Nix-vector routing protocol. More...

#include "nix-vector-routing.h"

Inheritance diagram for ns3::NixVectorRouting< T >:

Collaboration diagram for ns3::NixVectorRouting< T >:

Public Member Functions
	NixVectorRouting ()

	~NixVectorRouting ()

void	FlushGlobalNixRoutingCache () const
	Called when run-time link topology change occurs which iterates through the node list and flushes any nix vector caches.

void	PrintRoutingPath (Ptr< Node > source, IpAddress dest, Ptr< OutputStreamWrapper > stream, Time::Unit unit) const
	Print the Routing Path according to Nix Routing.

void	SetNode (Ptr< Node > node)
	Set the Node pointer of the node for which this routing protocol is to be placed.

Static Public Member Functions
static TypeId	GetTypeId ()
	The Interface ID of the Global Router interface.

Private Types
typedef Callback< void, Ptr< const Packet >, const IpHeader &, Socket::SocketErrno >	ErrorCallback
	Callback for routing errors (e.g., no route found)

using	Ip = typename std::conditional_t< IsIpv4, Ipv4, Ipv6 >
	Alias for Ipv4 and Ipv6 classes.

using	IpAddress = typename std::conditional_t< IsIpv4, Ipv4Address, Ipv6Address >
	Alias for Ipv4Address and Ipv6Address classes.

using	IpAddressHash = typename std::conditional_t< IsIpv4, Ipv4AddressHash, Ipv6AddressHash >
	Alias for Ipv4AddressHash and Ipv6AddressHash classes.

typedef std::unordered_map< IpAddress, ns3::Ptr< ns3::Node >, IpAddressHash >	IpAddressToNodeMap
	Mapping of IP address to ns-3 node.

using	IpHeader = typename std::conditional_t< IsIpv4, Ipv4Header, Ipv6Header >
	Alias for Ipv4Header and Ipv6Header classes.

using	IpInterface = typename std::conditional_t< IsIpv4, Ipv4Interface, Ipv6Interface >
	Alias for Ipv4Interface and Ipv6Interface classes.

using	IpInterfaceAddress = typename std::conditional_t< IsIpv4, Ipv4InterfaceAddress, Ipv6InterfaceAddress >
	Alias for Ipv4InterfaceAddress and Ipv6InterfaceAddress classes.

using	IpL3Protocol = typename std::conditional_t< IsIpv4, Ipv4L3Protocol, Ipv6L3Protocol >
	Alias for Ipv4L3Protocol and Ipv4L3Protocol classes.

using	IpRoute = typename std::conditional_t< IsIpv4, Ipv4Route, Ipv6Route >
	Alias for Ipv4Route and Ipv6Route classes.

typedef std::map< IpAddress, Ptr< IpRoute > >	IpRouteMap_t
	Map of IpAddress to IpRoute.

typedef Callback< void, Ptr< const Packet >, const IpHeader &, uint32_t >	LocalDeliverCallback
	Callback for packets to be locally delivered.

typedef std::conditional_t< IsIpv4, MulticastForwardCallbackv4, MulticastForwardCallbackv6 >	MulticastForwardCallback
	Callback for multicast packets to be forwarded.

typedef Callback< void, Ptr< Ipv4MulticastRoute >, Ptr< const Packet >, const IpHeader & >	MulticastForwardCallbackv4
	Callback for IPv4 multicast packets to be forwarded.

typedef Callback< void, Ptr< const NetDevice >, Ptr< Ipv6MulticastRoute >, Ptr< const Packet >, const IpHeader & >	MulticastForwardCallbackv6
	Callback for IPv6 multicast packets to be forwarded.

typedef std::unordered_map< Ptr< NetDevice >, Ptr< IpInterface > >	NetDeviceToIpInterfaceMap
	Mapping of Ptr<NetDevice> to Ptr<IpInterface>.

typedef std::map< IpAddress, Ptr< NixVector > >	NixMap_t
	Map of IpAddress to NixVector.

typedef std::conditional_t< IsIpv4, UnicastForwardCallbackv4, UnicastForwardCallbackv6 >	UnicastForwardCallback
	Callback for unicast packets to be forwarded.

typedef Callback< void, Ptr< IpRoute >, Ptr< const Packet >, const IpHeader & >	UnicastForwardCallbackv4
	Callback for IPv4 unicast packets to be forwarded.

typedef Callback< void, Ptr< const NetDevice >, Ptr< IpRoute >, Ptr< const Packet >, const IpHeader & >	UnicastForwardCallbackv6
	Callback for IPv6 unicast packets to be forwarded.

Private Member Functions
bool	BFS (uint32_t numberOfNodes, Ptr< Node > source, Ptr< Node > dest, std::vector< Ptr< Node > > &parentVector, Ptr< NetDevice > oif) const
	Breadth first search algorithm.

void	BuildIpAddressToNodeMap () const
	Build map from IP Address to Node for faster lookup.

bool	BuildNixVector (const std::vector< Ptr< Node > > &parentVector, uint32_t source, uint32_t dest, Ptr< NixVector > nixVector) const
	Recurses the T vector, created by BFS and actually builds the nixvector.

void	CheckCacheStateAndFlush () const
	Flushes routing caches if required.

void	DoDispose ()

void	DoInitialize ()

uint32_t	FindNetDeviceForNixIndex (Ptr< Node > node, uint32_t nodeIndex, IpAddress &gatewayIp) const
	Nix index is with respect to the neighbors.

uint32_t	FindTotalNeighbors (Ptr< Node > node) const
	Simply iterates through the nodes net-devices and determines how many neighbors the node has.

void	FlushIpRouteCache () const
	Flushes the cache which stores the Ip route based on the destination IP.

void	FlushNixCache () const
	Flushes the cache which stores nix-vector based on destination IP.

void	GetAdjacentNetDevices (Ptr< NetDevice > netDevice, Ptr< Channel > channel, NetDeviceContainer &netDeviceContainer) const
	Given a net-device returns all the adjacent net-devices, essentially getting the neighbors on that channel.

Ptr< IpInterface >	GetInterfaceByNetDevice (Ptr< NetDevice > netDevice) const
	Iterates through the node list and finds the one corresponding to the given IpAddress.

Ptr< IpRoute >	GetIpRouteInCache (IpAddress address)
	Checks the cache based on dest IP for the IpRoute.

Ptr< NixVector >	GetNixVector (Ptr< Node > source, IpAddress dest, Ptr< NetDevice > oif) const
	Takes in the source node and dest IP and calls GetNodeByIp, BFS, accounting for any output interface specified, and finally BuildNixVector to return the built nix-vector.

Ptr< NixVector >	GetNixVectorInCache (const IpAddress &address, bool &foundInCache) const
	Checks the cache based on dest IP for the nix-vector.

Ptr< Node >	GetNodeByIp (IpAddress dest) const
	Iterates through the node list and finds the one corresponding to the given IpAddress.

Ptr< BridgeNetDevice >	NetDeviceIsBridged (Ptr< NetDevice > nd) const
	Determine if the NetDevice is bridged.

virtual void	NotifyAddAddress (uint32_t interface, IpInterfaceAddress address)

virtual void	NotifyAddRoute (IpAddress dst, Ipv6Prefix mask, IpAddress nextHop, uint32_t interface, IpAddress prefixToUse=IpAddress::GetZero())
	Notify a new route.

virtual void	NotifyInterfaceDown (uint32_t interface)

virtual void	NotifyInterfaceUp (uint32_t interface)

virtual void	NotifyRemoveAddress (uint32_t interface, IpInterfaceAddress address)

virtual void	NotifyRemoveRoute (IpAddress dst, Ipv6Prefix mask, IpAddress nextHop, uint32_t interface, IpAddress prefixToUse=IpAddress::GetZero())
	Notify route removing.

virtual void	PrintRoutingTable (Ptr< OutputStreamWrapper > stream, Time::Unit unit=Time::S) const
	Print the Routing Table entries.

void	ResetTotalNeighbors ()
	Upon a run-time topology change caches are flushed and the total number of neighbors is reset to zero.

virtual bool	RouteInput (Ptr< const Packet > p, const IpHeader &header, Ptr< const NetDevice > idev, const UnicastForwardCallback &ucb, const MulticastForwardCallback &mcb, const LocalDeliverCallback &lcb, const ErrorCallback &ecb)
	Route an input packet (to be forwarded or locally delivered)

virtual Ptr< IpRoute >	RouteOutput (Ptr< Packet > p, const IpHeader &header, Ptr< NetDevice > oif, Socket::SocketErrno &sockerr)
	Query routing cache for an existing route, for an outbound packet.

virtual void	SetIpv4 (Ptr< Ip > ipv4)
	Typically, invoked directly or indirectly from ns3::Ipv4::SetRoutingProtocol.

virtual void	SetIpv6 (Ptr< Ip > ipv6)
	Typically, invoked directly or indirectly from ns3::Ipv6::SetRoutingProtocol.

Private Attributes
Ptr< Ip >	m_ip
	IP object.

IpRouteMap_t	m_ipRouteCache
	Cache stores IpRoutes based on destination ip.

NixMap_t	m_nixCache
	Cache stores nix-vectors based on destination ip.

Ptr< Node >	m_node
	Node object.

uint32_t	m_totalNeighbors
	Total neighbors used for nix-vector to determine number of bits.

Static Private Attributes
static uint32_t	g_epoch = 1
	Nix Epoch, incremented each time a flush is performed.

static IpAddressToNodeMap	g_ipAddressToNodeMap
	Address to node map.

static bool	g_isCacheDirty = false
	Flag to mark when caches are dirty and need to be flushed.

static NetDeviceToIpInterfaceMap	g_netdeviceToIpInterfaceMap
	NetDevice pointer to IpInterface pointer map.

static constexpr bool	IsIpv4 = std::is_same_v<Ipv4RoutingProtocol, T>
	Alias for determining whether the parent is Ipv4RoutingProtocol or Ipv6RoutingProtocol.

Detailed Description

template<typename T>
class ns3::NixVectorRouting< T >

Nix-vector routing protocol.

Internal:: Since this class is meant to be specialized only by Ipv4RoutingProtocol or Ipv6RoutingProtocol the implementation of this class doesn't need to be exposed here; it is in nix-vector-routing.cc.

Definition at line 69 of file nix-vector-routing.h.

Member Typedef Documentation

◆ ErrorCallback

template<typename T >

typedef Callback<void, Ptr<const Packet>, const IpHeader&, Socket::SocketErrno> ns3::NixVectorRouting< T >::ErrorCallback

private

Callback for routing errors (e.g., no route found)

Definition at line 324 of file nix-vector-routing.h.

◆ Ip

template<typename T >

using ns3::NixVectorRouting< T >::Ip = typename std::conditional_t<IsIpv4, Ipv4, Ipv6>

private

Alias for Ipv4 and Ipv6 classes.

Definition at line 77 of file nix-vector-routing.h.

◆ IpAddress

template<typename T >

using ns3::NixVectorRouting< T >::IpAddress = typename std::conditional_t<IsIpv4, Ipv4Address, Ipv6Address>

private

Alias for Ipv4Address and Ipv6Address classes.

Definition at line 80 of file nix-vector-routing.h.

◆ IpAddressHash

template<typename T >

using ns3::NixVectorRouting< T >::IpAddressHash = typename std::conditional_t<IsIpv4, Ipv4AddressHash, Ipv6AddressHash>

private

Alias for Ipv4AddressHash and Ipv6AddressHash classes.

Definition at line 86 of file nix-vector-routing.h.

◆ IpAddressToNodeMap

template<typename T >

typedef std::unordered_map<IpAddress, ns3::Ptr<ns3::Node>, IpAddressHash> ns3::NixVectorRouting< T >::IpAddressToNodeMap

private

Mapping of IP address to ns-3 node.

Used to avoid linear searching of nodes/devices to find a node in GetNodeByIp() method. NIX vector routing assumes IP addresses are unique so mapping can be done without duplication.

Definition at line 513 of file nix-vector-routing.h.

◆ IpHeader

template<typename T >

using ns3::NixVectorRouting< T >::IpHeader = typename std::conditional_t<IsIpv4, Ipv4Header, Ipv6Header>

private

Alias for Ipv4Header and Ipv6Header classes.

Definition at line 89 of file nix-vector-routing.h.

◆ IpInterface

template<typename T >

using ns3::NixVectorRouting< T >::IpInterface = typename std::conditional_t<IsIpv4, Ipv4Interface, Ipv6Interface>

private

Alias for Ipv4Interface and Ipv6Interface classes.

Definition at line 96 of file nix-vector-routing.h.

◆ IpInterfaceAddress

template<typename T >

using ns3::NixVectorRouting< T >::IpInterfaceAddress = typename std::conditional_t<IsIpv4, Ipv4InterfaceAddress, Ipv6InterfaceAddress>

private

Alias for Ipv4InterfaceAddress and Ipv6InterfaceAddress classes.

Definition at line 92 of file nix-vector-routing.h.

◆ IpL3Protocol

template<typename T >

using ns3::NixVectorRouting< T >::IpL3Protocol = typename std::conditional_t<IsIpv4, Ipv4L3Protocol, Ipv6L3Protocol>

private

Alias for Ipv4L3Protocol and Ipv4L3Protocol classes.

Definition at line 99 of file nix-vector-routing.h.

◆ IpRoute

template<typename T >

using ns3::NixVectorRouting< T >::IpRoute = typename std::conditional_t<IsIpv4, Ipv4Route, Ipv6Route>

private

Alias for Ipv4Route and Ipv6Route classes.

Definition at line 83 of file nix-vector-routing.h.

◆ IpRouteMap_t

template<typename T >

typedef std::map<IpAddress, Ptr<IpRoute> > ns3::NixVectorRouting< T >::IpRouteMap_t

private

Map of IpAddress to IpRoute.

Definition at line 289 of file nix-vector-routing.h.

◆ LocalDeliverCallback

template<typename T >

typedef Callback<void, Ptr<const Packet>, const IpHeader&, uint32_t> ns3::NixVectorRouting< T >::LocalDeliverCallback

private

Callback for packets to be locally delivered.

Definition at line 321 of file nix-vector-routing.h.

◆ MulticastForwardCallback

template<typename T >

typedef std::conditional_t<IsIpv4, MulticastForwardCallbackv4, MulticastForwardCallbackv6> ns3::NixVectorRouting< T >::MulticastForwardCallback

private

Callback for multicast packets to be forwarded.

Definition at line 318 of file nix-vector-routing.h.

◆ MulticastForwardCallbackv4

template<typename T >

typedef Callback<void, Ptr<Ipv4MulticastRoute>, Ptr<const Packet>, const IpHeader&> ns3::NixVectorRouting< T >::MulticastForwardCallbackv4

private

Callback for IPv4 multicast packets to be forwarded.

Definition at line 305 of file nix-vector-routing.h.

◆ MulticastForwardCallbackv6

template<typename T >

typedef Callback<void, Ptr<const NetDevice>, Ptr<Ipv6MulticastRoute>, Ptr<const Packet>, const IpHeader&> ns3::NixVectorRouting< T >::MulticastForwardCallbackv6

private

Callback for IPv6 multicast packets to be forwarded.

Definition at line 313 of file nix-vector-routing.h.

◆ NetDeviceToIpInterfaceMap

template<typename T >

typedef std::unordered_map<Ptr<NetDevice>, Ptr<IpInterface> > ns3::NixVectorRouting< T >::NetDeviceToIpInterfaceMap

private

Mapping of Ptr<NetDevice> to Ptr<IpInterface>.

Definition at line 517 of file nix-vector-routing.h.

◆ NixMap_t

template<typename T >

typedef std::map<IpAddress, Ptr<NixVector> > ns3::NixVectorRouting< T >::NixMap_t

private

Map of IpAddress to NixVector.

Definition at line 287 of file nix-vector-routing.h.

◆ UnicastForwardCallback

template<typename T >

typedef std::conditional_t<IsIpv4, UnicastForwardCallbackv4, UnicastForwardCallbackv6> ns3::NixVectorRouting< T >::UnicastForwardCallback

private

Callback for unicast packets to be forwarded.

Definition at line 301 of file nix-vector-routing.h.

◆ UnicastForwardCallbackv4

template<typename T >

typedef Callback<void, Ptr<IpRoute>, Ptr<const Packet>, const IpHeader&> ns3::NixVectorRouting< T >::UnicastForwardCallbackv4

private

Callback for IPv4 unicast packets to be forwarded.

Definition at line 293 of file nix-vector-routing.h.

◆ UnicastForwardCallbackv6

template<typename T >

typedef Callback<void, Ptr<const NetDevice>, Ptr<IpRoute>, Ptr<const Packet>, const IpHeader&> ns3::NixVectorRouting< T >::UnicastForwardCallbackv6

private

Callback for IPv6 unicast packets to be forwarded.

Definition at line 297 of file nix-vector-routing.h.

Constructor & Destructor Documentation

◆ NixVectorRouting()

template<typename T >

ns3::NixVectorRouting< T >::NixVectorRouting

Definition at line 79 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION_NOARGS.

◆ ~NixVectorRouting()

template<typename T >

ns3::NixVectorRouting< T >::~NixVectorRouting

Definition at line 86 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ BFS()

template<typename T >

bool ns3::NixVectorRouting< T >::BFS	(	uint32_t	numberOfNodes,
		Ptr< Node >	source,
		Ptr< Node >	dest,
		std::vector< Ptr< Node > > &	parentVector,
		Ptr< NetDevice >	oif
	)		const

private

Breadth first search algorithm.

Parameters

[in]	numberOfNodes	total number of nodes
[in]	source	Source Node
[in]	dest	Destination Node
[out]	parentVector	Parent vector for retracing routes
[in]	oif	specific output interface to use from source node, if not null

Returns: false if dest not found, true o.w.

Definition at line 1125 of file nix-vector-routing.cc.

References ns3::NetDeviceContainer::Begin(), ns3::NetDeviceContainer::End(), NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ BuildIpAddressToNodeMap()

template<typename T >

void ns3::NixVectorRouting< T >::BuildIpAddressToNodeMap

private

Build map from IP Address to Node for faster lookup.

Definition at line 462 of file nix-vector-routing.cc.

References ns3::NodeList::Begin(), ns3::NodeList::End(), NS_ABORT_MSG_IF, NS_LOG_FUNCTION_NOARGS, and NS_LOG_LOGIC.

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◆ BuildNixVector()

template<typename T >

bool ns3::NixVectorRouting< T >::BuildNixVector	(	const std::vector< Ptr< Node > > &	parentVector,
		uint32_t	source,
		uint32_t	dest,
		Ptr< NixVector >	nixVector
	)		const

private

Recurses the T vector, created by BFS and actually builds the nixvector.

Parameters

[in]	parentVector	Parent vector for retracing routes
[in]	source	Source Node index
[in]	dest	Destination Node index
[out]	nixVector	the NixVector to be used for routing

Returns: true on success, false otherwise.

Definition at line 284 of file nix-vector-routing.cc.

References ns3::NetDeviceContainer::Begin(), ns3::NetDeviceContainer::End(), ns3::NetDeviceContainer::GetN(), NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ CheckCacheStateAndFlush()

template<typename T >

void ns3::NixVectorRouting< T >::CheckCacheStateAndFlush

private

Flushes routing caches if required.

Definition at line 1422 of file nix-vector-routing.cc.

◆ DoDispose()

template<typename T >

void ns3::NixVectorRouting< T >::DoDispose

private

See also: Ipv4RoutingProtocol::DoDispose; Ipv6RoutingProtocol::DoDispose

Definition at line 129 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION_NOARGS.

◆ DoInitialize()

template<typename T >

void ns3::NixVectorRouting< T >::DoInitialize

private

See also: Ipv4RoutingProtocol::DoInitialize; Ipv6RoutingProtocol::DoInitialize

Definition at line 115 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION.

◆ FindNetDeviceForNixIndex()

template<typename T >

uint32_t ns3::NixVectorRouting< T >::FindNetDeviceForNixIndex	(	Ptr< Node >	node,
		uint32_t	nodeIndex,
		IpAddress &	gatewayIp
	)		const

private

Nix index is with respect to the neighbors.

The net-device index must be derived from this

Parameters

[in]	node	the current node under consideration
[in]	nodeIndex	Nix Node index
[out]	gatewayIp	IP address of the gateway

Returns: the index of the NetDevice in the node.

Definition at line 649 of file nix-vector-routing.cc.

References ns3::NetDeviceContainer::Get(), ns3::NetDeviceContainer::GetN(), and NS_LOG_FUNCTION.

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◆ FindTotalNeighbors()

template<typename T >

uint32_t ns3::NixVectorRouting< T >::FindTotalNeighbors ( Ptr< Node > node ) const

private

Simply iterates through the nodes net-devices and determines how many neighbors the node has.

Parameters

[in] node node pointer

Returns: the number of neighbors of m_node.

Definition at line 572 of file nix-vector-routing.cc.

References ns3::NetDeviceContainer::GetN(), and NS_LOG_FUNCTION.

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◆ FlushGlobalNixRoutingCache()

template<typename T >

template void ns3::NixVectorRouting< T >::FlushGlobalNixRoutingCache ( ) const

Called when run-time link topology change occurs which iterates through the node list and flushes any nix vector caches.

Internal:: const is used here due to need to potentially flush the cache in const methods such as PrintRoutingTable. Caches are stored in mutable variables and flushed in const methods.

Definition at line 150 of file nix-vector-routing.cc.

References ns3::NodeList::Begin(), ns3::NodeList::End(), NS_LOG_FUNCTION_NOARGS, and NS_LOG_LOGIC.

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◆ FlushIpRouteCache()

template<typename T >

void ns3::NixVectorRouting< T >::FlushIpRouteCache

private

Flushes the cache which stores the Ip route based on the destination IP.

Definition at line 183 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION_NOARGS.

◆ FlushNixCache()

template<typename T >

void ns3::NixVectorRouting< T >::FlushNixCache

private

Flushes the cache which stores nix-vector based on destination IP.

Definition at line 175 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION_NOARGS.

◆ GetAdjacentNetDevices()

template<typename T >

void ns3::NixVectorRouting< T >::GetAdjacentNetDevices	(	Ptr< NetDevice >	netDevice,
		Ptr< Channel >	channel,
		NetDeviceContainer &	netDeviceContainer
	)		const

private

Given a net-device returns all the adjacent net-devices, essentially getting the neighbors on that channel.

Parameters

[in]	netDevice	the NetDevice attached to the channel.
[in]	channel	the channel to check
[out]	netDeviceContainer	the NetDeviceContainer of the NetDevices in the channel.

Definition at line 361 of file nix-vector-routing.cc.

References ns3::NetDeviceContainer::Add(), ns3::Ipv6InterfaceAddress::LINKLOCAL, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ GetInterfaceByNetDevice()

template<typename T >

Ptr< typename NixVectorRouting< T >::IpInterface > ns3::NixVectorRouting< T >::GetInterfaceByNetDevice ( Ptr< NetDevice > netDevice ) const

private

Iterates through the node list and finds the one corresponding to the given IpAddress.

Parameters

netDevice NetDevice pointer

Returns: The node with the specified IP.

Definition at line 545 of file nix-vector-routing.cc.

References NS_LOG_ERROR.

◆ GetIpRouteInCache()

template<typename T >

Ptr< typename NixVectorRouting< T >::IpRoute > ns3::NixVectorRouting< T >::GetIpRouteInCache ( IpAddress address )

private

Checks the cache based on dest IP for the IpRoute.

Parameters

address Address to check

Returns: The cached route.

Definition at line 265 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION, and NS_LOG_LOGIC.

◆ GetNixVector()

template<typename T >

Ptr< NixVector > ns3::NixVectorRouting< T >::GetNixVector	(	Ptr< Node >	source,
		IpAddress	dest,
		Ptr< NetDevice >	oif
	)		const

private

Takes in the source node and dest IP and calls GetNodeByIp, BFS, accounting for any output interface specified, and finally BuildNixVector to return the built nix-vector.

Parameters

source	Source node
dest	Destination node address
oif	Preferred output interface

Returns: The NixVector to be used in routing.

Internal:: Do not process packets to self (see Bug 1308)

Definition at line 191 of file nix-vector-routing.cc.

References ns3::NodeList::GetNNodes(), NS_LOG_DEBUG, NS_LOG_ERROR, and NS_LOG_FUNCTION.

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◆ GetNixVectorInCache()

template<typename T >

Ptr< NixVector > ns3::NixVectorRouting< T >::GetNixVectorInCache	(	const IpAddress &	address,
		bool &	foundInCache
	)		const

private

Checks the cache based on dest IP for the nix-vector.

Parameters

address	Address to check
foundInCache	Address found in cache

Returns: The NixVector to be used in routing.

Definition at line 244 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION, and NS_LOG_LOGIC.

◆ GetNodeByIp()

template<typename T >

Ptr< Node > ns3::NixVectorRouting< T >::GetNodeByIp ( IpAddress dest ) const

private

Iterates through the node list and finds the one corresponding to the given IpAddress.

Parameters

dest	destination node IP

Returns: The node with the specified IP.

Definition at line 516 of file nix-vector-routing.cc.

References NS_LOG_ERROR, and NS_LOG_FUNCTION.

◆ GetTypeId()

template<typename T >

TypeId ns3::NixVectorRouting< T >::GetTypeId

static

The Interface ID of the Global Router interface.

Returns: The Interface ID

See also: Object::GetObject ()

Definition at line 60 of file nix-vector-routing.cc.

References ns3::TypeId::SetParent().

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◆ NetDeviceIsBridged()

template<typename T >

Ptr< BridgeNetDevice > ns3::NixVectorRouting< T >::NetDeviceIsBridged ( Ptr< NetDevice > nd ) const

private

Determine if the NetDevice is bridged.

Parameters

nd	the NetDevice to check

Returns: the bridging NetDevice (or null if the NetDevice is not bridged)

Definition at line 606 of file nix-vector-routing.cc.

References NS_ABORT_MSG_UNLESS, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

◆ NotifyAddAddress()

template<typename T >

void ns3::NixVectorRouting< T >::NotifyAddAddress	(	uint32_t	interface,
		IpInterfaceAddress	address
	)

privatevirtual

Parameters

interface	the index of the interface we are being notified about
address	a new address being added to an interface

See also: Ipv4RoutingProtocol::NotifyAddAddress; Ipv6RoutingProtocol::NotifyAddAddress

Definition at line 1089 of file nix-vector-routing.cc.

◆ NotifyAddRoute()

template<typename T >

void ns3::NixVectorRouting< T >::NotifyAddRoute	(	IpAddress	dst,
		Ipv6Prefix	mask,
		IpAddress	nextHop,
		uint32_t	interface,
		IpAddress	prefixToUse = `IpAddress::GetZero()`
	)

privatevirtual

Notify a new route.

Parameters

dst	destination address
mask	destination mask
nextHop	nextHop for this destination
interface	output interface
prefixToUse	prefix to use as source with this route

See also: Ipv6RoutingProtocol::NotifyAddRoute

Definition at line 1103 of file nix-vector-routing.cc.

◆ NotifyInterfaceDown()

template<typename T >

void ns3::NixVectorRouting< T >::NotifyInterfaceDown ( uint32_t interface )

privatevirtual

Parameters

interface the index of the interface we are being notified about

See also: Ipv4RoutingProtocol::NotifyInterfaceDown; Ipv6RoutingProtocol::NotifyInterfaceDown

Definition at line 1082 of file nix-vector-routing.cc.

◆ NotifyInterfaceUp()

template<typename T >

void ns3::NixVectorRouting< T >::NotifyInterfaceUp ( uint32_t interface )

privatevirtual

Parameters

interface the index of the interface we are being notified about

See also: Ipv4RoutingProtocol::NotifyInterfaceUp; Ipv6RoutingProtocol::NotifyInterfaceUp

Definition at line 1075 of file nix-vector-routing.cc.

◆ NotifyRemoveAddress()

template<typename T >

void ns3::NixVectorRouting< T >::NotifyRemoveAddress	(	uint32_t	interface,
		IpInterfaceAddress	address
	)

privatevirtual

Parameters

interface	the index of the interface we are being notified about
address	a new address being added to an interface

See also: Ipv4RoutingProtocol::NotifyRemoveAddress; Ipv6RoutingProtocol::NotifyRemoveAddress

Definition at line 1096 of file nix-vector-routing.cc.

◆ NotifyRemoveRoute()

template<typename T >

void ns3::NixVectorRouting< T >::NotifyRemoveRoute	(	IpAddress	dst,
		Ipv6Prefix	mask,
		IpAddress	nextHop,
		uint32_t	interface,
		IpAddress	prefixToUse = `IpAddress::GetZero()`
	)

privatevirtual

Notify route removing.

Parameters

dst	destination address
mask	destination mask
nextHop	nextHop for this destination
interface	output interface
prefixToUse	prefix to use as source with this route

See also: Ipv6RoutingProtocol::NotifyRemoveRoute

Definition at line 1114 of file nix-vector-routing.cc.

◆ PrintRoutingPath()

template<typename T >

template void ns3::NixVectorRouting< T >::PrintRoutingPath	(	Ptr< Node >	source,
		IpAddress	dest,
		Ptr< OutputStreamWrapper >	stream,
		Time::Unit	unit
	)		const

Print the Routing Path according to Nix Routing.

Parameters

source	Source node
dest	Destination node address
stream	The ostream the Routing path is printed to
unit	the time unit to be used in the report

Note: IpAddress is alias for either Ipv4Address or Ipv6Address depending on on whether the network is IPv4 or IPv6 respectively.

Definition at line 1287 of file nix-vector-routing.cc.

References ns3::Time::As(), ns3::Now(), NS_LOG_ERROR, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ PrintRoutingTable()

template<typename T >

void ns3::NixVectorRouting< T >::PrintRoutingTable	(	Ptr< OutputStreamWrapper >	stream,
		Time::Unit	unit = `Time::S`
	)		const

privatevirtual

Print the Routing Table entries.

Parameters

stream	The ostream the Routing table is printed to
unit	The time unit to be used in the report

See also: Ipv4RoutingProtocol::PrintRoutingTable; Ipv6RoutingProtocol::PrintRoutingTable

Definition at line 999 of file nix-vector-routing.cc.

References ns3::Time::As(), ns3::Names::FindName(), ns3::Now(), and NS_LOG_FUNCTION_NOARGS.

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◆ ResetTotalNeighbors()

template<typename T >

void ns3::NixVectorRouting< T >::ResetTotalNeighbors ( )

private

Upon a run-time topology change caches are flushed and the total number of neighbors is reset to zero.

◆ RouteInput()

template<typename T >

bool ns3::NixVectorRouting< T >::RouteInput	(	Ptr< const Packet >	p,
		const IpHeader &	header,
		Ptr< const NetDevice >	idev,
		const UnicastForwardCallback &	ucb,
		const MulticastForwardCallback &	mcb,
		const LocalDeliverCallback &	lcb,
		const ErrorCallback &	ecb
	)

privatevirtual

Route an input packet (to be forwarded or locally delivered)

Parameters

p	received packet
header	input parameter used to form a search key for a route
idev	Pointer to ingress network device
ucb	Callback for the case in which the packet is to be forwarded as unicast
mcb	Callback for the case in which the packet is to be forwarded as multicast
lcb	Callback for the case in which the packet is to be locally delivered
ecb	Callback to call if there is an error in forwarding

Returns: true if NixVectorRouting class takes responsibility for forwarding or delivering the packet, false otherwise

See also: Ipv4RoutingProtocol::RouteInput; Ipv6RoutingProtocol::RouteInput

Definition at line 867 of file nix-vector-routing.cc.

References ns3::Socket::ERROR_NOROUTETOHOST, ns3::Callback< R, UArgs >::IsNull(), NS_ASSERT, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ RouteOutput()

template<typename T >

Ptr< typename NixVectorRouting< T >::IpRoute > ns3::NixVectorRouting< T >::RouteOutput	(	Ptr< Packet >	p,
		const IpHeader &	header,
		Ptr< NetDevice >	oif,
		Socket::SocketErrno &	sockerr
	)

privatevirtual

Query routing cache for an existing route, for an outbound packet.

Parameters

p	packet to be routed. Note that this method may modify the packet. Callers may also pass in a null pointer.
header	input parameter (used to form key to search for the route)
oif	Output interface Netdevice. May be zero, or may be bound via socket options to a particular output interface.
sockerr	Output parameter; socket errno

Returns: a code that indicates what happened in the lookup

See also: Ipv4RoutingProtocol::RouteOutput; Ipv6RoutingProtocol::RouteOutput

Definition at line 697 of file nix-vector-routing.cc.

References ns3::Socket::ERROR_NOROUTETOHOST, ns3::Socket::ERROR_NOTERROR, ns3::Ipv6Address::GetZero(), NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_ERROR, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ SetIpv4()

template<typename T >

void ns3::NixVectorRouting< T >::SetIpv4 ( Ptr< Ip > ipv4 )

privatevirtual

Typically, invoked directly or indirectly from ns3::Ipv4::SetRoutingProtocol.

Parameters

ipv4	the ipv4 object this routing protocol is being associated with

See also: Ipv4RoutingProtocol::SetIpv4

Definition at line 93 of file nix-vector-routing.cc.

References NS_ASSERT, and NS_LOG_DEBUG.

◆ SetIpv6()

template<typename T >

void ns3::NixVectorRouting< T >::SetIpv6 ( Ptr< Ip > ipv6 )

privatevirtual

Typically, invoked directly or indirectly from ns3::Ipv6::SetRoutingProtocol.

Parameters

ipv6	the ipv6 object this routing protocol is being associated with

See also: Ipv6RoutingProtocol::SetIpv6

Definition at line 104 of file nix-vector-routing.cc.

References NS_ASSERT, and NS_LOG_DEBUG.

◆ SetNode()

template<typename T >

template void ns3::NixVectorRouting< T >::SetNode ( Ptr< Node > node )

Set the Node pointer of the node for which this routing protocol is to be placed.

Parameters

node	Node pointer

Definition at line 141 of file nix-vector-routing.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Data Documentation

◆ g_epoch

template<typename T >

uint32_t ns3::NixVectorRouting< T >::g_epoch = 1

staticprivate

Nix Epoch, incremented each time a flush is performed.

Definition at line 492 of file nix-vector-routing.h.

◆ g_ipAddressToNodeMap

template<typename T >

NixVectorRouting< T >::IpAddressToNodeMap ns3::NixVectorRouting< T >::g_ipAddressToNodeMap

staticprivate

Address to node map.

Definition at line 514 of file nix-vector-routing.h.

◆ g_isCacheDirty

template<typename T >

bool ns3::NixVectorRouting< T >::g_isCacheDirty = false

staticprivate

Flag to mark when caches are dirty and need to be flushed.

Used for lazy cleanup of caches when there are many topology changes.

Definition at line 487 of file nix-vector-routing.h.

◆ g_netdeviceToIpInterfaceMap

template<typename T >

NixVectorRouting< T >::NetDeviceToIpInterfaceMap ns3::NixVectorRouting< T >::g_netdeviceToIpInterfaceMap

staticprivate

NetDevice pointer to IpInterface pointer map.

Definition at line 519 of file nix-vector-routing.h.

◆ IsIpv4

template<typename T >

constexpr bool ns3::NixVectorRouting< T >::IsIpv4 = std::is_same_v<Ipv4RoutingProtocol, T>

staticconstexprprivate

Alias for determining whether the parent is Ipv4RoutingProtocol or Ipv6RoutingProtocol.

Definition at line 74 of file nix-vector-routing.h.

◆ m_ip

template<typename T >

Ptr<Ip> ns3::NixVectorRouting< T >::m_ip

private

IP object.

Definition at line 500 of file nix-vector-routing.h.

◆ m_ipRouteCache

template<typename T >

IpRouteMap_t ns3::NixVectorRouting< T >::m_ipRouteCache

mutableprivate

Cache stores IpRoutes based on destination ip.

Definition at line 498 of file nix-vector-routing.h.

◆ m_nixCache

template<typename T >

NixMap_t ns3::NixVectorRouting< T >::m_nixCache

mutableprivate

Cache stores nix-vectors based on destination ip.

Definition at line 495 of file nix-vector-routing.h.

◆ m_node

template<typename T >

Ptr<Node> ns3::NixVectorRouting< T >::m_node

private

Node object.

Definition at line 501 of file nix-vector-routing.h.

◆ m_totalNeighbors

template<typename T >

uint32_t ns3::NixVectorRouting< T >::m_totalNeighbors

private

Total neighbors used for nix-vector to determine number of bits.

Definition at line 504 of file nix-vector-routing.h.

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

src/nix-vector-routing/model/nix-vector-routing.h
src/nix-vector-routing/model/nix-vector-routing.cc

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

◆ ErrorCallback

◆ Ip

◆ IpAddress

◆ IpAddressHash

◆ IpAddressToNodeMap

◆ IpHeader

◆ IpInterface

◆ IpInterfaceAddress

◆ IpL3Protocol

◆ IpRoute

◆ IpRouteMap_t

◆ LocalDeliverCallback

◆ MulticastForwardCallback

◆ MulticastForwardCallbackv4

◆ MulticastForwardCallbackv6

◆ NetDeviceToIpInterfaceMap

◆ NixMap_t

◆ UnicastForwardCallback

◆ UnicastForwardCallbackv4

◆ UnicastForwardCallbackv6

Constructor & Destructor Documentation

◆ NixVectorRouting()

◆ ~NixVectorRouting()

Member Function Documentation

◆ BFS()

◆ BuildIpAddressToNodeMap()

◆ BuildNixVector()

◆ CheckCacheStateAndFlush()

◆ DoDispose()

◆ DoInitialize()

◆ FindNetDeviceForNixIndex()

◆ FindTotalNeighbors()

◆ FlushGlobalNixRoutingCache()

◆ FlushIpRouteCache()

◆ FlushNixCache()

◆ GetAdjacentNetDevices()

◆ GetInterfaceByNetDevice()

◆ GetIpRouteInCache()

◆ GetNixVector()

◆ GetNixVectorInCache()

◆ GetNodeByIp()

◆ GetTypeId()

◆ NetDeviceIsBridged()

◆ NotifyAddAddress()

◆ NotifyAddRoute()

◆ NotifyInterfaceDown()

◆ NotifyInterfaceUp()

◆ NotifyRemoveAddress()

◆ NotifyRemoveRoute()

◆ PrintRoutingPath()

◆ PrintRoutingTable()

◆ ResetTotalNeighbors()

◆ RouteInput()

◆ RouteOutput()

◆ SetIpv4()

◆ SetIpv6()

◆ SetNode()

Member Data Documentation

◆ g_epoch

◆ g_ipAddressToNodeMap

◆ g_isCacheDirty

◆ g_netdeviceToIpInterfaceMap

◆ IsIpv4

◆ m_ip

◆ m_ipRouteCache

◆ m_nixCache

◆ m_node

◆ m_totalNeighbors