TCP Asynchronous Socket Server,

Need TCP Asynchronous Socket Server, which will be able to handle multiple clients same time, server will keep record of each connected socket client for further communication. On successful client socket connection; server will assign this connection a unique identifier (IMEI of the device); and then add this connection in Dictionary having key of unique identifier. Then further communication with that client will be established through this unique identifier. Once any client disconnect whether forcefully or gracefully, then this dictionary should be updated. In application, client can communication with server, and server can communicate with client. Another requirement is, client should also be enabling to talk with another client. For example, client A want to send message to client B; client A will send message to server, message will have 2 parts (lets say | delimited); 1 part will contain IMEI of the client B, and another part will contain Message (for Client B), server will search for connection of Client B in its Dictionary, Possible scenario will be as below • If connection for client B not found in dictionary, then Server will reply Client A “Client B Not Found” • If connection for client B found in dictionary, then server will check whether client B have active connection, if connection is not active then Server will reply Client A “Client B not have active connection” • If connection found and also is active, then server will send same text received in 2nd part of message(received from client A) to client B, then client B will respond to that message to server, server will forward same message (response of client B ) to client A. Another scenario, client will send message to server on through socket, and server will parse data and save it in SQL Database through store procedure. Language: C#. Library: any well documented socket programming library which can handle transport errors and issues, and should be faster. Source code should be well documented.