diff --git a/ponsim/v2/core/ponsim_device_state.go b/ponsim/v2/core/ponsim_device_state.go
new file mode 100644
index 0000000..a5805a2
--- /dev/null
+++ b/ponsim/v2/core/ponsim_device_state.go
@@ -0,0 +1,22 @@
+package core
+
+type PonSimDeviceState uint8
+
+const (
+	DISCONNECTED_FROM_PON PonSimDeviceState = iota
+	CONNECTED_TO_PON
+	REGISTERED_WITH_OLT
+	CONNECTED_IO_INTERFACE
+)
+
+// Execute state string equivalents
+var PonSimDeviceStateEnum = []string{
+	"DISCONNECTED_FROM_PON",
+	"CONNECTED_TO_PON",
+	"REGISTERED_WITH_OLT",
+	"CONNECTED_IO_INTERFACE",
+}
+
+func (s PonSimDeviceState) String() string {
+	return PonSimDeviceStateEnum[s]
+}