Between 13:16 and 13:58 UTC today, one of my IPv6-only pool servers got an unexpected traffic surge, with the usual 25-ish packets per second peaking at over 600 pps.
There was no apparent effect on its pool score: pool.ntp.org: Statistics for 2001:44b8:2100:3f00::7b:102, nor on any of the usual metrics I collect: Grafana snapshot. The server is set to 1 Gbit in the @, au, and oceania zones.
None of my other pool hosts experienced similar traffic, despite being publicly documented and having trivially-guessable IP addresses.
Did anyone else experience any similar anomalies?