Re: [iccrg] New draft submitted for draft-pan-tsvwg-hpccplus-02.txt

Interesting work!

It'd be good to know more precise requirements on INT to help both vendor
supports (beside MLX) and CC evaluation

For example

qlen         | Telemetry info: link j queue length

qlen == instant qlen snapshot at packet ingress or egress, on a
per-port-per-queue basis, or some windowed-avg / aggregate etc.

On Mon, Dec 14, 2020 at 4:11 PM Rui, Miao <miao.rui@alibaba-inc.com> wrote:

> Hello ICCRG members,
>
> Alibaba, Intel, and Mellanox have worked on an INT-based High Precision
> Congestion Control algorithm: HPCC++. We have posted an initial draft that
> can be found at
> https://www.ietf.org/id/draft-pan-tsvwg-hpccplus-02.txt
>
> The key design choice of HPCC++ is to use inband telemetry to provide
> fine-grained load information, such as queue size and accumulated tx
> traffic to compute precise flow rates. This has two major benefits:
> 1. HPCC++ can quickly converge to proper flow rates to highly utilize
> bandwidth while avoiding congestion;
> 2. HPCC++ can consistently maintain a close-to-zero queue for low latency.
>
> We would love to hear your comments and feedback.
>
> Best regards,
>
> Rui Miao
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