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From: moeller0 <moeller0@gmx.de>
In-Reply-To: <alpine.DEB.2.02.1605200638530.1578@nftneq.ynat.uz>
Date: Fri, 20 May 2016 15:46:44 +0200
Cc: Jonathan Morton <chromatix99@gmail.com>, cake@lists.bufferbloat.net,
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To: David Lang <david@lang.hm>
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Subject: Re: [Cake] Proposing COBALT
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> On May 20, 2016, at 15:41 , David Lang <david@lang.hm> wrote:
>=20
> On Fri, 20 May 2016, Jonathan Morton wrote:
>=20
>> Normal traffic does not include large numbers of fragmented packets =
(I would expect a mere handful from certain one-shot request-response =
protocols which can produce large responses), so it is better to shunt =
them to a single queue per host-pair.
>=20
> I don't agree with this.
>=20
> Normal traffic on a well setup network should not include large =
numbers of fragmented packets. But I have seen too many networks that =
fragment almost everything as a result of there being a hop that goes =
through one or more tunneling layers that lower the effective MTU (and =
no, path mtu discovery does not always work)

	True, do you have a cheaper idea of getting the flow identity =
cheaply from fragmented packets, short of ressembly ;) ?

Best Regards
	Sebastian

>=20
> David Lang