From: David Lang <david@lang.hm>
To: Tianhe <ptq008@gmail.com>
Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] Does employing a AQM on the home router also solve bufferbloat between home router and upstream devices?
Date: Mon, 1 Jun 2020 19:58:58 -0700 (PDT) [thread overview]
Message-ID: <nycvar.QRO.7.76.6.2006011954530.16262@qynat-yncgbc> (raw)
In-Reply-To: <CAKomtWR0+s_uqVUxcg37DuUjFpse3p6uyetwcfU4omcudFLOvg@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1944 bytes --]
a normal smart queue will solve the problem on any links it's sending to, so it
will solve the problem on the upstream connection to your ISP.
to address the downstream side, you either need a smart queue on the ISP side,
or you need to play 'interesting' games with acks to throttle the senders so
that they don't overwelm the downstream.
cake and some other options do these downtream tricks, but it would be better to
have a smart queue on the ISP side.
smart queueing only matters on whatever link is the bottleneck, on the other
links, the queue sizes are zero.
David Lang
On Tue, 2 Jun 2020, Tianhe wrote:
> Date: Tue, 2 Jun 2020 10:49:15 +0800
> From: Tianhe <ptq008@gmail.com>
> To: bloat@lists.bufferbloat.net
> Subject: [Bloat] Does employing a AQM on the home router also solve
> bufferbloat between home router and upstream devices?
>
> Hi there. I've read some materials from bufferbloat.net and other sites,
> trying to understand the problem as best as I can.
>
> And I have a question when reading this:
>
> From
> https://www.bufferbloat.net/projects/bloat/wiki/What_can_I_do_about_Bufferbloat/
> , it says:
>
> Once you fix it for your own network, it’ll stay fixed for all time, and
>> you won’t be subject to changing practices at your ISP or other vendors.
>>
>
> What does it mean?
>
> Does it mean that :
>
> if I employ a Smart Queue Management algorithms on my home router, it only
> solves the bufferbloat problem between my home devices (desktop, laptop
> ,cellphone) to my home router. But the buffers between my home router to
> upstream devices (my home router ---> modem ---> ISP routers/switches) ,
> buffers between upstream devices, will still harm? So I only fix the
> bufferbloat problem on my own local network?
>
> or it mean that employing a Smart Queue Management algorithms on the home
> router also solve bufferbloat between home router and upstream devices?
>
> Thanks in advance.
>
[-- Attachment #2: Type: text/plain, Size: 140 bytes --]
_______________________________________________
Bloat mailing list
Bloat@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/bloat
next prev parent reply other threads:[~2020-06-02 2:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-02 2:49 Tianhe
2020-06-02 2:58 ` David Lang [this message]
2020-06-02 12:28 ` Mikael Abrahamsson
2020-06-02 15:45 ` Dave Taht
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://lists.bufferbloat.net/postorius/lists/bloat.lists.bufferbloat.net/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=nycvar.QRO.7.76.6.2006011954530.16262@qynat-yncgbc \
--to=david@lang.hm \
--cc=bloat@lists.bufferbloat.net \
--cc=ptq008@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox