Re: [L4s-discuss] dualpi2 & iproute2 - how to get latest L4S ECN coupled dual queue?

[Bob Briscoe <[e-mail]>]

Bob, see [BB]

On 12/09/2023 21:46, rjmcmahon wrote:
> Hi All,
>
> I'm confused about how to best try dualpi2 on a modern kernel, e.g. 
> Fedora 38, in a lab environment
>
> [rjmcmahon@fedora iproute2-6.5.0]$ uname -r
> 6.4.12-200.fc38.x86_64
>
> It looks that the code for tc qdisc dualpie2 (via ipoute2) is not 
> released from kernel.org
>
> https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
>
> The following web site looks inactive for years - is this the latest 
> code and, if so, what's the debian released that it best matches?
>
> https://github.com/L4STeam/iproute2

[BB] It's not mainlined yet. Folks are working on it.

Start from the testing branch here:
https://github.com/L4STeam/linux

It's one behind the latest long-term stable kernel.
On 6 Nov'22, Neal merged it with the latest at the time (v5.15.72). But 
then soon after (11 Dec'22) 6.1 became the next LTS
I'll ask them to respond here with when it's expected to merge with the 
latest again.


BTW, to improve search results, it's dualpi2 without an 'E'.

Cheers


'nother Bob

>
> Finally, I noticed Broadcom Jericho 3 merchant silicon DNX family has 
> L4S ECN marking & couple dual queue support but I don't seem to be 
> able to find a system integrator supporting it. (Maybe the generative 
> AI is causing network engineers to ignore billions of end users and 
> their devices that require low latency services?)
>
> Thanks,
> Bob
>

-- 
________________________________________________________________
Bob Briscoe                               http://bobbriscoe.net/