On Mon Mar 18 21:06:57 EDT 2019, Bob Briscoe said:

>>> 

* In summer 2017 CableLabs started work on Low Latency DOCSIS, and hired

me later in the year to help develop and specify it, along with support

for L4S

   o In Jan 2019 the Low Latency DOCSIS spec was published and is now

being implemented.

   o You can find the primary companies involved at the end of the White

Paper.

https://cablela.bs/low-latency-docsis-technology-overview-february-2019

   o Operators:

     Liberty Global

     Charter

     Rogers

     Comcast

     Shaw

     Cox Communications

o Equipment vendors

     ARRIS

     Huawei

     Broadcom

     Intel

     Casa

     Nokia

     Cisco

     Videotron

>>> 

Broadcom has been deeply involved in developing the Low Latency DOCSIS cable industry specification that Bob Briscoe mentioned.  We concur with the L4S use of ECT(1).  L4S can be implemented either in a dual-queue or an fq implementation. SCE cannot be implemented with a dual-queue implementation; the only way to support it is with an fq implementation.  An fq implementation is incompatible with the Low Latency DOCSIS specification developed within the cable industry.

Victor