If you are in a situation where you have to anyway, you can use multiple TCP sockets and round robin them (with Nagle off) such that you are always sending just

If you are in a situation where you have to anyway, you can use multiple TCP sockets and round robin them (with Nagle off) such that you are always sending just one packet over each. You'll get overhead and some unneeded acks, but no front of line blocking of the second layer of TCP mechanics going on.