Kimsufi (OVH) extreme traffic shaping to encrypted transfer protocols
Hi, I’m currently setting up a Kimsufi (OVH) dedicated server in Gravelines, FR and am noticing some aggressive and strangely implemented bandwidth management while transferring data.
Single HTTP transfer / speed tests show a good synchronous 100mbit connection.
However all encrypted, parallel connections such as btsync, scftp, https, etc all seem to be shaped to 10mbit or occasionally 25mbit.
The uplink is also heavily shaped in increments, seemingly based on the number of simultaneous connections. I have seen shaping down to 1/2mbit depending on protocol.
I have been running dash tests and the graphic below shows how the first connection often transfers acceptably, but as further connections are made, the aggregate of bandwidth received from all connections is throttled down to 10mbit.
Is anyone else experiencing similar shaping?
I am trying to ascertain if this is being applied to all low end servers at OVH Gravelines, specific to the switch or port etc.