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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 image description

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    Hi, Application sends a packet of data from sensors every 1 minute by COAP. In case of lack of connection messages are buffered and sent while connection renew. When problem occurs packets from network are no longer forwarded to server and border router cannot join network (strange led blinking). Big amount of traffic can occur while many nodes empty their message buffers. This happens very often propably because network unstability. I can see in Topology Monitor that network rebuilds all the time. I will post RTT log as soon I set a new test.

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    Hi, Application sends a packet of data from sensors every 1 minute by COAP. In case of lack of connection messages are buffered and sent while connection renew. When problem occurs packets from network are no longer forwarded to server and border router cannot join network (strange led blinking). Big amount of traffic can occur while many nodes empty their message buffers. This happens very often propably because network unstability. I can see in Topology Monitor that network rebuilds all the time. I will post RTT log as soon I set a new test.

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