Edited sentence: An increasing number of providers object to the use of P2P for realtime vod and streaming services, opting to charge the broadcasters a fee for the extra load on their network, and are pushing for CDN-like solutions instead, so they at least can control the origin and distribution of this traffic.Another reason for the traffic increase is that P2P clients keep receiving and broadcasting data, even if the viewer stopped watching.Dutch Internet providers have calculated that realtime P2P streams use up to 40% more load on their network compared to RTSP streams at the same bitrate for the same audience.If the number of peers increases, the overhead will lower, until a physical network cap or filter is reached.More and more Internet Access providers are also filtering and limiting inbound and on-net P2P traffic to prevent overflowing of their network, which also decreases the QoS of P2P services.The amount of P2P overhead varies: if all peers are within the same network, the overhead is lower.The efficiency claims of P2P for video have been questioned.This has been confirmed by multiple P2P video technology developers, explaining that the reason for the increase of load on the ISP network is P2P overhead communication between peers, plus sending of so called 'parity' hashes to prevent buffer underruns: to guarantee a good QoS with P2P streaming, the total of upstreams from the source peers exceeds the downstream of the peer viewer by 10 to 25 percent.This is necessary since end user upstream connections (DSL, Cable, WiFi, household networks) are less reliable than a professional server upstream facility