We are able to form a openthread mesh using CLI-ftd examples.At present we have server communicating to Clint in UDP portal .Is there is any UART command which is meant for communicate between two "servers" and "Clinttoserver".
Perhaps you can take a look at the simple_coap_server and the simple_coap_client examples from the SDK. What SDK version are you using? nRF Connect SDK or nRF5 SDK for Thread and Zigbee?
