<div dir="ltr"><div class="gmail_default" style="font-family:"trebuchet ms",sans-serif"><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Dear all,</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">I am in trouble with launching a periodical Ping measurement.</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><div><div><img src="cid:ii_jjsl1k2e0" alt="image.png" width="562" height="522"><br></div><br></div>my script is like this, but my measurement always fails. I tried several times with different modification on "interval" and "spread".</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><div><img src="cid:ii_jjs31h021" alt="image.png" width="388" height="528" class="gmail-CToWUd gmail-a6T" tabindex="0" style="cursor: pointer; outline: 0px;"><br></div>one failed example can be reviewed here: <a href="https://atlas.ripe.net/measurements/15282285/" target="_blank" style="color:rgb(17,85,204)">https://atlas.ripe.net/measurements/15282285/</a></div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">It works well when I launch a one-off measurement, but every time I try to launch a periodic measurement with the setting above, it fails all the time.</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">it probably because the "is_oneoff", "interval", "spread" is set wrong, but I can't find a good example for it.</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">The idea of this test measurement is to start a Ping test every 1 minute, from UTC-now to 5 minutes later. Thus, I'd like to have 5-set result in this measurement.</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Could you help me check where I set wrong?</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><br></div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Many thanks,</div><div class="gmail_default" style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Yihao</div></div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="margin:10px"><p style="margin-top:0px;margin-bottom:0px;line-height:25px"><br></p></div></div></div></div></div></div></div></div></div></div></div>