RTMP Bandwidth Problems

I noticed that windows reports TD’s bandwidth shooting up to 70mbps while videoStreamInTOP attempting to connect to an inactive RTMP stream from the cdn. This drops dramatically to ~6mbps once it can actually connect and start streaming. The info chop doesn’t report this bandwidth however and appears to just periodically show network bandwidth of around 6mbps in a fashion that I presume is reflective of keyframes coming in (maybe?), albeit blank ones. Is this a bug or expected behaviour?

I’m also curious as to how the vidstreamin top asks the cdn for its resolution, which i believe players/browsers manage based on their current platform etc. For example, our cdn transcodes to several resolutions but we can’t seem to stipulate this from TD. Setting the resolution par in the common page to half or quarter seems to pull down the same amount of data. Any insights into the internals of this would be great, thanks.