Package: inet.routing.dsdv

Dsdv

simple module

Implements Destination-Sequenced Distance Vector.

The host using this routing algoritm is required to have a SINGLE interface which has "wlan" in its name.

NOTE:

This is a fairly incomplete implementation of the originally published DSDV algorithm. It does not implement full routing table dumps, hello message forwarding, there is no logic that sends out full updates if the size of the incremental update reaches the network unit size.

WARNING: This is a partial / unfinished implementation.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Used in compound modules

Name	Type	Description
DsdvRouter	compound module	A DSDV router.

Parameters

Name	Type	Default value	Description
interfaceTableModule	string		The path to the InterfaceTable module
routingTableModule	string
helloInterval	double	5s	how often hello messages should be sent out
netmask	string	"255.255.0.0"	netmask for the ad-hoc network
maxVariance	double	1	This is the maximum of a random value to determine when the first hello message will be sent out
routeLifetime	double	5s	the expiry time of the routing entries
manetPurgeRoutingTables	bool	true
broadcastDelay	double	uniform(0s,0.01s)

Properties

Name	Value	Description
display	i=block/routing

Gates

Name	Direction	Size	Description
ipIn	input
ipOut	output

Scheduled messages (observed)

msg	kind	ctrl	tags	msgname	context
omnetpp::cMessage	0			event

Direct method calls (observed)

call to	function	info
MessageDispatcher	inet::MessageDispatcher::arrived	arrived
MessageDispatcher	inet::MessageDispatcher::handleRegisterProtocol	handleRegisterProtocol
InterfaceTable	inet::InterfaceTable::interfaceChanged	interfaceChanged
Igmpv2	inet::Igmpv2::receiveSignal	ipv4MulticastGroupJoined
Ipv4RoutingTable	inet::Ipv4RoutingTable::addRoute	addRoute(...)
Ipv4RoutingTable	inet::Ipv4RoutingTable::deleteRoute	deleteRoute(...)
Ipv4RoutingTable	inet::Ipv4RoutingTable::findBestMatchingRoute	findBestMatchingRoute(%u.%u.%u.%u)

Called methods (observed)

function	info	call from
inet::Dsdv::handleOperationStage	handleOperationStage	ScenarioManager

Incoming messages (observed)

gate	msg	kind	ctrl	srcModule	tags
ipIn	Packet	0		Ipv4	DispatchProtocolReq, DscpInd, EcnInd, ErrorRateInd, HopLimitInd, Ieee802SapInd, InterfaceInd, L3AddressInd, MacAddressInd, NetworkProtocolInd, PacketProtocolTag, SignalPowerInd, SignalTimeInd, SnirInd, TosInd, Ieee80211ChannelInd, Ieee80211ModeInd

Outgoing messages (observed)

gate	msg	kind	ctrl	destModule	tags
ipOut	Packet	0		Ipv4	DispatchProtocolReq, InterfaceReq, L3AddressReq, PacketProtocolTag

Packet operations (observed)

chunkType	packetAction
DsdvHello	Packet, insertAtBack, peekData

Shared Tagging operations (observed)

tagType	tagAction
DispatchProtocolReq	addTag
InterfaceReq	addTag
L3AddressReq	addTag
PacketProtocolTag	addTag, getTag

Tagging operations (observed)

tagType	tagAction
inet::Ipv4InterfaceData	getTag, getTagForUpdate

Source code

//
// Implements Destination-Sequenced Distance Vector.
//
// The host using this routing algoritm is required to have a SINGLE interface
// which has "wlan" in its name.
//
// NOTE:
//  - This is a fairly incomplete implementation of the originally published DSDV
//    algorithm. It does not implement full routing table dumps, hello message forwarding,
//    there is no logic that sends out full updates if the size of the incremental update reaches
//    the network unit size.
//
// WARNING: This is a partial / unfinished implementation.
//
simple Dsdv like IManetRouting
{
    parameters:
        @display("i=block/routing");
        string interfaceTableModule;   // The path to the InterfaceTable module
        string routingTableModule;
        double helloInterval @unit(s) = default(5s);  // how often hello messages should be sent out
        string netmask = default("255.255.0.0");  // netmask for the ad-hoc network
        double maxVariance = default(1); // This is the maximum of a random value to determine when the first hello message will be sent out
        double routeLifetime @unit(s) = default(5s);  // the expiry time of the routing entries
        bool manetPurgeRoutingTables = default(true);
        volatile double broadcastDelay @unit(s) = default(uniform(0s,0.01s));
    gates:
        input ipIn;
        output ipOut;
}

File: src/inet/routing/dsdv/Dsdv.ned