<div dir="ltr"><div>From my perspective;</div><div><br></div><div>1, You do have a commercial relationship with your upstream not the CDN</div><div>2, its in the interest of the upstream to save on costs with the use of cache's on net and other IX's</div><div>3, the 'best' path for your network and what the CDN views as best don't always align.</div><div><br></div><div>I know in the past iv had issues with CDN's and the path traffic takes, Gavins right open a case with the CDN and see what they say my thoughts will be a reply along the lines of "everything working as expected"</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jul 2, 2019 at 4:53 PM thomas bishop <<a href="mailto:darryl.huges87@gmail.com">darryl.huges87@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi List,<div><br>This is a bit of a strange one.</div><div><br>We have recently signed up with a new IP Transit provider and noticed the usage was a lot higher than our old provider.</div><div><br>After doing some digging and sflow captures we managed to find out the provider themselves was sending us tonnes of traffic from their ASN and their IP (They are not a content provider).</div><div><br></div><div>We raised this with the provider and they said its because they cache akami and a few other content providers so that traffic will come through our Transit link instead of our peering.</div><div><br>Since the traffic is coming straight from their AS there is little we can do to stop it coming in apart from getting our own caching server but i don't feel like this should be required.</div><div><br>Curious of your thoughts either on list or privately. Personally i don't see why they would cache with their own AS number. We are essentially paying a premium for traffic we can get for nothing with peering.</div><div><br>Thanks</div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature">Regards,<br><br>Bruce</div>