A subscriber is an ADSL user, when he user P2P software to download or upload even the P2P traffic it low,it will cause all the traffic is too low, at the same time , we can monitor the download traffic from gateway, in fact ,the whole traffic is too low. but for a FTTX+LAN user , there is no such problem. why ?
it is caused by asymmetric for up and down traffic, the bandwidth of upstream is too low, and for P2P software, it upload and download at the same time, as the result ,even the bandwidth of downstream is enough, but for upstream, it is congestion, it impacts the normal communication packet and make the traffic of downstream is too low.
but for FTTX+LAN, the bandwidth of upstream and downstream is the same, there is no congestion in upstream, so there is no such problem.