Obviously...
BT run a rate limiter for your line at the BRAS. It limits traffic to a set level (typically whole Mb/s) that is below your line sync speed and can change over time depending on your line. We track this BRAS rate and set the CQM system to show this on the graph. It can only gets recorded per hour so shows the highest it was - with a dotted line for the lowest in the hour. You can ask us to limit your line below the BRAS rate - what is shown is the rate we have on the line for you service..
We normally rate limit the line at the same level as the BRAS, i.e. we are not trying to be the bottleneck. We can limit at a lower level if you ask us to. If there is a burst of traffic on your line that would exceed the BRAS rate and mean BT drop packets at the BRAS, then we drop the packet first. By us detecting the burst exceeding the BRAS rate we can (a) show this on the graph as a red dot at the bottom and (b) we can allow small packets such as those used for VoIP to go though when large packets would be dropped (we set a different latency limit for small and large packets). This may still be dropped by the BRAS but typically this has the overall effect of VoIP working well on a full line.
But that is customer choice , is it not, they AAISP are offering this as an extra to customers ? so where you have a customers who isnt interested in such features they will get full throughput in line with BT's IP profile yes/no?
As a plusnet customer it is a very different situation , they implement their secondary IP profile on all accounts ,due to the way their traffic shaping is designed to work ? there is no option available to their customer's to disable this , why not? when a small isp can offer this as a value added extra
but even if this secondary ip profile is set to a value higher than the customers BTW IP profile it still restricts their max throughput level , and the plusnet shaping did not benefit me in any way what so ever and the proven facts are it was responsible for restricting the max achievable throughput by around 2mbps 24/7 for 2 yrs, a lot of data usage saved by plusnet , That is the real reason behind their sales pitch bs
But it of no great surprise now, although back during 2013 things where slightly different, i have said before had i had a crystal ball and known that i would of enjoyed being able to sync at the full rates that VDSL2 offered i would not have chosen plusnet, I would of gone with one of the smaller ISP's every time, SKY would be a possibility but sadly they have to be MPF ukonline FTTC wow now that would rock
Edited by tommy45 (Sun 16-Aug-15 20:59:00)