[smokeping-users] Interesting shapes

[Jason D. Hammerschmidt]

Is there anyone else who sees this regular saw motion repeated over and 
over again in their WAN latency graphs, usually changing 
frequency/period ever so slightly over time?  It's just fascinating, I 
wonder what causes it?  Built in QOS?  Or maybe something elaborate 
like periodic IOS memory garbage clean up freeing up cpu time for 
better switching?  It only shows up on WAN links, never LAN monitored 
stuff.  Mainly Cisco gear.

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