Re: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery f

On 2017-2-3, at 11:21, Lars Eggert <lars(_at_)netapp(_dot_)com> wrote:
> PDF here: https://www.caida.org/~mjl/pubs/measuring-pmtud.pdf
>
> "This paper measures PMTUD behaviour for
> 50,000 popular websites and finds the failure rate in IPv4
> is much less than previous studies. We measure the overall
> failure rate between 5% and 18%, depending on the MTU of
> the constraining link."
>
> 5-18% is pretty bad. I would expect that the widespread deployment of CGNs 
> since this was published in 2010 to not have improved things.
And yeah, this is for v4. I'm not aware of v6 measurements in this space.

Lars

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