
> > it), are there any other common home routers with a reasonably modern
> > linux or freebsd os in 'em?
> >
> > Do you have any insight into the DHCP message?
> >
> > who "owns" the end-user router in australia now?
> >
> > anyway, my talk at linux.conf.au (and blatant plug #2) is reviewed now
> > at:
> https://blog.apnic.net/2020/01/22/bufferbloat-may-be-solved-but-its-not-over-yet/
> >
> > great to see you here, ryan,
> >
> > > -Ryan
> > >
> > > On Fri, 17 Jan 2020 at 11:24, Dave Taht <dave.taht at gmail.com> wrote:
> > >>
> > >> Hi, all. I'm here at linux.conf.au having just given a talk about how
> > >> tcp works in the bufferbloated age[1].
> > >>
> > >> On my way here I stopped in for a few days with geoff huston and
> > >> george michaelson who filled my ears with the chaos of the NBN rollout
> > >> and other issues in the australian network infrastructure... and gave
> > >> me a shot at some data they had on bloat, and ecn usage in the wild
> > >> which I hope to write up over the next month or so.
> > >>
> > >> I was wondering about a few things:
> > >>
> > >> How y'all doing on eliminating bufferbloat from your networks? Using
> > >> things like fq_codel, sch_fq + bbr, etc?
> > >>
> > >> Do you have any awareness from your regulatorium?
> > >>
> > >> I see, from sites like whirlpool, that some consumer hardware here,
> > >> like the fritzbox, have fq_codel now, but it's not clear if ISPs are
> > >> actively configuring it (or what we call "sqm") yet. (theres a PPPoe
> > >> message now in use in parts of germany for up/down and frame rate
> > >> seeing increasing deployment).
> > >>
> > >> Lastly:
> > >>
> > >> Anyone need a wayward network researcher/theorist for a few weeks or
> > >> months to help address their bufferbloat issues in their stacks and
> > >> hw? - maybe not this trip but on some other occasion?
> > >> (I rather like hanging in australia)
> > >>
> > >> [1] blatant plug  http://youtu.be/ZeCIbCzGY6k
> > >>
> > >> --
> > >> Make Music, Not War
> > >>
> > >> Dave Täht
> > >> CTO, TekLibre, LLC
> > >> http://www.teklibre.com
> > >> Tel: 1-831-435-0729
> > >> _______________________________________________
> > >> AusNOG mailing list
> > >> AusNOG at lists.ausnog.net
> > >> http://lists.ausnog.net/mailman/listinfo/ausnog
> > >
> > > --
> > > Regards,
> > > Ryan Mounce
> > >
> > > ryan at mounce.com.au
> > > 0415 799 929
> > >
> > > Sent from mobile
> >
> >
> >
> > --
> > Make Music, Not War
> >
> > Dave Täht
> > CTO, TekLibre, LLC
> > http://www.teklibre.com
> > Tel: 1-831-435-0729
> > _______________________________________________
> > AusNOG mailing list
> > AusNOG at lists.ausnog.net
> > http://lists.ausnog.net/mailman/listinfo/ausnog
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20200126/44115183/attachment.html>