> 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.
