[Cerowrt-devel] https://tools.ietf.org/html/draft-ietf-tsvwg-le-phb-06 is in last call

[Dave Taht]

Just ressurrecting this old thread for review now that this is an
official RFC. I note also that the NQB diffserv codepoint is entering
last call also.

https://tools.ietf.org/html/draft-white-tsvwg-nqb-02

On Sun, Feb 3, 2019 at 10:39 AM Dave Taht <dave.taht at gmail.com> wrote:
>
> And seems likely to be adopted.
>
> There seems to be an urge to make this codepoint starvable, which
> since I ascribe to nagle's dictum "every application has a right to
> one packet in the network" - doesn't work for me - but the draft is
> vaguely worded enough to just start dumping this codepoint into the
> background queue of both sqm and cake and worry about it in a decade
> or three.
>
> it's 000001 which I guess is:
>
> diff --git a/sch_cake.c b/sch_cake.c
> index 3a26db0..67263b3 100644
> --- a/sch_cake.c
> +++ b/sch_cake.c
> @@ -343,7 +343,7 @@ static const u8 diffserv4[] = {
>  };
>
>  static const u8 diffserv3[] = {
> -       0, 0, 0, 0, 2, 0, 0, 0,
> +       0, 1, 0, 0, 2, 0, 0, 0,
>         1, 0, 0, 0, 0, 0, 0, 0,
>         0, 0, 0, 0, 0, 0, 0, 0,
>         0, 0, 0, 0, 0, 0, 0, 0,
>
> (or is that reversed? my big endian/little endian chops scuks, and
> nobody modified the gen_cake_const tool to match what cake expects
> now)
>
> on my off days I kind of wish the diffserv lookup we do in cake had
> managed to make it into the linux mqprio/prio stuff by default.
>
> --
>
> Dave Täht
> CTO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-831-205-9740



-- 

Dave Täht
CTO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-831-205-9740