RE: Traffic Shaping on ISPs

[Jake Vargas <jvargas () crypticstudios com>]

> While I cannot confirm officially, there is a lot of rumors, that several
> larger UK ISP's are throttling traffic at that time period.
> I am not sure who to contact, but the individual ISP's to solve this, from
> your point, maybe another NANOG'er knows.

Hi Lasse, 

Thanks for the reply. We wrote an app to reveal troubles.

Just to satisfy any curiosity and get some facts out, I will provide a real world example (1 of many) from a direct 
test of one of our BT sourced customers (this is from a 08-29 test at ~22:04 hours GMT):

Date                    IP                      RTT     Port    ActualRecv      NicSent NicRecv
090829 22:04:24 86.128.0.0/10   103.5   80      199     13      214
090829 22:04:24 86.128.0.0/10           103.5   80      199     13      214
090829 22:04:24 86.128.0.0/10           103.5   443     200     12      215
090829 22:04:24 86.128.0.0/10           103.5   443     199     12      214
090829 22:04:24 86.128.0.0/10           103.5   7255    2       2       5
090829 22:04:24 86.128.0.0/10           103.5   7255    3       1       4
090829 22:04:24 86.128.0.0/10           103.5   7003    3       2       5
090829 22:04:24 86.128.0.0/10           103.5   7003    4       1       5
090829 22:04:24 86.128.0.0/10           103.5   7202    27      3       32
090829 22:04:24 86.128.0.0/10           103.5   7202    24      2       29
090829 22:04:24 86.128.0.0/10           103.5   7499    27      3       32
090829 22:04:24 86.128.0.0/10           103.5   7499    25      2       31
090829 22:04:24 86.128.0.0/10           103.5   80      195     13      206
Idle NIC bandwidth  Send:     0 KB/sec   Recv:     0 KB/sec

To remove any doubt we also measured idle bandwidth utilization on the NIC when the test wasn't run to remove any other 
culprit such as torrent download, A/V streaming and etc in the background. In this case, 0/0 on idle use. All results 
are in KBytes

I withheld the actual IP address of this test and replaced it from the source prefix. We have quite a few iterations of 
similar results from other source addresses from this prefix alone. All appear to exhibit the same issue. 

I've already written British Telecom and they never replied.