The policer at the network edge can be much more aggressive than a "policer" on an embedded customer network device, and this prevents that "15Mbps for a 900MHz customer" bandwidth from transitioning across your backhauls / backbone... per customer.
Procera and other similar solutions can help, yes. On Tue, Jul 12, 2016 at 8:02 PM, Ken Hohhof <[email protected]> wrote: > How does it eliminate the problem, unless you use something like a Procera > to selectively apply policing to the CDN stream, leaving the customer some > bandwidth for other traffic? > > From: Josh Reynolds > Sent: Tuesday, July 12, 2016 7:22 PM > To: [email protected] > Subject: Re: [AFMUG] CDN overload > > > Shaping/policing at the head end eliminates this problem, and clears up your > backbone. > > On Jul 12, 2016 7:06 PM, "Ken Hohhof" <[email protected]> wrote: >> >> When this happens it basically wipes out that customer’s Internet except >> for the CDN download, no matter where you do the rate limiting. Customer of >> course assumes their ISP just sucks. With a lot of education, you can >> convince most of them it is actually an aggressive application hogging their >> entire pipe and pushing all the other applications aside. So I have >> customers that whenever their VPN to work stops working, they yell upstairs >> at their kid didn’t I tell you to do your Xbox downloads after I go to bed? >> >> One view is this isn’t a problem, customer uses bad application, feels >> pain, learns not to do that. But everyone tells them it is always the ISP’s >> fault. And people with fat pipes like 50 or 100 Mbps cable Internet >> probably don’t experience this problem, which reinforces the idea that it’s >> the ISP’s fault. >> >> >> From: Darin Steffl >> Sent: Tuesday, July 12, 2016 5:42 PM >> To: [email protected] >> Subject: Re: [AFMUG] CDN overload >> >> >> Why aren't you rate limiting at the core closer to your upstream? Keep the >> traffic off your last mile and wireless backhaul network if you can help it. >> >> Works much better to throttle at the core instead of CPE. >> >> Sent from my smartphone. Please excuse any typos. >> >> On Jul 12, 2016 5:13 PM, "George Skorup" <[email protected]> wrote: >>> >>> I have had it with these CDNs sending more traffic than the last mile can >>> handle. Got a customer at 1.5Mbps on 900 FSK and they're sending to her at >>> 15Mbps. Of course the AP reports RF downlink overloaded.
