Might suggest also what kind of last mile connectivity they have (WISP vs other) to see if something correlates there…. I don’t see or have heard of this on cable, DSL, or FTTH …
Paul > On Sep 19, 2016, at 10:43 PM, Mike Hammett <af...@ics-il.net> wrote: > > Have you seen a CDN overloading a customer? Help me gather information on the > issue. > > What CDN? > What have you identified the traffic to be? > What is the access network? > Where is the rate limiting done? > How is the rate limiting done (policing vs. queueing, SFQ, PFIFO, etc,, etc.)? > What is doing the rate limiting? > What is the rate-limit set to? > Upstream of the rate-limiter, what are you seeing for inbound traffic? > One connection or many? > How much traffic? > How does other traffic behave when exceeding the rate limit? > Where is NAT performed? > What is doing NAT? > Shared NAT or isolated to that customer? > Have you done a packet capture before and after the rate limiter? The NAT > device? > Would you be willing to send a filtered packet capture (only the frames that > relate to this CDN) to the CDN if they want it? > > > > There have been reports of CDNs sending more traffic than the customer can > handle and ignores TCP convention to slow down. Trying to investigate this > thoroughly so we can get the CDN to fix their system. Multiple CDNs have been > shown to do this. > > > > ----- > Mike Hammett > Intelligent Computing Solutions <http://www.ics-il.com/> > <https://www.facebook.com/ICSIL> > <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> > <https://www.linkedin.com/company/intelligent-computing-solutions> > <https://twitter.com/ICSIL> > Midwest Internet Exchange <http://www.midwest-ix.com/> > <https://www.facebook.com/mdwestix> > <https://www.linkedin.com/company/midwest-internet-exchange> > <https://twitter.com/mdwestix> > The Brothers WISP <http://www.thebrotherswisp.com/> > <https://www.facebook.com/thebrotherswisp> > <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg>
