On Tue, Jul 6, 2021 at 3:28 PM Wheelock, Ian <ian.wheel...@commscope.com> wrote: > > The support for AQM (PIE) is mandatory in D3.1 modems regardless of the US > mode in use (ie sc-qam (3.0) or ofdma (3.1) upstream), so it should be > enabled.
I am under the distinct impression it is only on for ISP provided modems for at least one ISP. > Get Outlook for Android > > ________________________________ > From: Bloat <bloat-boun...@lists.bufferbloat.net> on behalf of Aaron Wood > <wood...@gmail.com> > Sent: Tuesday, July 6, 2021 11:13:59 PM > To: Livingood, Jason <jason_living...@comcast.com> > Cc: bloat@lists.bufferbloat.net <bloat@lists.bufferbloat.net> > Subject: Re: [Bloat] Really getting 1G out of ISP? > > Are these in-flux changes to where the upstream split is why some modems > report DOCSIS 3.1 downstream, but only 3.0 upstream? (and therefore aren't > enabling AQM on the upstream?) > > -Aaron > > On Tue, Jun 22, 2021 at 4:04 PM Livingood, Jason via Bloat > <bloat@lists.bufferbloat.net> wrote: > > > For DOCSIS the issue seems to be an unfortunate frequency split between up > > and downstream and use of lower efficiency coding schemes. > > Performance really takes a big step forward once a person has a D3.1 modem in > their home, bringing OFDM and OFDMA as key advancements. Also in flux at the > moment is where the upstream split is in cable networks, which are moving to > mid-split or high-split designs that bring more upstream bandwidth. As well, > over the past 18+ months, most cable networks have added substantially more > upstream channels as well as performed quite a number of fiber node splits. > And that is just below the physical layer stuff - there's also a lot of work > at the software layer for modems and CMTSes that is quite interesting. > > JL > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat -- Latest Podcast: https://www.linkedin.com/feed/update/urn:li:activity:6791014284936785920/ Dave Täht CTO, TekLibre, LLC _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat
