[Cerowrt-devel] [Bloat] tp-link request for SQM

[Wheelock, Ian]

Hi
280Mbps service with Comcast is likely the 300/10 package offering… In that case the US is limited to 10Mbps

I understand there might be some issue if 280Mbps was being processed – but in the US direction, we are not talking >>100Mbps – its about 10Mbps US, I would have thought running cake on 10Mbps US cake would not have triggered a 50% loss in performance even on this platform. Now if cake is applied to both inbound and outbound traffic then having to deal with ~280Mbps might be tough. In the case of DOCSIS AQM, PIE runs in the GW only on outbound traffic.



From: Bloat <bloat-bounces at lists.bufferbloat.net> on behalf of Sebastian Moeller <moeller0 at gmx.de>
Date: Friday 3 December 2021 at 10:40
To: Kenneth Porter <shiva at sewingwitch.com>
Cc: cerowrt-devel <cerowrt-devel at lists.bufferbloat.net>, bloat <bloat at lists.bufferbloat.net>
Subject: Re: [Bloat] tp-link request for SQM

> On Dec 3, 2021, at 11:10, Kenneth Porter wrote: > > --On Thursday, December 02, 2021 10:48 AM -0800 Dave Taht wrote: > >> tp-link, is, so far as I know,
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> On Dec 3, 2021, at 11:10, Kenneth Porter <shiva at sewingwitch.com> wrote:

>

> --On Thursday, December 02, 2021 10:48 AM -0800 Dave Taht <dave.taht at gmail.com> wrote:

>

>> tp-link, is, so far as I know, the last major home router vendor NOT

>> shipping a SQM system. Perhaps this could be modded up with someones

>> with accounts?

>>

>> https://secure-web.cisco.com/11xOUC1zY509JqNeDmjflwH4rSaowAKbPpsMSSKsLaElYT5bKwUqpCvIP8pSIJN0xDSludBbilZxiCWeGyX9QBVXQIYGg4aeJlOIvbdBnAe-AGULG-eanWnKwFWAYCjRhnT-GbDz2UCRsr4YTmHkHQVjfSafvUq4KtMTkOBAhmvbMckt7aS8HDyLXxNQDxuTyJebXHYNYvNKVXNoeU562qbXBhB-ud2slR8bxmp5SrW2zaA0BTM-dK0S4ryLxffAxnZ4JjFcLRpX1I4xL1vIy1r3HCDpAwFidpPnHP-jznaHho4VzKVmEn5T4fAgYwSA-_7WEx2qqWgizSp8HE-kOmQ/https%3A%2F%2Fcommunity.tp-link.com%2Fus%2Fhome%2Fforum%2Ftopic%2F511156

>

> I just signed up an account and will add my vote.

>

> I just bought an Archer 20 to replace my old 2016 Zyxel running OpenWrt. I'd found it by looking at various reviews of "best OpenWrt router for 2021". I just updated my Zyxel firmware from v18 to v20 firmware. I get about 280 Mbps from Xfinity. I turned on cake and it dropped by 50%! So I think the old router's CPU isn't up to it. I'll be swapping in the TP-Link soon so I can turn on cake without the big performance hit.



        Getting low latency traffic shaping to work in a robust and reliable way above say ~100Mbps is still a challenge even for relatively recent router SoCs. Modern multicore SoCs upped the ante in the things-to-look-out for area by adding CPU power-saving (especially frequency scaling) and load distribution over CPUs to the mix... Now even something like a raspberry pi 4B with an additional well-selected USB3 gigabit ethernet dongle (costing less than 100 EUR all in all) will allow cake up to 1/1 Gbps but still requires careful configuration to do so. No idea whether an archer 20 will do (not even sure what model that is, here in Germany I see either an C20 or an AX20 but no plain unadorned 20). If you should try OpenWrt on that thing, the OpenWrt forum is a good place to ask for configuration advice for specific models (will obviously not help if you stick to the manufacturer's firmware).



Regards

        Sebastian







>

>

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