diff --git a/prototypes/quic_demo/src/bin/quic_demo_client.rs b/prototypes/quic_demo/src/bin/quic_demo_client.rs
index a6bc14a..0237d60 100644
--- a/prototypes/quic_demo/src/bin/quic_demo_client.rs
+++ b/prototypes/quic_demo/src/bin/quic_demo_client.rs
@@ -2,6 +2,7 @@ use structopt::StructOpt;
 use tokio::net::TcpListener;
 
 use quic_demo::prelude::*;
+use protocol::Command;
 
 #[derive (Debug, StructOpt)]
 struct Opt {
diff --git a/prototypes/quic_demo/src/bin/quic_demo_end_server.rs b/prototypes/quic_demo/src/bin/quic_demo_end_server.rs
index 5f9bc9f..ca74902 100644
--- a/prototypes/quic_demo/src/bin/quic_demo_end_server.rs
+++ b/prototypes/quic_demo/src/bin/quic_demo_end_server.rs
@@ -2,6 +2,7 @@ use structopt::StructOpt;
 use tokio::net::TcpStream;
 
 use quic_demo::prelude::*;
+use protocol::Command;
 
 #[derive (Debug, StructOpt)]
 struct Opt {
diff --git a/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs b/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs
index 6ab9876..e5fae3b 100644
--- a/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs
+++ b/prototypes/quic_demo/src/bin/quic_demo_relay_server.rs
@@ -1,6 +1,7 @@
 use structopt::StructOpt;
 
 use quic_demo::prelude::*;
+use protocol::Command;
 
 #[derive (Debug, StructOpt)]
 struct Opt {
diff --git a/prototypes/quic_demo/src/lib.rs b/prototypes/quic_demo/src/lib.rs
index d102ef4..96c3681 100644
--- a/prototypes/quic_demo/src/lib.rs
+++ b/prototypes/quic_demo/src/lib.rs
@@ -1,2 +1,3 @@
 pub mod prelude;
+pub mod protocol;
 pub mod quinn_utils;
diff --git a/prototypes/quic_demo/src/prelude.rs b/prototypes/quic_demo/src/prelude.rs
index f8b3dda..0efa892 100644
--- a/prototypes/quic_demo/src/prelude.rs
+++ b/prototypes/quic_demo/src/prelude.rs
@@ -31,16 +31,5 @@ pub use tracing::{
 	warn,
 };
 
+pub use crate::protocol;
 pub use crate::quinn_utils::*;
-
-#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct Command (pub u8);
-
-impl Command {
-	pub const CONNECT_P2_TO_P3: Command = Command (2);
-	pub const CONNECT_P4_TO_P3: Command = Command (4);
-	pub const CONNECT_P2_TO_P4: Command = Command (10);
-	pub const CONNECT_P2_TO_P4_STEP_2: Command = Command (11);
-	pub const CONNECT_P2_TO_P5: Command = Command (12);
-	pub const OKAY: Command = Command (20);
-}
diff --git a/prototypes/quic_demo/src/protocol.rs b/prototypes/quic_demo/src/protocol.rs
new file mode 100644
index 0000000..779510f
--- /dev/null
+++ b/prototypes/quic_demo/src/protocol.rs
@@ -0,0 +1,13 @@
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct Command (pub u8);
+
+impl Command {
+	pub const CONNECT_P2_TO_P3: Command = Command (2);
+	pub const CONNECT_P4_TO_P3: Command = Command (4);
+	pub const CONNECT_P2_TO_P4: Command = Command (10);
+	pub const CONNECT_P2_TO_P4_STEP_2: Command = Command (11);
+	pub const CONNECT_P2_TO_P5: Command = Command (12);
+	pub const OKAY: Command = Command (20);
+}
+
+// pub fn p2_connect_to_p3 (