Index: src/switched-ethernet/model/switched-ethernet-net-device.h |
=================================================================== |
new file mode 100644 |
--- /dev/null |
+++ b/src/switched-ethernet/model/switched-ethernet-net-device.h |
@@ -0,0 +1,682 @@ |
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
+/* |
+ * Copyright (c) 2012 Jeffrey Young |
+ * |
+ * This program is free software; you can redistribute it and/or modify |
+ * it under the terms of the GNU General Public License version 2 as |
+ * published by the Free Software Foundation; |
+ * |
+ * This program is distributed in the hope that it will be useful, |
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of |
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
+ * GNU General Public License for more details. |
+ * |
+ * You should have received a copy of the GNU General Public License |
+ * along with this program; if not, write to the Free Software |
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
+ * |
+ * Author: Jeff Young <jyoung9@gatech.edu |
+ * This code is based on csma-net-device created by |
+ * Emmanuelle Laprise <emmanuelle.laprise@bluekazoo.ca> |
+ * |
+ */ |
+ |
+#ifndef SWITCHED_ETHERNET_NET_DEVICE_H |
+#define SWITCHED_ETHERNET_NET_DEVICE_H |
+ |
+#include <string.h> |
+#include "ns3/node.h" |
+#include "ns3/address.h" |
+#include "ns3/net-device.h" |
+#include "ns3/callback.h" |
+#include "ns3/packet.h" |
+#include "ns3/traced-callback.h" |
+#include "ns3/nstime.h" |
+#include "ns3/data-rate.h" |
+#include "ns3/ptr.h" |
+#include "ns3/random-variable.h" |
+#include "ns3/mac48-address.h" |
+ |
+namespace ns3 { |
+ |
+class Queue; |
+class SwitchedEthernetChannel; |
+class ErrorModel; |
+ |
+/** |
+ * \class SwitchedEthernetNetDevice |
+ * \brief A Device for a SwitchedEthernet Network Link. |
+ * |
+ * The SwitchedEthernet net device class is analogous to layer 1 and 2 of the |
+ * TCP stack. The NetDevice takes a raw packet of bytes and creates a |
+ * protocol specific packet from them. |
+ */ |
+class SwitchedEthernetNetDevice : public NetDevice |
+{ |
+public: |
+ static TypeId GetTypeId (void); |
+ |
+ /** |
+ * Enumeration of the types of packets supported in the class. |
+ */ |
+ enum EncapsulationMode { |
+ ILLEGAL, /**< Encapsulation mode not set */ |
Vedran Miletić
2012/07/16 12:02:19
Please prefix these with ENCAPSULATION_MODE_
|
+ DIX, /**< DIX II / Ethernet II packet */ |
+ LLC, /**< 802.2 LLC/SNAP Packet*/ |
+ }; |
+ |
+ /** |
+ * Construct a SwitchedEthernetNetDevice |
+ * |
+ * This is the default constructor for a SwitchedEthernetNetDevice. |
+ */ |
+ SwitchedEthernetNetDevice (); |
+ |
+ /** |
+ * Destroy a SwitchedEthernetNetDevice |
+ * |
+ * This is the destructor for a SwitchedEthernetNetDevice. |
+ */ |
+ virtual ~SwitchedEthernetNetDevice (); |
+ |
+ /** |
+ * Set the interframe gap used to separate packets. The interframe gap |
+ * defines the minimum space required between packets sent by this device. |
+ * As in Ethernet, it defaults to 96 bit times. |
+ * |
+ * \param t the interframe gap time |
+ */ |
+ void SetInterframeGap (Time t); |
+ |
+ /** |
+ * Attach the device to a channel. |
+ * |
+ * The function Attach is used to add a SwitchedEthernetNetDevice to a SwitchedEthernetChannel. |
Peter Barnes
2012/07/16 20:08:48
Break line (too long)
|
+ * |
+ * \see SetDataRate () |
+ * \see SetInterframeGap () |
+ * \param ch a pointer to the channel to which this object is being attached. |
Peter Barnes
2012/07/16 20:08:48
\param ch Ptr to the...
Also clarify all Ptr argum
|
+ */ |
+ bool Attach (Ptr<SwitchedEthernetChannel> ch); |
Peter Barnes
2012/07/16 20:08:48
Document meaning of \return
|
+ |
+ /** |
+ * Attach a queue to the SwitchedEthernetNetDevice. |
+ * |
+ * The SwitchedEthernetNetDevice "owns" a queue. This queue may be set by higher |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ * level topology objects to implement a particular queueing method such as |
+ * DropTail or RED. |
+ * |
+ * \see Queue |
+ * \see DropTailQueue |
+ * \param queue a Ptr to the queue for being assigned to the device. |
+ */ |
+ void SetQueue (Ptr<Queue> queue); |
+ |
+ /** |
+ * Get a copy of the attached Queue. |
+ * |
+ * \return a pointer to the queue. |
+ */ |
+ Ptr<Queue> GetQueue (void) const; |
+ |
+ /** |
+ * Attach a receive ErrorModel to the SwitchedEthernetNetDevice. |
+ * |
+ * The SwitchedEthernetNetDevice may optionally include an ErrorModel in |
+ * the packet receive chain to simulate data errors in during transmission. |
Peter Barnes
2012/07/16 20:08:48
"data errors during" (delete "in")
|
+ * |
+ * \see ErrorModel |
+ * \param em a pointer to the ErrorModel |
+ */ |
+ void SetReceiveErrorModel (Ptr<ErrorModel> em); |
+ |
+ /** |
+ * Receive a packet from a connected SwitchedEthernetChannel. |
+ * |
+ * The SwitchedEthernetNetDevice receives packets from its connected channel |
+ * and forwards them up the protocol stack. This is the public method |
+ * used by the channel to indicate that the last bit of a packet has |
+ * arrived at the device. |
+ * |
+ * \see SwitchedEthernetChannel |
+ * \param p a reference to the received packet |
+ * \param sender the SwitchedEthernetNetDevice that transmitted the packet in the first place |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ */ |
+ void Receive (Ptr<Packet> p, Ptr<SwitchedEthernetNetDevice> sender); |
+ |
+ /** |
+ * Is the send side of the network device enabled? |
+ * |
+ * \returns True if the send side is enabled, otherwise false. |
+ */ |
+ bool IsSendEnabled (void); |
Peter Barnes
2012/07/16 20:08:48
Should be const?
|
+ |
+ /** |
+ * Enable or disable the send side of the network device. |
+ * |
+ * \param enable Enable the send side if true, otherwise disable. |
+ */ |
+ void SetSendEnable (bool enable); |
+ |
+ /** |
+ * Is the receive side of the network device enabled? |
+ * |
+ * \returns True if the receiver side is enabled, otherwise false. |
+ */ |
+ bool IsReceiveEnabled (void); |
Peter Barnes
2012/07/16 20:08:48
Should be const?
|
+ |
+ /** |
+ * Enable or disable the receive side of the network device. |
+ * |
+ * \param enable Enable the receive side if true, otherwise disable. |
+ */ |
+ void SetReceiveEnable (bool enable); |
+ |
+ /** |
+ * Set the encapsulation mode of this device. |
+ * |
+ * \param mode The encapsulation mode of this device. |
+ * |
+ */ |
+ void SetEncapsulationMode (SwitchedEthernetNetDevice::EncapsulationMode mode); |
+ |
+ /** |
+ * Get the encapsulation mode of this device. |
+ * |
+ * \returns The encapsulation mode of this device. |
+ */ |
+ SwitchedEthernetNetDevice::EncapsulationMode GetEncapsulationMode (void); |
Peter Barnes
2012/07/16 20:08:48
Should be const?
|
+ |
+ // |
+ // The following methods are inherited from NetDevice base class. |
+ // |
+ virtual void SetIfIndex (const uint32_t index); |
+ virtual uint32_t GetIfIndex (void) const; |
+ virtual Ptr<Channel> GetChannel (void) const; |
+ virtual bool SetMtu (const uint16_t mtu); |
+ virtual uint16_t GetMtu (void) const; |
+ virtual void SetAddress (Address address); |
+ virtual Address GetAddress (void) const; |
+ virtual bool IsLinkUp (void) const; |
+ virtual void AddLinkChangeCallback (Callback<void> callback); |
+ virtual bool IsBroadcast (void) const; |
+ virtual Address GetBroadcast (void) const; |
+ virtual bool IsMulticast (void) const; |
+ |
+ /** |
+ * \brief Make and return a MAC multicast address using the provided |
+ * multicast group |
+ * |
+ * RFC 1112 says that an Ipv4 host group address is mapped to an Ethernet |
+ * multicast address by placing the low-order 23-bits of the IP address into |
+ * the low-order 23 bits of the Ethernet multicast address |
+ * 01-00-5E-00-00-00 (hex). |
+ * |
+ * This method performs the multicast address creation function appropriate |
+ * to an EUI-48-based SwitchedEthernet device. This MAC address is encapsulated in an |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ * abstract Address to avoid dependencies on the exact address format. |
+ * |
+ * \param multicastGroup The IP address for the multicast group destination |
+ * of the packet. |
+ * \return The MAC multicast Address used to send packets to the provided |
+ * multicast group. |
+ * |
+ * \see Ipv4Address |
+ * \see Mac48Address |
+ * \see Address |
+ */ |
+ virtual Address GetMulticast (Ipv4Address multicastGroup) const; |
+ |
+ /** |
+ * Is this a point to point link? |
+ * \returns false. |
+ */ |
+ virtual bool IsPointToPoint (void) const; |
+ |
+ /** |
+ * Is this a bridge? |
+ * \returns false. |
+ */ |
+ virtual bool IsBridge (void) const; |
+ |
+ /** |
+ * Start sending a packet down the channel. |
+ * \param packet packet to send |
+ * \param dest layer 2 destination address |
+ * \param protocolNumber protocol number |
+ * \return true if successfull, false otherwise (drop, ...) |
+ */ |
+ virtual bool Send (Ptr<Packet> packet, const Address& dest, |
+ uint16_t protocolNumber); |
+ |
+ /** |
+ * Start sending a packet down the channel, with MAC spoofing |
+ * \param packet packet to send |
+ * \param source layer 2 source address |
+ * \param dest layer 2 destination address |
+ * \param protocolNumber protocol number |
+ * \return true if successfull, false otherwise (drop, ...) |
+ */ |
+ virtual bool SendFrom (Ptr<Packet> packet, const Address& source, const Address& dest, |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ uint16_t protocolNumber); |
+ |
+ /** |
+ * Get the node to which this device is attached. |
+ * |
+ * \returns Ptr to the Node to which the device is attached. |
+ */ |
+ virtual Ptr<Node> GetNode (void) const; |
+ |
+ /** |
+ * Set the node to which this device is being attached. |
+ * |
+ * \param node Ptr to the Node to which the device is being attached. |
+ */ |
+ virtual void SetNode (Ptr<Node> node); |
+ |
+ /** |
+ * Does this device need to use the address resolution protocol? |
+ * |
+ * \returns True if the encapsulation mode is set to a value that requires |
+ * ARP (IP_ARP or LLC). |
+ */ |
+ virtual bool NeedsArp (void) const; |
+ |
+ /** |
+ * Set the callback to be used to notify higher layers when a packet has been |
+ * received. |
+ * |
+ * \param cb The callback. |
+ */ |
+ virtual void SetReceiveCallback (NetDevice::ReceiveCallback cb); |
+ |
+ /** |
+ * \brief Get the MAC multicast address corresponding |
+ * to the IPv6 address provided. |
+ * \param addr IPv6 address |
+ * \return the MAC multicast address |
+ * \warning Calling this method is invalid if IsMulticast returns not true. |
+ */ |
+ virtual Address GetMulticast (Ipv6Address addr) const; |
Peter Barnes
2012/07/16 20:08:48
Move up to follow GetMulticast(Ipv4)?
|
+ |
+ |
+ virtual void SetPromiscReceiveCallback (PromiscReceiveCallback cb); |
+ virtual bool SupportsSendFrom (void) const; |
+ |
+protected: |
+ /** |
+ * Perform any object release functionality required to break reference |
+ * cycles in reference counted objects held by the device. |
+ */ |
+ virtual void DoDispose (void); |
+ |
+ /** |
+ * Adds the necessary headers and trailers to a packet of data in order to |
+ * respect the packet type |
+ * |
+ * \param p Packet to which header should be added |
+ * \param source MAC source address from which packet should be sent |
+ * \param dest MAC destination address to which packet should be sent |
+ * \param protocolNumber In some protocols, identifies the type of |
+ * payload contained in this packet. |
+ */ |
+ void AddHeader (Ptr<Packet> p, Mac48Address source, Mac48Address dest, uint16_t protocolNumber); |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ |
+private: |
+ |
+ /** |
+ * Operator = is declared but not implemented. This disables the assignment |
+ * operator for SwitchedEthernetNetDevice objects. |
+ * \param o object to copy |
+ */ |
+ SwitchedEthernetNetDevice &operator = (const SwitchedEthernetNetDevice &o); |
+ |
+ /** |
+ * Copy constructor is declared but not implemented. This disables the |
+ * copy constructor for SwitchedEthernetNetDevice objects. |
+ * \param o object to copy |
+ */ |
+ SwitchedEthernetNetDevice (const SwitchedEthernetNetDevice &o); |
+ |
+ /** |
+ * Initialization function used during object construction. |
+ * \param sendEnable if device will be allowed to send |
+ * \param receiveEnable if device will be allowed to receive |
+ */ |
+ void Init (bool sendEnable, bool receiveEnable); |
+ |
+ /** |
+ * Start Sending a Packet Down the Wire. |
+ * |
+ * The TransmitStart method is the method that is used internally in |
+ * the SwitchedEthernetNetDevice to begin the process of sending a packet |
+ * out on the channel. A corresponding method is called on the |
+ * channel to let it know that the physical device this class |
+ * represents has actually started sending signals, this causes the |
+ * channel to enter the BUSY state. An event is scheduled for the time at |
+ * which the bits have been completely transmitted. |
+ * |
+ * If the channel is found to be BUSY, this method reschedules itself for |
+ * execution at a later time (within the backoff period). |
+ * |
+ * \see SwitchedEthernetChannel::TransmitStart () |
+ * \see TransmitCompleteEvent () |
+ */ |
+ void TransmitStart (); |
+ |
+ /** |
+ * Stop Sending a Packet Down the Wire and Begin the Interframe Gap. |
+ * |
+ * The TransmitCompleteEvent method is used internally to finish the process |
+ * of sending a packet out on the channel. During execution of this method |
+ * the TransmitEnd method is called on the channel to let it know that the |
+ * physical device this class represents has finished sending simulated |
+ * signals. The channel uses this event to begin its speed of light delay |
+ * timer after which it notifies the Net Device(s) at the other end of the |
+ * link that new bits have arrived (it delivers the Packet). During this |
+ * method, the net device also schedules the TransmitReadyEvent at which |
+ * time the transmitter becomes ready to send the next packet. |
+ * |
+ * \see SwitchedEthernetChannel::TransmitEnd () |
+ * \see TransmitReadyEvent () |
+ */ |
+ void TransmitCompleteEvent (void); |
+ |
+ /** |
+ * Cause the Transmitter to Become Ready to Send Another Packet. |
+ * |
+ * The TransmitReadyEvent method is used internally to re-enable the |
+ * transmit machine of the net device. It is scheduled after a suitable |
+ * interframe gap after the completion of the previous transmission. |
+ * The queue is checked at this time, and if there is a packet waiting on |
+ * the queue, the transmission process is begun. |
+ * |
+ * If a packet is in the queue, it is extracted for the queue as the |
+ * next packet to be transmitted by the net device. |
+ * |
+ * \see TransmitStart () |
+ */ |
+ void TransmitReadyEvent (void); |
+ |
+ /** |
+ * Aborts the transmission of the current packet |
+ * |
+ * If the net device has tried to transmit a packet for more times |
+ * than the maximum allowed number of retries (channel always busy) |
+ * then the packet is dropped. |
+ */ |
+ void TransmitAbort (void); |
+ |
+ /** |
+ * Notify any interested parties that the link has come up. |
+ */ |
+ void NotifyLinkUp (void); |
+ |
+ /** |
+ * Device ID returned by the attached functions. It is used by the |
+ * mp-channel to identify each net device to make sure that only |
+ * active net devices are writing to the channel |
+ */ |
+ uint32_t m_deviceId; |
+ |
+ /** |
+ * Enable net device to send packets. True by default |
+ */ |
+ bool m_sendEnable; |
+ |
+ /** |
+ * Enable net device to receive packets. True by default |
+ */ |
+ bool m_receiveEnable; |
+ |
+ /** |
+ * Enumeration of the states of the transmit machine of the net device. |
+ */ |
+ enum TxMachineState |
+ { |
+ READY, /**< The transmitter is ready to begin transmission of a packet */ |
Vedran Miletić
2012/07/16 12:02:19
Please prefix these with TX_MACHINE_STATE_
|
+ BUSY, /**< The transmitter is busy transmitting a packet */ |
+ GAP, /**< The transmitter is in the interframe gap time */ |
+ BACKOFF /**< The transmitter is waiting for the channel to be free */ |
+ }; |
+ |
+ /** |
+ * The state of the Net Device transmit state machine. |
+ * \see TxMachineState |
+ */ |
+ TxMachineState m_txMachineState; |
+ |
+ /** |
+ * The type of packet that should be created by the AddHeader |
+ * function and that should be processed by the ProcessHeader |
+ * function. |
+ */ |
+ EncapsulationMode m_encapMode; |
+ |
+ /** |
+ * The data rate that the Net Device uses to simulate packet transmission |
+ * timing. |
+ * \see class DataRate |
+ */ |
+ DataRate m_bps; |
+ |
+ /** |
+ * The interframe gap that the Net Device uses insert time between packet |
Peter Barnes
2012/07/16 20:08:48
"Device inserts between"
|
+ * transmission |
+ * \see class Time |
+ */ |
+ Time m_tInterframeGap; |
+ |
+ /** |
+ * Next packet that will be transmitted (if transmitter is not |
+ * currently transmitting) or packet that is currently being |
+ * transmitted. |
+ */ |
+ Ptr<Packet> m_currentPkt; |
+ |
+ /** |
+ * The SwitchedEthernetChannel to which this SwitchedEthernetNetDevice has been |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ * attached. |
+ * \see class SwitchedEthernetChannel |
+ */ |
+ Ptr<SwitchedEthernetChannel> m_channel; |
+ |
+ /** |
+ * The Queue which this SwitchedEthernetNetDevice uses as a packet source. |
+ * Management of this Queue has been delegated to the SwitchedEthernetNetDevice |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ * and it has the responsibility for deletion. |
+ * \see class Queue |
+ * \see class DropTailQueue |
+ */ |
+ Ptr<Queue> m_queue; |
+ |
+ /** |
+ * Error model for receive packet events. When active this model will be |
+ * used to model transmission errors by marking some of the packets |
+ * received as corrupt. |
+ */ |
+ Ptr<ErrorModel> m_receiveErrorModel; |
+ |
+ /** |
+ * The trace source fired when packets come into the "top" of the device |
+ * at the L3/L2 transition, before being queued for transmission. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_macTxTrace; |
+ |
+ /** |
+ * The trace source fired when packets coming into the "top" of the device |
+ * at the L3/L2 transition are dropped before being queued for transmission. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_macTxDropTrace; |
+ |
+ /** |
+ * The trace source fired for packets successfully received by the device |
+ * immediately before being forwarded up to higher layers (at the L2/L3 |
+ * transition). This is a promiscuous trace. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_macPromiscRxTrace; |
+ |
+ /** |
+ * The trace source fired for packets successfully received by the device |
+ * immediately before being forwarded up to higher layers (at the L2/L3 |
+ * transition). This is a non-promiscuous trace. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_macRxTrace; |
+ |
+ /** |
+ * The trace source fired for packets successfully received by the device |
+ * but dropped before being forwarded up to higher layers (at the L2/L3 |
+ * transition). |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_macRxDropTrace; |
+ |
+ /** |
+ * The trace source fired when a packet begins the transmission process on |
+ * the medium. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_phyTxBeginTrace; |
+ |
+ /** |
+ * The trace source fired when a packet ends the transmission process on |
+ * the medium. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_phyTxEndTrace; |
+ |
+ /** |
+ * The trace source fired when the phy layer drops a packet as it tries |
+ * to transmit it. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_phyTxDropTrace; |
+ |
+ /** |
+ * The trace source fired when a packet begins the reception process from |
+ * the medium. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_phyRxBeginTrace; |
+ |
+ /** |
+ * The trace source fired when a packet ends the reception process from |
+ * the medium. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_phyRxEndTrace; |
+ |
+ /** |
+ * The trace source fired when the phy layer drops a packet it has received. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_phyRxDropTrace; |
+ |
+ /** |
+ * A trace source that emulates a non-promiscuous protocol sniffer connected |
+ * to the device. Unlike your average everyday sniffer, this trace source |
+ * will not fire on PACKET_OTHERHOST events. |
+ * |
+ * On the transmit size, this trace hook will fire after a packet is dequeued |
Peter Barnes
2012/07/16 20:08:48
"transmit side,"
|
+ * from the device queue for transmission. In Linux, for example, this would |
+ * correspond to the point just before a device hard_start_xmit where |
+ * dev_queue_xmit_nit is called to dispatch the packet to the PF_PACKET |
+ * ETH_P_ALL handlers. |
+ * |
+ * On the receive side, this trace hook will fire when a packet is received, |
+ * just before the receive callback is executed. In Linux, for example, |
+ * this would correspond to the point at which the packet is dispatched to |
+ * packet sniffers in netif_receive_skb. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_snifferTrace; |
+ |
+ /** |
+ * A trace source that emulates a promiscuous mode protocol sniffer connected |
+ * to the device. This trace source fire on packets destined for any host |
Peter Barnes
2012/07/16 20:08:48
"source fires"
|
+ * just like your average everyday packet sniffer. |
+ * |
+ * On the transmit size, this trace hook will fire after a packet is dequeued |
+ * from the device queue for transmission. In Linux, for example, this would |
+ * correspond to the point just before a device hard_start_xmit where |
+ * dev_queue_xmit_nit is called to dispatch the packet to the PF_PACKET |
+ * ETH_P_ALL handlers. |
+ * |
+ * On the receive side, this trace hook will fire when a packet is received, |
+ * just before the receive callback is executed. In Linux, for example, |
+ * this would correspond to the point at which the packet is dispatched to |
+ * packet sniffers in netif_receive_skb. |
+ * |
+ * \see class CallBackTraceSource |
+ */ |
+ TracedCallback<Ptr<const Packet> > m_promiscSnifferTrace; |
+ |
+ /** |
+ * The Node to which this device is attached. |
+ */ |
+ Ptr<Node> m_node; |
+ |
+ /** |
+ * The MAC address which has been assigned to this device. |
+ */ |
+ Mac48Address m_address; |
+ |
+ /** |
+ * The callback used to notify higher layers that a packet has been received. |
+ */ |
+ NetDevice::ReceiveCallback m_rxCallback; |
+ |
+ /** |
+ * The callback used to notify higher layers that a packet has been received in promiscuous mode. |
Peter Barnes
2012/07/16 20:08:48
Break line
|
+ */ |
+ NetDevice::PromiscReceiveCallback m_promiscRxCallback; |
+ |
+ /** |
+ * The interface index (really net evice index) that has been assigned to |
Peter Barnes
2012/07/16 20:08:48
"net device index"
|
+ * this network device. |
+ */ |
+ uint32_t m_ifIndex; |
+ |
+ /** |
+ * Flag indicating whether or not the link is up. In this case, |
+ * whether or not the device is connected to a channel. |
+ */ |
+ bool m_linkUp; |
+ |
+ /** |
+ * List of callbacks to fire if the link changes state (up or down). |
+ */ |
+ TracedCallback<> m_linkChangeCallbacks; |
+ |
+ static const uint16_t DEFAULT_MTU = 1500; |
+ |
+ /** |
+ * The Maximum Transmission Unit. This corresponds to the maximum |
+ * number of bytes that can be transmitted as seen from higher layers. |
+ * This corresponds to the 1500 byte MTU size often seen on IP over |
+ * Ethernet. |
+ */ |
+ uint32_t m_mtu; |
+ |
+}; |
+ |
+}; // namespace ns3 |
+ |
+#endif /* SWITCHED_ETHERNET_NET_DEVICE_H */ |
+ |