Update README and add contrib dir

contrib/tsn/model/tsn-aggregated-net-device.h

@@ -0,0 +1,70 @@
+#ifndef TSN_AGGREGATED_NET_DEVICE_H
+#define TSN_AGGREGATED_NET_DEVICE_H
+
+#include "ns3/tsn-net-device.h"
+
+namespace ns3
+{
+
+/**
+ * \ingroup tsn
+ * \class TsnAggregatedNetDevice
+ * \brief A Device for aggregated Ethernet full duplex Link.
+ *
+ * This TsnAggregatedNetDevice class specializes the TsnAggregatedNetDevice
+ * class. This class don't follow any standard. It was designed for experiment
+ * 802.1CB features on end-station.
+ */
+
+class TsnAggregatedNetDevice : public TsnNetDevice
+{
+  public:
+    /**
+     * \brief Get the TypeId
+     *
+     * \return The TypeId for this class
+     */
+    static TypeId GetTypeId();
+
+    /**
+     * Construct a TsnAggregatedNetDevice
+     *
+     * This is the constructor for the TsnAggregatedNetDevice.  It takes as a
+     * parameter a pointer to the Node to which this device is connected,
+     * as well as an optional DataRate object.
+     */
+    TsnAggregatedNetDevice();
+
+    /**
+     * Destroy a TsnAggregatedNetDevice
+     *
+     * This is the destructor for the TsnAggregatedNetDevice.
+     */
+    ~TsnAggregatedNetDevice();
+
+    // Delete copy constructor and assignment operator to avoid misuse
+    TsnAggregatedNetDevice& operator=(const TsnAggregatedNetDevice&) = delete;
+    TsnAggregatedNetDevice(const TsnAggregatedNetDevice&) = delete;
+
+    void AddNetDevice(Ptr<TsnNetDevice>);
+
+    bool SendFrom(Ptr<Packet> packet,
+                  const Address& source,
+                  const Address& dest,
+                  uint16_t ethertype);
+
+  protected:
+    /**
+     * \brief Dispose of the object
+     */
+    void DoDispose();
+
+    bool MacRxPromiscCallback(Ptr<NetDevice> dev, Ptr<const Packet> packet, uint16_t protocol, const Address& sender, const Address& receiver, PacketType pType);
+
+    std::vector<Ptr<TsnNetDevice>> m_netDevices;
+
+};
+
+}
+
+#endif /* TSN_AGGREGATED_NET_DEVICE_H */