5G-LENA: ns3::NrEpcPgwApplication Class Reference

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#include "nr-epc-pgw-application.h"

Inheritance diagram for ns3::NrEpcPgwApplication:

Collaboration diagram for ns3::NrEpcPgwApplication:

Public Types
typedef void(*	RxTracedCallback) (Ptr< Packet > packet)

Public Member Functions
	NrEpcPgwApplication (const Ptr< VirtualNetDevice > tunDevice, Ipv4Address s5Addr, const Ptr< Socket > s5uSocket, const Ptr< Socket > s5cSocket)

	~NrEpcPgwApplication () override

void	AddSgw (Ipv4Address sgwS5Addr)

void	AddUe (uint64_t imsi)

void	DoDispose () override

void	RecvFromS5cSocket (Ptr< Socket > socket)

void	RecvFromS5uSocket (Ptr< Socket > socket)

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

void	SendToS5uSocket (Ptr< Packet > packet, Ipv4Address sgwS5uAddress, uint32_t teid)

void	SendToTunDevice (Ptr< Packet > packet, uint32_t teid)

void	SetUeAddress (uint64_t imsi, Ipv4Address ueAddr)

void	SetUeAddress6 (uint64_t imsi, Ipv6Address ueAddr)

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

Detailed Description

This application implements the Packet Data Network (PDN) Gateway Entity (PGW) according to the 3GPP TS 23.401 document.

This Application implements the PGW side of the S5 interface between the PGW node and the SGW nodes and the PGW side of the SGi interface between the PGW node and the internet hosts. It supports the following functions and messages:

S5 connectivity (i.e. GTPv2-C signalling and GTP-U data plane)
Bearer management functions including dedicated bearer establishment
Per-user based packet filtering
UL and DL bearer binding
Tunnel Management messages

Others functions enumerated in section 4.4.3.3 of 3GPP TS 23.401 are not supported.

Definition at line 39 of file nr-epc-pgw-application.h.

Member Typedef Documentation

◆ RxTracedCallback

typedef void(* ns3::NrEpcPgwApplication::RxTracedCallback) (Ptr< Packet > packet)

TracedCallback signature for data Packet reception event.

Parameters

[in] packet The data packet sent from the internet.

Definition at line 153 of file nr-epc-pgw-application.h.

Constructor & Destructor Documentation

◆ NrEpcPgwApplication()

ns3::NrEpcPgwApplication::NrEpcPgwApplication	(	const Ptr< VirtualNetDevice >	tunDevice,
		Ipv4Address	s5Addr,
		const Ptr< Socket >	s5uSocket,
		const Ptr< Socket >	s5cSocket
	)

Constructor that binds the tap device to the callback methods.

Parameters

tunDevice	TUN VirtualNetDevice used to tunnel IP packets from the SGi interface of the PGW in the internet over GTP-U/UDP/IP on the S5 interface
s5Addr	IP address of the PGW S5 interface
s5uSocket	socket used to send GTP-U packets to the peer SGW
s5cSocket	socket used to send GTP-C packets to the peer SGW

Definition at line 131 of file nr-epc-pgw-application.cc.

References RecvFromS5cSocket(), and RecvFromS5uSocket().

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◆ ~NrEpcPgwApplication()

ns3::NrEpcPgwApplication::~NrEpcPgwApplication ( )

override

Destructor

Definition at line 147 of file nr-epc-pgw-application.cc.

Member Function Documentation

◆ AddSgw()

void ns3::NrEpcPgwApplication::AddSgw ( Ipv4Address sgwS5Addr )

Let the PGW be aware of a new SGW

Parameters

sgwS5Addr the address of the SGW S5 interface

Definition at line 470 of file nr-epc-pgw-application.cc.

◆ AddUe()

void ns3::NrEpcPgwApplication::AddUe ( uint64_t imsi )

Let the PGW be aware of a new UE

Parameters

imsi	the unique identifier of the UE

Definition at line 477 of file nr-epc-pgw-application.cc.

◆ DoDispose()

void ns3::NrEpcPgwApplication::DoDispose ( )

override

Definition at line 122 of file nr-epc-pgw-application.cc.

◆ GetTypeId()

TypeId ns3::NrEpcPgwApplication::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 104 of file nr-epc-pgw-application.cc.

◆ RecvFromS5cSocket()

void ns3::NrEpcPgwApplication::RecvFromS5cSocket ( Ptr< Socket > socket )

Method to be assigned to the receiver callback of the S5-C socket. It is called when the PGW receives a control packet from the SGW.

Parameters

socket pointer to the S5-C socket

Definition at line 244 of file nr-epc-pgw-application.cc.

References ns3::NrGtpcHeader::GetMessageType().

Referenced by NrEpcPgwApplication().

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◆ RecvFromS5uSocket()

void ns3::NrEpcPgwApplication::RecvFromS5uSocket ( Ptr< Socket > socket )

Method to be assigned to the receiver callback of the S5-U socket. It is called when the PGW receives a data packet from the SGW that is to be forwarded to the internet.

Parameters

socket pointer to the S5-U socket

Definition at line 229 of file nr-epc-pgw-application.cc.

References ns3::NrGtpuHeader::GetTeid(), and SendToTunDevice().

Referenced by NrEpcPgwApplication().

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◆ RecvFromTunDevice()

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

Method to be assigned to the callback of the SGi TUN VirtualNetDevice. It is called when the PGW receives a data packet from the internet (including IP headers) that is to be sent to the UE via its associated SGW and gNB, tunneling IP over GTP-U/UDP/IP.

Parameters