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Re: [tor-relays] "Fast" flag definition



> On 30 Oct 2017, at 10:21, Igor Mitrofanov <igor.n.mitrofanov@xxxxxxxxx> wrote:
> 
> Hi,
> 
> It looks like 94.7% of all Running relays have the "Fast" flag now. If
> that percentage becomes 100%, the flag will become meaningless.
> What were the reasons behind the current definition of "Fast", and are
> those still valid? If not, should "Fast" become self-adjusting
> ("faster than 2 Mbps or 70% of all Guard relays, whichever is
> greater")?

It is self-adjusting, and we expect at least 87.5% of relays to have it:

   "Fast" -- A router is 'Fast' if it is active, and its bandwidth is either in
   the top 7/8ths for known active routers or at least 100KB/s.

https://gitweb.torproject.org/torspec.git/tree/dir-spec.txt#n2408

But maybe we could increase the threshold.

Feel free to open the ticket at:

https://trac.torproject.org/

--
Tim / teor

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