Overall Netflix bandwidth usage numbers on a network?

Blake Hudson blake at ispn.net
Wed Dec 7 16:57:13 UTC 2011

Yeah, that's an interesting one. We currently utilize netflow for this, 
but you also need to consider that netflix streaming is just port 80 www 
traffic. Because netflix uses CDNs, its difficult to pin down the 
traffic to specific hosts in the CDN and say that this traffic was 
netflix, while this traffic was the latest windows update (remember this 
is often a shared hosting platform). We've done our own testing and have 
come to a good solution which uses a combination of nbar, packet 
marking, and netflow to come to a conclusion. On a ~160Mbps link, 
netflix peaks out between 30-50Mbps around 8-10PM each evening. The rest 
of the traffic is predominantly other forms of HTTP traffic (including 
other video streaming services).

Martin Hepworth wrote the following on 12/3/2011 2:36 AM:
> Also checkout Adrian Cockcroft presentations on their architecture which
> describes how they use aws and CDns etc
> Martin

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