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Subject: Re: cake: changing bandwidth on the rate limiter dynamically
From: Jonathan Morton <chromatix99@gmail.com>
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Date: Fri, 12 Dec 2014 17:59:45 +0200
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To: Dave Taht <dave.taht@gmail.com>
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> On 12 Dec, 2014, at 17:52, Dave Taht <dave.taht@gmail.com> wrote:
>=20
> Now, it turns out that cake makes altering the bandwidth really easy,
> you can just change it from the command line.
>=20
> http://pastebin.com/Jr9s6EBW
>=20
> I am pretty sure changing it is currently pretty damaging to stuff in
> flight (don't remember), but it needent be.

I don=E2=80=99t think it is harmful.  All that happens is that the =
packet issue deadlines start to be advanced at a different rate with =
each packet transmitted.  A change in the rate by that mechanism =
doesn=E2=80=99t cause any packet flushing or other trouble.

The flow-discrimination mode and the diffserv mode can also be changed =
in the same way, but this is more disruptive; it may at least result in =
some packets arriving out of order within flows, if not also some =
spurious drops.  But the network can tolerate that happening =
occasionally.

 - Jonathan Morton