[tor-bugs] #31701 [Circumvention/Obfs4]: Reachability tests for new obfs4 bridges

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#31701: Reachability tests for new obfs4 bridges
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 Reporter:  cohosh                     |          Owner:  cohosh
     Type:  defect                     |         Status:  assigned
 Priority:  Medium                     |      Milestone:
Component:  Circumvention/Obfs4        |        Version:
 Severity:  Normal                     |     Resolution:
 Keywords:  reachability, measurement  |  Actual Points:
Parent ID:                             |         Points:
 Reviewer:                             |        Sponsor:
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Comment (by cohosh):

 Just analyzed some more data from the probe point in China.

 Unfortunately, I hadn't started a cronjob from a site in North America.
 However, if you compare the most recent results with the ones before them,
 you'll notice that all bridges that are consistently blocked were reported
 as being down from a NA point as well. It's reasonable to assume that all
 bridges that were intermittently unavailable in China were reachable from
 North America at some point in that time.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31701#comment:5>
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