diff --git a/src/runtime2/port.rs b/src/runtime2/port.rs
index 579c7ee61b07d1f5566dcba57a6942f8c807e7a6..9e51424b942b6f488136f6151409a8c75cb426fb 100644
--- a/src/runtime2/port.rs
+++ b/src/runtime2/port.rs
@@ -21,6 +21,17 @@ impl PortIdLocal {
     }
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct ChannelId {
+    pub index: u32,
+}
+
+impl ChannelId {
+    pub fn new(id: u32) -> Self {
+        return Self{ index: id };
+    }
+}
+
 #[derive(Debug, Clone, Copy, Eq, PartialEq)]
 pub enum PortKind {
     Putter,
@@ -41,6 +52,7 @@ pub enum PortState {
 pub struct Port {
     pub self_id: PortIdLocal,
     pub peer_id: PortIdLocal,
+    pub channel_id: ChannelId,
     pub kind: PortKind,
     pub state: PortState,
     pub peer_connector: ConnectorId, // might be temporarily inconsistent while peer port is sent around in non-sync phase