@pervognsen Yeah, the thing which precipitated this thought was the connection id in quic which is endpoint specific, not directional per-se. And you have to send your connection id as part of the handshake. Which is a bit weird imo. But there's also symmetric keys which are attached to the direction, but used asymmetrically. I do agree about tx / rx though, that's the most reasonable thing I could come up with as well.