This device assumes 48-bit mac addressing; there is also the possibility to add an ErrorModel if you want to force losses on the device. More...

#include "simple-net-device.h"

Inheritance diagram for ns3::SimpleNetDevice:

Collaboration diagram for ns3::SimpleNetDevice:

Public Member Functions
	SimpleNetDevice ()

void	AddLinkChangeCallback (Callback< void > callback) override

Address	GetAddress () const override

Address	GetBroadcast () const override

Ptr< Channel >	GetChannel () const override

uint32_t	GetIfIndex () const override

uint16_t	GetMtu () const override

Address	GetMulticast (Ipv4Address multicastGroup) const override
	Make and return a MAC multicast address using the provided multicast group.

Address	GetMulticast (Ipv6Address addr) const override
	Get the MAC multicast address corresponding to the IPv6 address provided.

Ptr< Node >	GetNode () const override

Ptr< Queue< Packet > >	GetQueue () const
	Get a copy of the attached Queue.

bool	IsBridge () const override
	Return true if the net device is acting as a bridge.

bool	IsBroadcast () const override

bool	IsLinkUp () const override

bool	IsMulticast () const override

bool	IsPointToPoint () const override
	Return true if the net device is on a point-to-point link.

bool	NeedsArp () const override

void	Receive (Ptr< Packet > packet, uint16_t protocol, Mac48Address to, Mac48Address from)
	Receive a packet from a connected SimpleChannel.

bool	Send (Ptr< Packet > packet, const Address &dest, uint16_t protocolNumber) override

bool	SendFrom (Ptr< Packet > packet, const Address &source, const Address &dest, uint16_t protocolNumber) override

void	SetAddress (Address address) override
	Set the address of this interface.

void	SetChannel (Ptr< SimpleChannel > channel)
	Attach a channel to this net device.

void	SetIfIndex (const uint32_t index) override

bool	SetMtu (const uint16_t mtu) override

void	SetNode (Ptr< Node > node) override

void	SetPromiscReceiveCallback (PromiscReceiveCallback cb) override

void	SetQueue (Ptr< Queue< Packet > > queue)
	Attach a queue to the SimpleNetDevice.

void	SetReceiveCallback (NetDevice::ReceiveCallback cb) override

void	SetReceiveErrorModel (Ptr< ErrorModel > em)
	Attach a receive ErrorModel to the SimpleNetDevice.

bool	SupportsSendFrom () const override

Public Member Functions inherited from ns3::NetDevice
	~NetDevice () override

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor.

	~Object () override
	Destructor.

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together.

void	Dispose ()
	Dispose of this Object.

AggregateIterator	GetAggregateIterator () const
	Get an iterator to the Objects aggregated to this one.

TypeId	GetInstanceTypeId () const override
	Get the most derived TypeId for this Object.

template<typename T >
Ptr< T >	GetObject () const
	Get a pointer to the requested aggregated Object.

template<>
Ptr< Object >	GetObject () const
	Specialization of () for objects of type ns3::Object.

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId.

template<>
Ptr< Object >	GetObject (TypeId tid) const
	Specialization of (TypeId tid) for objects of type ns3::Object.

void	Initialize ()
	Invoke DoInitialize on all Objects aggregated to this one.

bool	IsInitialized () const
	Check if the object has been initialized.

void	UnidirectionalAggregateObject (Ptr< Object > other)
	Aggregate an Object to another Object.

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Default constructor.

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

uint32_t	GetReferenceCount () const
	Get the reference count of the object.

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator.

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor.

void	GetAttribute (std::string name, AttributeValue &value, bool permissive=false) const
	Get the value of an attribute, raising fatal errors if unsuccessful.

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising errors.

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful.

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors.

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context.

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context.

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context.

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context.

Static Public Member Functions
static TypeId	GetTypeId ()
	Get the type ID.

Static Public Member Functions inherited from ns3::NetDevice
static TypeId	GetTypeId ()
	Get the type ID.

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId ()
	Register this type.

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId ()
	Get the type ID.

Protected Member Functions
void	DoDispose () override
	Destructor implementation.

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object.

virtual void	DoInitialize ()
	Initialize() implementation.

virtual void	NotifyNewAggregate ()
	Notify all Objects aggregated to this one of a new Object being aggregated.

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes.

virtual void	NotifyConstructionCompleted ()
	Notifier called once the ObjectBase is fully constructed.

Private Member Functions
void	FinishTransmission (Ptr< Packet > packet)
	The FinishTransmission method is used internally to finish the process of sending a packet out on the channel.

void	StartTransmission ()
	The StartTransmission method is used internally to start the process of sending a packet out on the channel, by scheduling the FinishTransmission method at a time corresponding to the transmission delay of the packet.

Private Attributes
EventId	FinishTransmissionEvent
	the Tx Complete event

Mac48Address	m_address
	MAC address.

DataRate	m_bps
	The device nominal Data rate.

Ptr< SimpleChannel >	m_channel
	the channel the device is connected to

uint32_t	m_ifIndex
	Interface index.

TracedCallback	m_linkChangeCallbacks
	List of callbacks to fire if the link changes state (up or down).

bool	m_linkUp
	Flag indicating whether or not the link is up.

uint16_t	m_mtu
	MTU.

Ptr< Node >	m_node
	Node this netDevice is associated to.

TracedCallback< Ptr< const Packet > >	m_phyRxDropTrace
	The trace source fired when the phy layer drops a packet it has received due to the error model being active.

bool	m_pointToPointMode
	Flag indicating whether or not the NetDevice is a Point to Point model.

NetDevice::PromiscReceiveCallback	m_promiscCallback
	Promiscuous receive callback.

Ptr< Queue< Packet > >	m_queue
	The Queue for outgoing packets.

Ptr< ErrorModel >	m_receiveErrorModel
	Receive error model.

NetDevice::ReceiveCallback	m_rxCallback
	Receive callback.

Additional Inherited Members
Public Types inherited from ns3::NetDevice
typedef void(*	LinkChangeTracedCallback) ()
	TracedCallback signature for link changed event.

enum	PacketType { PACKET_HOST = 1 , NS3_PACKET_HOST = PACKET_HOST , PACKET_BROADCAST , NS3_PACKET_BROADCAST = PACKET_BROADCAST , PACKET_MULTICAST , NS3_PACKET_MULTICAST = PACKET_MULTICAST , PACKET_OTHERHOST , NS3_PACKET_OTHERHOST = PACKET_OTHERHOST }
	Packet types are used as they are in Linux. More...

typedef Callback< bool, Ptr< NetDevice >, Ptr< const Packet >, uint16_t, const Address &, const Address &, PacketType >	PromiscReceiveCallback

typedef Callback< bool, Ptr< NetDevice >, Ptr< const Packet >, uint16_t, const Address & >	ReceiveCallback

Related Symbols inherited from ns3::ObjectBase
static TypeId	GetObjectIid ()
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly.

Detailed Description

This device assumes 48-bit mac addressing; there is also the possibility to add an ErrorModel if you want to force losses on the device.

The device can be installed on a node through the SimpleNetDeviceHelper. In case of manual creation, the user is responsible for assigning an unique address to the device.

By default the device is in Broadcast mode, with infinite bandwidth.

simple net device for simple things and testing

Definition at line 43 of file simple-net-device.h.

Constructor & Destructor Documentation

◆ SimpleNetDevice()

ns3::SimpleNetDevice::SimpleNetDevice ( )

Definition at line 213 of file simple-net-device.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ AddLinkChangeCallback()

void ns3::SimpleNetDevice::AddLinkChangeCallback ( Callback< void > callback )

overridevirtual

Parameters

callback the callback to invoke

Add a callback invoked whenever the link status changes to UP. This callback is typically used by the IP/ARP layer to flush the ARP cache and by IPv6 stack to flush NDISC cache whenever the link goes up.

Implements ns3::NetDevice.

Definition at line 355 of file simple-net-device.cc.

References ns3::TracedCallback< Ts >::ConnectWithoutContext(), m_linkChangeCallbacks, and NS_LOG_FUNCTION.

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◆ DoDispose()

void ns3::SimpleNetDevice::DoDispose ( )

overrideprotectedvirtual

Destructor implementation.

This method is called by Dispose() or by the Object's destructor, whichever comes first.

Subclasses are expected to implement their real destruction code in an overridden version of this method and chain up to their parent's implementation once they are done. i.e, for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose() method.

It is safe to call GetObject() from within this method.

Reimplemented from ns3::Object.

Definition at line 529 of file simple-net-device.cc.

References ns3::EventId::Cancel(), ns3::Object::Dispose(), ns3::Object::DoDispose(), FinishTransmissionEvent, ns3::EventId::IsPending(), m_channel, m_node, m_queue, m_receiveErrorModel, and NS_LOG_FUNCTION.

Referenced by ns3::LteSimpleNetDevice::DoDispose().

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◆ FinishTransmission()

void ns3::SimpleNetDevice::FinishTransmission ( Ptr< Packet > packet )

private

The FinishTransmission method is used internally to finish the process of sending a packet out on the channel.

Parameters

packet The packet to send on the channel

Definition at line 484 of file simple-net-device.cc.

References ns3::SimpleTag::GetDst(), ns3::SimpleTag::GetProto(), ns3::SimpleTag::GetSrc(), m_channel, NS_LOG_FUNCTION, and StartTransmission().

Referenced by StartTransmission().

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◆ GetAddress()

Address ns3::SimpleNetDevice::GetAddress ( ) const

overridevirtual

Returns: the current Address of this interface.

Implements ns3::NetDevice.

Definition at line 323 of file simple-net-device.cc.

References m_address, and NS_LOG_FUNCTION.

◆ GetBroadcast()

Address ns3::SimpleNetDevice::GetBroadcast ( ) const

overridevirtual

Returns: the broadcast address supported by this netdevice.

Calling this method is invalid if IsBroadcast returns not true.

Implements ns3::NetDevice.

Definition at line 369 of file simple-net-device.cc.

References ns3::Mac48Address::GetBroadcast(), and NS_LOG_FUNCTION.

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◆ GetChannel()

Ptr< Channel > ns3::SimpleNetDevice::GetChannel ( ) const

overridevirtual

Returns: the channel this NetDevice is connected to. The value returned can be zero if the NetDevice is not yet connected to any channel or if the underlying NetDevice has no concept of a channel. i.e., callers must check for zero and be ready to handle it.

Implements ns3::NetDevice.

Definition at line 309 of file simple-net-device.cc.

References m_channel, and NS_LOG_FUNCTION.

◆ GetIfIndex()

uint32_t ns3::SimpleNetDevice::GetIfIndex ( ) const

overridevirtual

Returns: index ifIndex of the device

Implements ns3::NetDevice.

Definition at line 302 of file simple-net-device.cc.

References m_ifIndex, and NS_LOG_FUNCTION.

◆ GetMtu()

uint16_t ns3::SimpleNetDevice::GetMtu ( ) const

overridevirtual

Returns: the link-level MTU in bytes for this interface.

This value is typically used by the IP layer to perform IP fragmentation when needed.

Implements ns3::NetDevice.

Definition at line 341 of file simple-net-device.cc.

References m_mtu, and NS_LOG_FUNCTION.

Referenced by SendFrom().

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◆ GetMulticast() [1/2]

Address ns3::SimpleNetDevice::GetMulticast ( Ipv4Address multicastGroup ) const

overridevirtual

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). Similar RFCs exist for Ipv6 and Eui64 mappings. This method performs the multicast address creation function appropriate to the underlying MAC address of the device. This MAC address is encapsulated in an abstract Address to avoid dependencies on the exact MAC address format.

In the case of net devices that do not support multicast, clients are expected to test NetDevice::IsMulticast and avoid attempting to map multicast packets. Subclasses of NetDevice that do support multicasting are expected to override this method and provide an implementation appropriate to the particular device.

Parameters

multicastGroup The IP address for the multicast group destination of the packet.

Returns: The MAC multicast Address used to send packets to the provided multicast group.

Warning: Calling this method is invalid if IsMulticast returns not true.

See also: IsMulticast()

Implements ns3::NetDevice.

Definition at line 383 of file simple-net-device.cc.

References ns3::Mac48Address::GetMulticast(), and NS_LOG_FUNCTION.

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◆ GetMulticast() [2/2]

Address ns3::SimpleNetDevice::GetMulticast ( Ipv6Address addr ) const

overridevirtual

Get the MAC multicast address corresponding to the IPv6 address provided.

Parameters

addr	IPv6 address

Returns: the MAC multicast address

Warning: Calling this method is invalid if IsMulticast returns not true.

Implements ns3::NetDevice.

Definition at line 390 of file simple-net-device.cc.

References ns3::Mac48Address::GetMulticast(), and NS_LOG_FUNCTION.

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◆ GetNode()

Ptr< Node > ns3::SimpleNetDevice::GetNode ( ) const

overridevirtual

Returns: the node base class which contains this network interface.

When a subclass needs to get access to the underlying node base class to print the nodeid for example, it can invoke this method.

Implements ns3::NetDevice.

Definition at line 501 of file simple-net-device.cc.

References m_node, and NS_LOG_FUNCTION.

◆ GetQueue()

Ptr< Queue< Packet > > ns3::SimpleNetDevice::GetQueue ( ) const

Get a copy of the attached Queue.

Returns: Ptr to the queue.

Definition at line 274 of file simple-net-device.cc.

References m_queue, and NS_LOG_FUNCTION.

◆ GetTypeId()

TypeId ns3::SimpleNetDevice::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 178 of file simple-net-device.cc.

References m_bps, m_phyRxDropTrace, m_pointToPointMode, m_queue, m_receiveErrorModel, ns3::MakeBooleanAccessor(), ns3::MakeBooleanChecker(), ns3::MakeDataRateAccessor(), ns3::MakeDataRateChecker(), ns3::MakePointerAccessor(), ns3::MakePointerChecker(), ns3::MakeTraceSourceAccessor(), and ns3::TypeId::SetParent().

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◆ IsBridge()

bool ns3::SimpleNetDevice::IsBridge ( ) const

overridevirtual

Return true if the net device is acting as a bridge.

Returns: value of m_isBridge flag

Implements ns3::NetDevice.

Definition at line 404 of file simple-net-device.cc.

References NS_LOG_FUNCTION.

◆ IsBroadcast()

bool ns3::SimpleNetDevice::IsBroadcast ( ) const

overridevirtual

Returns: true if this interface supports a broadcast address, false otherwise.

Implements ns3::NetDevice.

Definition at line 362 of file simple-net-device.cc.

References m_pointToPointMode, and NS_LOG_FUNCTION.

◆ IsLinkUp()

bool ns3::SimpleNetDevice::IsLinkUp ( ) const

overridevirtual

Returns: true if link is up; false otherwise

Implements ns3::NetDevice.

Definition at line 348 of file simple-net-device.cc.

References m_linkUp, and NS_LOG_FUNCTION.

◆ IsMulticast()

bool ns3::SimpleNetDevice::IsMulticast ( ) const

overridevirtual

Returns: value of m_isMulticast flag

Implements ns3::NetDevice.

Definition at line 376 of file simple-net-device.cc.

References m_pointToPointMode, and NS_LOG_FUNCTION.

◆ IsPointToPoint()

bool ns3::SimpleNetDevice::IsPointToPoint ( ) const

overridevirtual

Return true if the net device is on a point-to-point link.

Returns: value of m_isPointToPoint flag

Implements ns3::NetDevice.

Definition at line 397 of file simple-net-device.cc.

References m_pointToPointMode, and NS_LOG_FUNCTION.

◆ NeedsArp()

bool ns3::SimpleNetDevice::NeedsArp ( ) const

overridevirtual

Returns: true if ARP is needed, false otherwise.

Called by higher-layers to check if this NetDevice requires ARP to be used.

Implements ns3::NetDevice.

Definition at line 515 of file simple-net-device.cc.

References m_pointToPointMode, and NS_LOG_FUNCTION.

◆ Receive()

void ns3::SimpleNetDevice::Receive	(	Ptr< Packet >	packet,
		uint16_t	protocol,
		Mac48Address	to,
		Mac48Address	from )

Receive a packet from a connected SimpleChannel.

The SimpleNetDevice receives packets from its connected channel and then forwards them by calling its rx callback method

Parameters

packet	Packet received on the channel
protocol	protocol number
to	address packet should be sent to
from	address packet was sent from

Definition at line 224 of file simple-net-device.cc.

References ns3::Mac48Address::IsBroadcast(), ns3::Mac48Address::IsGroup(), ns3::Callback< R, UArgs >::IsNull(), m_address, m_phyRxDropTrace, m_promiscCallback, m_receiveErrorModel, m_rxCallback, NS_LOG_FUNCTION, ns3::NetDevice::PACKET_BROADCAST, ns3::NetDevice::PACKET_HOST, ns3::NetDevice::PACKET_MULTICAST, and ns3::NetDevice::PACKET_OTHERHOST.

Referenced by ns3::ErrorChannel::Send(), and ns3::SimpleChannel::Send().

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◆ Send()

bool ns3::SimpleNetDevice::Send	(	Ptr< Packet >	packet,
		const Address &	dest,
		uint16_t	protocolNumber )

overridevirtual

Parameters

packet	packet sent from above down to Network Device
dest	mac address of the destination (already resolved)
protocolNumber	identifies the type of payload contained in this packet. Used to call the right L3Protocol when the packet is received.

Called from higher layer to send packet into Network Device to the specified destination Address

Returns: whether the Send operation succeeded

Implements ns3::NetDevice.

Definition at line 411 of file simple-net-device.cc.

References m_address, NS_LOG_FUNCTION, and SendFrom().

Referenced by ns3::LteSimpleNetDevice::Send().

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◆ SendFrom()

bool ns3::SimpleNetDevice::SendFrom	(	Ptr< Packet >	packet,
		const Address &	source,
		const Address &	dest,
		uint16_t	protocolNumber )

overridevirtual

Parameters

packet	packet sent from above down to Network Device
source	source mac address (so called "MAC spoofing")
dest	mac address of the destination (already resolved)
protocolNumber	identifies the type of payload contained in this packet. Used to call the right L3Protocol when the packet is received.

Called from higher layer to send packet into Network Device with the specified source and destination Addresses.

Returns: whether the Send operation succeeded

Implements ns3::NetDevice.

Definition at line 419 of file simple-net-device.cc.

References ns3::Mac48Address::ConvertFrom(), FinishTransmissionEvent, GetMtu(), ns3::EventId::IsPending(), m_queue, NS_LOG_FUNCTION, ns3::SimpleTag::SetDst(), ns3::SimpleTag::SetProto(), ns3::SimpleTag::SetSrc(), and StartTransmission().

Referenced by Send().

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◆ SetAddress()

void ns3::SimpleNetDevice::SetAddress ( Address address )

overridevirtual

Set the address of this interface.

Parameters

address address to set

Implements ns3::NetDevice.

Definition at line 316 of file simple-net-device.cc.

References ns3::Mac48Address::ConvertFrom(), m_address, and NS_LOG_FUNCTION.

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◆ SetChannel()

void ns3::SimpleNetDevice::SetChannel ( Ptr< SimpleChannel > channel )

Attach a channel to this net device.

This will be the channel the net device sends on

Parameters

channel channel to assign to this net device

Definition at line 264 of file simple-net-device.cc.

References m_channel, m_linkChangeCallbacks, m_linkUp, and NS_LOG_FUNCTION.

◆ SetIfIndex()

void ns3::SimpleNetDevice::SetIfIndex ( const uint32_t index )

overridevirtual

Parameters

index ifIndex of the device

Implements ns3::NetDevice.

Definition at line 295 of file simple-net-device.cc.

References m_ifIndex, and NS_LOG_FUNCTION.

◆ SetMtu()

bool ns3::SimpleNetDevice::SetMtu ( const uint16_t mtu )

overridevirtual

Parameters

mtu	MTU value, in bytes, to set for the device

Returns: whether the MTU value was within legal bounds

Override for default MTU defined on a per-type basis.

Implements ns3::NetDevice.

Definition at line 333 of file simple-net-device.cc.

References m_mtu, and NS_LOG_FUNCTION.

◆ SetNode()

void ns3::SimpleNetDevice::SetNode ( Ptr< Node > node )

overridevirtual

Parameters

node	the node associated to this netdevice.

This method is called from ns3::Node::AddDevice.

Implements ns3::NetDevice.

Definition at line 508 of file simple-net-device.cc.

References m_node, and NS_LOG_FUNCTION.

Referenced by ns3::LteSimpleNetDevice::LteSimpleNetDevice().

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◆ SetPromiscReceiveCallback()

void ns3::SimpleNetDevice::SetPromiscReceiveCallback ( PromiscReceiveCallback cb )

overridevirtual

Parameters

cb	callback to invoke whenever a packet has been received in promiscuous mode and must be forwarded to the higher layers.

Enables netdevice promiscuous mode and sets the callback that will handle promiscuous mode packets. Note, promiscuous mode packets means all packets, including those packets that can be sensed by the netdevice but which are intended to be received by other hosts.

Implements ns3::NetDevice.

Definition at line 544 of file simple-net-device.cc.

References m_promiscCallback, and NS_LOG_FUNCTION.

◆ SetQueue()

void ns3::SimpleNetDevice::SetQueue ( Ptr< Queue< Packet > > queue )

Attach a queue to the SimpleNetDevice.

Parameters

queue Ptr to the new queue.

Definition at line 281 of file simple-net-device.cc.

References m_queue, and NS_LOG_FUNCTION.

◆ SetReceiveCallback()

void ns3::SimpleNetDevice::SetReceiveCallback ( NetDevice::ReceiveCallback cb )

overridevirtual

Parameters

cb	callback to invoke whenever a packet has been received and must be forwarded to the higher layers.

Set the callback to be used to notify higher layers when a packet has been received.

Implements ns3::NetDevice.

Definition at line 522 of file simple-net-device.cc.

References m_rxCallback, and NS_LOG_FUNCTION.

◆ SetReceiveErrorModel()

void ns3::SimpleNetDevice::SetReceiveErrorModel ( Ptr< ErrorModel > em )

Attach a receive ErrorModel to the SimpleNetDevice.

The SimpleNetDevice may optionally include an ErrorModel in the packet receive chain.

See also: ErrorModel

Parameters

em	Ptr to the ErrorModel.

Definition at line 288 of file simple-net-device.cc.

References m_receiveErrorModel, and NS_LOG_FUNCTION.

◆ StartTransmission()

void ns3::SimpleNetDevice::StartTransmission ( )

private

The StartTransmission method is used internally to start the process of sending a packet out on the channel, by scheduling the FinishTransmission method at a time corresponding to the transmission delay of the packet.

SimpleChannel will deliver the packet to the far end(s) of the link as soon as Send is called (or after its fixed delay, if one is configured). So we have to handle the rate of the link here, which we do by scheduling FinishTransmission (packetSize / linkRate) time in the future. While that event is running, the transmit path of this NetDevice is busy, so we can't send other packets.

SimpleChannel doesn't have a locking mechanism, and doesn't check for collisions, so there's nothing we need to do with the channel until the transmission has "completed" from the perspective of this NetDevice.

Definition at line 453 of file simple-net-device.cc.

References ns3::DataRate::CalculateBytesTxTime(), FinishTransmission(), FinishTransmissionEvent, ns3::EventId::IsPending(), m_bps, m_queue, NS_ASSERT_MSG, and ns3::Simulator::Schedule().

Referenced by FinishTransmission(), and SendFrom().

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◆ SupportsSendFrom()

bool ns3::SimpleNetDevice::SupportsSendFrom ( ) const

overridevirtual

Returns: true if this interface supports a bridging mode, false otherwise.

Implements ns3::NetDevice.

Definition at line 551 of file simple-net-device.cc.

References NS_LOG_FUNCTION.

Member Data Documentation

◆ FinishTransmissionEvent

EventId ns3::SimpleNetDevice::FinishTransmissionEvent

private

the Tx Complete event

Definition at line 178 of file simple-net-device.h.

Referenced by DoDispose(), SendFrom(), and StartTransmission().

◆ m_address

Mac48Address ns3::SimpleNetDevice::m_address

private

MAC address.

Definition at line 140 of file simple-net-device.h.

Referenced by GetAddress(), Receive(), Send(), and SetAddress().

◆ m_bps

DataRate ns3::SimpleNetDevice::m_bps

private

The device nominal Data rate.

Zero means infinite

Definition at line 177 of file simple-net-device.h.

Referenced by GetTypeId(), and StartTransmission().

◆ m_channel

Ptr<SimpleChannel> ns3::SimpleNetDevice::m_channel

private

the channel the device is connected to

Definition at line 134 of file simple-net-device.h.

Referenced by DoDispose(), FinishTransmission(), GetChannel(), and SetChannel().

◆ m_ifIndex

uint32_t ns3::SimpleNetDevice::m_ifIndex

private

Interface index.

Definition at line 139 of file simple-net-device.h.

Referenced by GetIfIndex(), and SetIfIndex().

◆ m_linkChangeCallbacks

TracedCallback ns3::SimpleNetDevice::m_linkChangeCallbacks

private

List of callbacks to fire if the link changes state (up or down).

Definition at line 183 of file simple-net-device.h.

Referenced by AddLinkChangeCallback(), and SetChannel().

◆ m_linkUp

bool ns3::SimpleNetDevice::m_linkUp

private

Flag indicating whether or not the link is up.

Definition at line 168 of file simple-net-device.h.

Referenced by IsLinkUp(), and SetChannel().

◆ m_mtu

uint16_t ns3::SimpleNetDevice::m_mtu

private

MTU.

Definition at line 138 of file simple-net-device.h.

Referenced by GetMtu(), and SetMtu().

◆ m_node

Ptr<Node> ns3::SimpleNetDevice::m_node

private

Node this netDevice is associated to.

Definition at line 137 of file simple-net-device.h.

Referenced by DoDispose(), GetNode(), and SetNode().

◆ m_phyRxDropTrace

TracedCallback<Ptr<const Packet> > ns3::SimpleNetDevice::m_phyRxDropTrace

private

The trace source fired when the phy layer drops a packet it has received due to the error model being active.

Although SimpleNetDevice doesn't really have a Phy model, we choose this trace source name for alignment with other trace sources.

See also: class CallBackTraceSource

Definition at line 151 of file simple-net-device.h.

Referenced by GetTypeId(), and Receive().

◆ m_pointToPointMode

bool ns3::SimpleNetDevice::m_pointToPointMode

private

Flag indicating whether or not the NetDevice is a Point to Point model.

Enabling this will disable Broadcast and Arp.

Definition at line 174 of file simple-net-device.h.

Referenced by GetTypeId(), IsBroadcast(), IsMulticast(), IsPointToPoint(), and NeedsArp().

◆ m_promiscCallback

NetDevice::PromiscReceiveCallback ns3::SimpleNetDevice::m_promiscCallback

private

Promiscuous receive callback.

Definition at line 136 of file simple-net-device.h.

Referenced by Receive(), and SetPromiscReceiveCallback().

◆ m_queue

Ptr<Queue<Packet> > ns3::SimpleNetDevice::m_queue

private

The Queue for outgoing packets.

Definition at line 176 of file simple-net-device.h.

Referenced by DoDispose(), GetQueue(), GetTypeId(), SendFrom(), SetQueue(), and StartTransmission().

◆ m_receiveErrorModel

Ptr<ErrorModel> ns3::SimpleNetDevice::m_receiveErrorModel

private

Receive error model.

Definition at line 141 of file simple-net-device.h.

Referenced by DoDispose(), GetTypeId(), Receive(), and SetReceiveErrorModel().

◆ m_rxCallback

NetDevice::ReceiveCallback ns3::SimpleNetDevice::m_rxCallback

private

Receive callback.

Definition at line 135 of file simple-net-device.h.

Referenced by Receive(), and SetReceiveCallback().

The documentation for this class was generated from the following files:

src/network/utils/simple-net-device.h
src/network/utils/simple-net-device.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SimpleNetDevice()

Member Function Documentation

◆ AddLinkChangeCallback()

◆ DoDispose()

◆ FinishTransmission()

◆ GetAddress()

◆ GetBroadcast()

◆ GetChannel()

◆ GetIfIndex()

◆ GetMtu()

◆ GetMulticast() [1/2]

◆ GetMulticast() [2/2]

◆ GetNode()

◆ GetQueue()

◆ GetTypeId()

◆ IsBridge()

◆ IsBroadcast()

◆ IsLinkUp()

◆ IsMulticast()

◆ IsPointToPoint()

◆ NeedsArp()

◆ Receive()

◆ Send()

◆ SendFrom()

◆ SetAddress()

◆ SetChannel()

◆ SetIfIndex()

◆ SetMtu()

◆ SetNode()

◆ SetPromiscReceiveCallback()

◆ SetQueue()

◆ SetReceiveCallback()

◆ SetReceiveErrorModel()

◆ StartTransmission()

◆ SupportsSendFrom()

Member Data Documentation

◆ FinishTransmissionEvent

◆ m_address

◆ m_bps

◆ m_channel

◆ m_ifIndex

◆ m_linkChangeCallbacks

◆ m_linkUp

◆ m_mtu

◆ m_node

◆ m_phyRxDropTrace

◆ m_pointToPointMode

◆ m_promiscCallback

◆ m_queue

◆ m_receiveErrorModel

◆ m_rxCallback