From: Sebastian Moeller <moeller0@gmx.de>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: Aaron Wood <woody77@gmail.com>, bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] Still seeing bloat with a DOCSIS 3.1 modem
Date: Wed, 25 Mar 2020 10:04:32 +0100 [thread overview]
Message-ID: <D12A75D5-5A19-42FA-A5DE-8CEDA95B7050@gmx.de> (raw)
In-Reply-To: <875zesret5.fsf@toke.dk>
Hi Toke,
> On Mar 25, 2020, at 09:58, Toke Høiland-Jørgensen <toke@toke.dk> wrote:
>
> Aaron Wood <woody77@gmail.com> writes:
>
>> I recently upgraded service from 150up, 10dn Mbps to xfinity's gigabit
>> (with 35Mbps up) tier, and picked up a DOCSIS 3.1 modem to go with it.
>>
>> Flent test results are here:
>> https://burntchrome.blogspot.com/2020/03/bufferbloat-with-comcast-gigabit-with.html
>>
>> tl/dr; 1000ms of upstream bufferbloat
>>
>> But it's DOCSIS 3.1, so why isn't PIE working? Theory: It's in DOCSIS 3.0
>> upstream mode based on the status LEDs. Hopefully it will go away if I can
>> convince it to run in DOCSIS 3.1 mode.
>
> I think that while PIE is "mandatory to implement" in DOCSIS 3.1, the
> ISP still has to turn it on? So maybe yelling at them will work? (ha!)
>
>> At the moment, however, my WRT1900AC isn't up to the task of dealing with
>> these sorts of downstream rates.
>>
>> So I'm looking at the apu2, which from this post:
>> https://forum.openwrt.org/t/comparative-throughput-testing-including-nat-sqm-wireguard-and-openvpn/44724
>>
>> Will certainly get most of the way there.
>
> My Turris Omnia is doing fine on my 1Gbps connection (although that
> hardly suffers from bloat, so I'm not doing any shaping; did try it
> though, and it has no problem with running CAKE at 1Gbps).
Well, doing local network flent RRUL stress tests indicated that my omnia (at that time with TOS4/Openwrt18) only allowed up to 500/500 Mbps shaping with bi directionally saturating traffic with full MTU-sized packets. So I undirectional CAKE at 1Gbps can work, but under full load, I did not manage that, what did I wrong?
Best Regards
Sebastian
>
> -Toke
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
next prev parent reply other threads:[~2020-03-25 9:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-25 5:01 Aaron Wood
2020-03-25 5:02 ` Aaron Wood
2020-03-25 5:29 ` Matt Taggart
2020-03-25 6:19 ` Sebastian Moeller
2020-03-25 15:46 ` Aaron Wood
2020-03-25 8:58 ` Toke Høiland-Jørgensen
2020-03-25 9:04 ` Sebastian Moeller [this message]
2020-03-25 11:03 ` Toke Høiland-Jørgensen
2020-03-25 15:44 ` Aaron Wood
2020-03-25 15:57 ` Aaron Wood
2020-03-25 19:18 ` Dave Taht
2020-03-28 22:46 ` Aaron Wood
2020-03-29 19:58 ` Dave Taht
2020-03-29 23:52 ` Aaron Wood
2020-03-25 18:13 ` Jim Gettys
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