Hi JOnathan, hi Kevin,
On Jun 6, 2015, at 15:53 , Jonathan Morton <[email protected]> wrote:
> Ideally, one would read the raw sync rate out of the modem (there has to be a
> way to do that, since it is able to report it in the web interface), and use
> that to set cake's bandwidth parameter. You could update it periodically
> using "tc qdisc change ...".
>
> You will need to set the overhead calculation correctly, probably using
> "pppoa-vcmux" or similar, depending on precisely what encapsulation your ISP
> uses. If you're not confident about that, specify "conservative" to begin
> with.
I can be of help to measure the overhead empirically, if you are
willing to dedicate a few hours on an otherwise quiescent link to gather some
ICMP data, just let me know.
Best Regards
Sebastian
> Once you have that, you can experiment to see how much you need to reduce the
> raw sync rate to achieve full bottleneck control - hopefully not much, at
> most 1%.
>
> The same approach would also work for inbound if necessary, except that you
> would need to reduce the raw sync rate rather more.
>
> - Jonathan Morton
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