I'm sure it's present, as a capability. I just think it's not being used (based on what I see for upstream bloat, which is >100ms without running cake in the router).
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. > > Get Outlook for Android <https://aka.ms/AAb9ysg> > > ------------------------------ > *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 > <https://secure-web.cisco.com/12r7ZmOFM8ddVde0m7xhKWGeITD3XE3Ac8lYCXdEv60KV7M2dP0FljB3D2Drve2H_DrbajVB3m_YObAyONExbkEVq1hasawuiwj6gKBkdsagSp44rWmPbd3AYBB3T_gqXzw5lJilH-KCga_T694ymSPplZtkdJyEPAxcl4cd1elFxGzE2cKv0yWsHC3rCkJRNvkbEzEF6BPvlI8csBxJLA8k4wOTd-SpoSvQodsyQp6X8hBDSoo-OtpI1sVvNo84-c585IlURf4pCCiQfyHZvkBMmb_Ee0STbfr_Q3Jqc0qHqn6wOImpTw5-rG0JZktn8QFfPuZHvwR2eSVSXMyNBSg/https%3A%2F%2Flists.bufferbloat.net%2Flistinfo%2Fbloat> > >
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