how to verify Pipelined TCP and DNSCOOKIE

Hi,there. Please someone help me. I am currently verifying the function of BIND 9.11, but I am in two troubles. 1. I don't know how to confirm [Pipelined TCP queries(RFC7766)]. Specifically, please tell me if there is a method to check with the command such as dig for the server on which BIND 9.1

how to verify Pipelined TCP and DNSCOOKIE

Hi,there. Please someone help me. I am currently verifying the function of BIND 9.11, but I am in two troubles. 1. I don't know how to confirm [Pipelined TCP queries(RFC7766)]. Specifically, please tell me if there is a method to check with the command such as dig for the server on which BIND 9.1