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 "Clint to server".
Not sure exactly what you mean by client and server, but if you refer to the UDP roles, the OpenThread UDP API only supports opening/binding sockets for receiving messages, and sending messages (with or without sockets). The client typically sends messages to the server that receives it on a socket. If you want to send messages the other way, you should open/bind a socket on the "client" node.
