Thank You @ScruffR
Although BLE needs are minimal, since the app would be interested only in advertising messages ( filtering out all the devices I’m not interested in), the potential crowd is high, since we expect a lot of devices, and we need to get and report messages almost realtime. Need to report potentially 30 advertisers spitting out one message/sec, but many nodes obviously can sense (and must report) the same message, so things gets even worse. We are talking of about 50 bytes per message.
So, in the end, if any node hops through N nodes to arrive at the gateway, and the same nodes need to send even their messages to the same gateway, isn’t this becoming too big to manage for a mesh ?