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 >
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