With XenDesktop USB Passthrough, when a webcamera (ordinary/HD) is used, a huge load is put on the network as raw image data is transferred between thinclient and the VM.
for example idle traffic on a VDI machine can be viewed in the following screenshot.(Agent registration, edgesight monitoring etc..)
When a web camera is turned on, network utilization spikes up from 100kbps to 90 Mbps.
This is for one VDI machine, just imagine this on 100/1000 VM’s.