Hi Neal,
> On May 13, 2019, at 17:13, Neal Cardwell <[email protected]> wrote: > > Thanks for the details! > > Given that DOCSIS 3.1 (released initially in 2013) has many revisions - > https://specification-search.cablelabs.com/CM-SP-MULPIv3.1?v=03 - and > low-latency DOCSIS and L4S was added in 2019 (CM-SP-MULPIv3.1-I17-190121), I > had been under the impression that the PIE AQM for upstream traffic was also > added in some later revision. But I do see now that the PIE AQM for upstream > traffic was in Annex M of the initial 3.1 spec (CM-SP-MULPIv3.1-I01-131029). Yes, that was actually pretty col to see this as a requirement from day 1. It is a bit of a downer how long the ISPs take/took to actually roll-out docsis 3.1. > > Does anyone happen to know if (and if so, how widely) the major cable ISPs > world-wide enable the upstream PIE AQM functionality? I have no clue, but I believe Greg White (CC'd) might have more insight in this. Best Regards Sebastian > > neal > > > From: Sebastian Moeller <[email protected]> > Date: Mon, May 13, 2019 at 5:16 AM > To: bloat, Neal Cardwell > > Hi Neal, > > As far as I can tell the PIE aqm is mandatory in all DOCSIS 3.1 CPEs, do Al > you need is a modem certified for 3.1 and probably also an DOCSIS ISP > supplying 3.1 services (I assume the AQM will only be engaged in a docsis 3.1 > environment), as in DOCSIS the ISP basically has control over the CPE, so you > would need their cooperation. Not every DOCSIS ISP will provision any > customer modem, but I assume you have enough leverage to make this happen. > > Anyway according to the spec sheets: > AVM Fritzbox 6591 > Netgear CM1000-1AZNAS > Arris SB8200 > Motorola MB8600 > should give you what you want. > > Best Reards > Sebastian > > P.S.: I would love to hear your results, as information about the effects of > docsis pie in the wild is quite limited... > > > On May 12, 2019 11:24:50 PM GMT+02:00, Neal Cardwell <[email protected]> > wrote: > Anyone have a pointer to a cable modem model that is available for purchase > and implements the DOCSIS 3.1 PIE mechanism? (So far, my searches for this > have only found other people asking this question, rather than the answer. > Apologies if I missed something that should be easy to find.) > > I'm curious to have one for testing with BBR v2. I'm aware of the Linux PIE > implementation, but it would be nice to have the actual cable modem version > to play with as well. > > Thanks! > neal > _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
