So a line that can sync at full 80000/20000 Kbps can only get a throughput of around 74-76Mbps, it should be configured so that the line can sync at a higher rate... maybe 88000/22000 so it can test at 80/20 instead of 74/18
Ah, I see what you mean. The problem is you open a can of worms there. VDSL2 data rates are defined by a standard, so we can set an exact figure and know what it means, and that is all Openreach are selling to ISPs/wholesalers. It is protocol and application agnostic and does not vary with network configurations like MTU or IPv6. "Throughput" or "download" however comes in all sorts of flavours, what are you going to use because for each one you would have a different number. Presumably you would stick to something coming out of the modem, but that still leaves PPP data rate, IP data rate, IP payload, TCP payload, UDP payload, application payload... why should one be picked over another, it is somewhat arbitrary. Probably the most sensible is to plump for IP payload, as this leaves things open and agnostic to the variable end-user protocol and application (but also their variable overheads), and is how ISPs currently arrive at 76 Mb/s. We still have network variables that can change this at any time, so I don't think it's a good idea personally. Just stick with the old plan IMO
Edited by deleted (Sat 20-Jun-15 16:33:15)