ns3::aodv::DuplicatePacketDetection Class Reference

Helper class used to remember already seen packets and detect duplicates. More...

#include "aodv-dpd.h"

Public Member Functions
	DuplicatePacketDetection (Time lifetime)
	Constructor. More...
Time	GetLifetime () const
	Get duplicate record lifetime. More...
bool	IsDuplicate (Ptr< const Packet > p, const Ipv4Header &header)
	Check if the packet is a duplicate. More...
void	SetLifetime (Time lifetime)
	Set duplicate record lifetime. More...

Private Attributes
IdCache	m_idCache
	Impl. More...

Detailed Description

Helper class used to remember already seen packets and detect duplicates.

Currently duplicate detection is based on unique packet ID given by Packet::GetUid () This approach is known to be weak (ns3::Packet UID is an internal identifier and not intended for logical uniqueness in models) and should be changed.

Definition at line 41 of file aodv-dpd.h.

Constructor & Destructor Documentation

DuplicatePacketDetection()

ns3::aodv::DuplicatePacketDetection::DuplicatePacketDetection ( Time  lifetime )

inline

Constructor.

Parameters

lifetime

the lifetime for added entries

Definition at line 48 of file aodv-dpd.h.

Member Function Documentation

GetLifetime()

Time ns3::aodv::DuplicatePacketDetection::GetLifetime

(

)

const

Get duplicate record lifetime.

Returns

the duplicate record lifetime

Definition at line 40 of file aodv-dpd.cc.

References ns3::aodv::IdCache::GetLifeTime(), and m_idCache.

IsDuplicate()

bool ns3::aodv::DuplicatePacketDetection::IsDuplicate	(	Ptr< const Packet >	p,
		const Ipv4Header &	header
	)

Check if the packet is a duplicate.

If not, save information about this packet.

Parameters

p	the packet to check
header	the IP header to check

Returns

true if duplicate

Definition at line 29 of file aodv-dpd.cc.

References ns3::Ipv4Header::GetSource(), ns3::Packet::GetUid(), ns3::aodv::IdCache::IsDuplicate(), and m_idCache.

Referenced by ns3::aodv::RoutingProtocol::RouteInput().

SetLifetime()

void ns3::aodv::DuplicatePacketDetection::SetLifetime

(

Time

lifetime

)

Set duplicate record lifetime.

Parameters

lifetime

the lifetime for duplicate records

Definition at line 34 of file aodv-dpd.cc.

References m_idCache, and ns3::aodv::IdCache::SetLifetime().

Member Data Documentation

m_idCache

IdCache ns3::aodv::DuplicatePacketDetection::m_idCache

private

Impl.

Definition at line 70 of file aodv-dpd.h.

Referenced by GetLifetime(), IsDuplicate(), and SetLifetime().

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

• src/aodv/model/aodv-dpd.h
• src/aodv/model/aodv-dpd.cc