A single link record for a link state advertisement. More...

#include <global-router-interface.h>

Collaboration diagram for ns3::GlobalRoutingLinkRecord:

Public Types
enum	LinkType { Unknown = 0, PointToPoint, TransitNetwork, StubNetwork, VirtualLink }
	Enumeration of the possible types of Global Routing Link Records. More...
Public Member Functions
	GlobalRoutingLinkRecord ()
	Construct an empty ("uninitialized") Global Routing Link Record.
	GlobalRoutingLinkRecord (LinkType linkType, Ipv4Address linkId, Ipv4Address linkData, uint16_t metric)
	~GlobalRoutingLinkRecord ()
	Destroy a Global Routing Link Record.
Ipv4Address	GetLinkId (void) const
void	SetLinkId (Ipv4Address addr)
	Set the Link ID field of the Global Routing Link Record.
Ipv4Address	GetLinkData (void) const
	Get the Link Data field of the Global Routing Link Record.
void	SetLinkData (Ipv4Address addr)
	Set the Link Data field of the Global Routing Link Record.
LinkType	GetLinkType (void) const
	Get the Link Type field of the Global Routing Link Record.
void	SetLinkType (LinkType linkType)
	Set the Link Type field of the Global Routing Link Record.
uint16_t	GetMetric (void) const
	Get the Metric Data field of the Global Routing Link Record.
void	SetMetric (uint16_t metric)
	Set the Metric Data field of the Global Routing Link Record.
Friends
class	GlobalRoutingLSA

Detailed Description

A single link record for a link state advertisement.

The GlobalRoutingLinkRecord is modeled after the OSPF link record field of a Link State Advertisement. Right now we will only see two types of link records corresponding to a stub network and a point-to-point link (channel).

Member Enumeration Documentation

enum ns3::GlobalRoutingLinkRecord::LinkType

Enumeration of the possible types of Global Routing Link Records.

These values are defined in the OSPF spec. We currently only use PointToPoint and StubNetwork types.

Enumerator:

Unknown	Uninitialized Link Record
PointToPoint	Record representing a point to point channel
TransitNetwork	Unused -- for future OSPF compatibility
StubNetwork	Record represents a leaf node network
VirtualLink	Unused -- for future OSPF compatibility

Constructor & Destructor Documentation

ns3::GlobalRoutingLinkRecord::GlobalRoutingLinkRecord ( )

Construct an empty ("uninitialized") Global Routing Link Record.

The Link ID and Link Data Ipv4 addresses are set to "0.0.0.0"; The Link Type is set to Unknown; The metric is set to 0.

ns3::GlobalRoutingLinkRecord::GlobalRoutingLinkRecord	(	LinkType	linkType,
		Ipv4Address	linkId,
		Ipv4Address	linkData,
		uint16_t	metric
	)

Construct an initialized Global Routing Link Record.

Parameters:

	linkType	The type of link record to construct.
	linkId	The link ID for the record.
	linkData	The link data field for the record.
	metric	The metric field for the record.

See also:: LinkType; SetLinkId; SetLinkData

ns3::GlobalRoutingLinkRecord::~GlobalRoutingLinkRecord ( )

Destroy a Global Routing Link Record.

Currently does nothing. Here as a placeholder only.

Member Function Documentation

Ipv4Address ns3::GlobalRoutingLinkRecord::GetLinkData ( void ) const

Get the Link Data field of the Global Routing Link Record.

For an OSPF type 1 link (PointToPoint) the Link Data will be the IP address of the node of the local side of the link.

For an OSPF type 3 link (StubNetwork), the Link Data will be the network mask

Returns:: The Ipv4Address corresponding to the Link Data field of the record.

Ipv4Address ns3::GlobalRoutingLinkRecord::GetLinkId ( void ) const

Get the Link ID field of the Global Routing Link Record.

For an OSPF type 1 link (PointToPoint) the Link ID will be the Router ID of the neighboring router.

For an OSPF type 3 link (StubNetwork), the Link ID will be the adjacent neighbor's IP address

Returns:: The Ipv4Address corresponding to the Link ID field of the record.

LinkType ns3::GlobalRoutingLinkRecord::GetLinkType ( void ) const

Get the Link Type field of the Global Routing Link Record.

The Link Type describes the kind of link a given record represents. The values are defined by OSPF.

See also:: LinkType

Returns:: The LinkType of the current Global Routing Link Record.

uint16_t ns3::GlobalRoutingLinkRecord::GetMetric ( void ) const

Get the Metric Data field of the Global Routing Link Record.

The metric is an abstract cost associated with forwarding a packet across a link. A sum of metrics must have a well-defined meaning. That is, you shouldn't use bandwidth as a metric (how does the sum of the bandwidth of two hops relate to the cost of sending a packet); rather you should use something like delay.

Returns:: The metric field of the Global Routing Link Record.

void ns3::GlobalRoutingLinkRecord::SetLinkData ( Ipv4Address addr )

Set the Link Data field of the Global Routing Link Record.

For an OSPF type 1 link (PointToPoint) the Link Data must be the IP address of the node of the local side of the link.

For an OSPF type 3 link (StubNetwork), the Link Data must be set to the network mask

Parameters:

addr

An Ipv4Address to store in the Link Data field of the record.

void ns3::GlobalRoutingLinkRecord::SetLinkId ( Ipv4Address addr )

Set the Link ID field of the Global Routing Link Record.

For an OSPF type 1 link (PointToPoint) the Link ID must be the Router ID of the neighboring router.

For an OSPF type 3 link (StubNetwork), the Link ID must be the adjacent neighbor's IP address

Parameters:

addr

An Ipv4Address to store in the Link ID field of the record.

void ns3::GlobalRoutingLinkRecord::SetLinkType ( LinkType linkType )

Set the Link Type field of the Global Routing Link Record.

The Link Type describes the kind of link a given record represents. The values are defined by OSPF.

See also:: LinkType

Parameters:

linkType

The new LinkType for the current Global Routing Link Record.

void ns3::GlobalRoutingLinkRecord::SetMetric ( uint16_t metric )

Set the Metric Data field of the Global Routing Link Record.

The metric is an abstract cost associated with forwarding a packet across a link. A sum of metrics must have a well-defined meaning. That is, you shouldn't use bandwidth as a metric (how does the sum of the bandwidth of two hops relate to the cost of sending a packet); rather you should use something like delay.

Parameters:

metric

The new metric for the current Global Routing Link Record.

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

src/routing/global-routing/global-router-interface.h

ns3::GlobalRoutingLinkRecord Class Reference

Public Types

Public Member Functions

Friends

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation