[network-health] Guard fuzz detected

trooned trooned at protonmail.com
Thu Mar 4 12:48:00 UTC 2021

Hi all,

after restarting my bridge today, I got this warning message:

08:32:43 [WARN] Guard fuzz ($153DC150D6000C06E8FAB14B79BDD41B72ED2B21) is failing an extremely large amount of circuits. This could indicate a route manipulation attack, extreme network overload, or a bug.
Success counts are 43/255. Use counts are 71/71. 249 circuits completed, 0 were unusable, 207 collapsed, and 2 timed out. For reference, your timeout cutoff is 60 seconds.

Given the fact that this is the first time for me receiving a warning message like this, I don't really know what the correct procedure is or if this is useful at all for the network health team.
Just thought, I'd let you know that something might be odd with this guard.
I would be very happy if someone could clearify, whether I should keep an eye on those warnings or I can simply ignore them.

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