As far I know BLE mesh uses the 3 advertisement channels for communication without any synchronization mechanisms. When the mesh protocol emits a package it will send the package on all 3 channels and on the listening site the radio continuously switches between these 3 channels. However, if I have a L2Cap running it uses the other data channels with a timed channel hopping mechanism and thus making radio not listening to the 3 advertisement channels in these time slots. If I have one L2Cap running this is still fine, but if I open more and more L2Cap channels at some point it becomes a problem. Therefore, I would like to know how many L2Cap channels I can safely open before I destroy my mesh communication.