Thanks Toke, In order to do further testing with your suggestions, first I got rid of the .flentrc file (in part because it seemed not to be properly read by flent) and inserted the values directly in the command line using the --marking-name parameter described in cf4f3da: `flent rrul_var -H 10.111.38.60 --test-parameter bidir_streams=2 --marking-name 11=0x2C --marking-name 13=0x34 --test-parameter markings=11,13` However, the parameter is not being recognized: `flent: error: unrecognized arguments: --marking-name 11=0x2C --marking-name 13=0x34` is my syntax correct? -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/tohojo/flent/issues/215#issuecomment-740079666