Thread mesh network capacity problem

[Wojtek]

Hi!

I have questions for Nordic developers team. What capacity of network is possible with nrf52840 thread mesh? I've tried to attach large amount of nodes to mesh and it collapsed with about ~20 devices. I mean that devices could not connect to mesh. In case of nrf52840-PDK led indicator starts to blink very strange while attempting to connect. Is there any parameters in library to change that can improve capacity of network?

My set: nRF52840+Thread sdk v0.10

Best regards, Wojciech Rzepecki

[Wojtek]

Hi Piotr! My nodes are programmed with V0.10. My Topology Monitor is PDK with CLI example from V0.11. Battery powered nodes are hardcoded to work as SED but other ones can choose mode on their own. Most of network consist of routers. I know about limit of 32 of these. Im attaching nodes one after another starting from routers delegated to be the skeleton of the network. When all nodes are attached network works for a while until crash. When I power down about 3 nodes network starts to work properly. My previous experiences with Thread was that nodes need to be attached with a liitle time beetween each other to avoid problems. I've attached screen from TTM in first post. The network on it is on edge of stability.