file upload / download example

Hello,
so I search for a way to up/download a filestream with tcp. How I can do this? There are no examples yet, but the examples from orginal netty don't help. Because their example uses a filechannel, that isn't exist in dotnetty. Is http the simplest way? Or exist an other way? I can of curse split the file for myself, but the files are large and I run in a OutOfMemoryException, the code is very slow and I think it have to exist an better way.

I hope someone can give me an example how I can send and recieve / handle the file transfer on both sides.

Best regards,
Christopher Proß