22 #include "ns3/core-module.h"
23 #include "ns3/network-module.h"
24 #include "ns3/internet-module.h"
25 #include "ns3/point-to-point-module.h"
26 #include "ns3/applications-module.h"
27 #include "ns3/point-to-point-layout-module.h"
28 #include "ns3/traffic-control-module.h"
36 int main (
int argc,
char *argv[])
39 uint32_t maxPackets = 100;
40 bool modeBytes =
false;
41 uint32_t queueDiscLimitPackets = 1000;
44 uint32_t pktSize = 512;
45 std::string appDataRate =
"10Mbps";
46 std::string queueDiscType =
"RED";
48 std::string bottleNeckLinkBw =
"1Mbps";
49 std::string bottleNeckLinkDelay =
"50ms";
52 cmd.
AddValue (
"nLeaf",
"Number of left and right side leaf nodes", nLeaf);
53 cmd.
AddValue (
"maxPackets",
"Max Packets allowed in the device queue", maxPackets);
54 cmd.
AddValue (
"queueDiscLimitPackets",
"Max Packets allowed in the queue disc", queueDiscLimitPackets);
55 cmd.
AddValue (
"queueDiscType",
"Set Queue disc type to RED or ARED", queueDiscType);
56 cmd.
AddValue (
"appPktSize",
"Set OnOff App Packet Size", pktSize);
57 cmd.
AddValue (
"appDataRate",
"Set OnOff App DataRate", appDataRate);
58 cmd.
AddValue (
"modeBytes",
"Set Queue disc mode to Packets <false> or bytes <true>", modeBytes);
60 cmd.
AddValue (
"redMinTh",
"RED queue minimum threshold", minTh);
61 cmd.
AddValue (
"redMaxTh",
"RED queue maximum threshold", maxTh);
62 cmd.
Parse (argc,argv);
64 if ((queueDiscType !=
"RED") && (queueDiscType !=
"ARED"))
66 std::cout <<
"Invalid queue disc type: Use --queueDiscType=RED or --queueDiscType=ARED" << std::endl;
95 if (queueDiscType ==
"ARED")
112 nLeaf, pointToPointLeaf,
117 for (uint32_t i = 0; i < d.LeftCount (); ++i)
121 for (uint32_t i = 0; i < d.RightCount (); ++i)
123 stack.
Install (d.GetRight (i));
131 tchBottleneck.
Install (d.GetLeft ()->GetDevice (0));
132 queueDiscs = tchBottleneck.
Install (d.GetRight ()->GetDevice (0));
141 clientHelper.SetAttribute (
"OnTime",
StringValue (
"ns3::UniformRandomVariable[Min=0.|Max=1.]"));
142 clientHelper.SetAttribute (
"OffTime",
StringValue (
"ns3::UniformRandomVariable[Min=0.|Max=1.]"));
144 PacketSinkHelper packetSinkHelper (
"ns3::TcpSocketFactory", sinkLocalAddress);
146 for (uint32_t i = 0; i < d.LeftCount (); ++i)
148 sinkApps.
Add (packetSinkHelper.Install (d.GetLeft (i)));
154 for (uint32_t i = 0; i < d.RightCount (); ++i)
158 clientHelper.SetAttribute (
"Remote", remoteAddress);
159 clientApps.
Add (clientHelper.Install (d.GetRight (i)));
166 std::cout <<
"Running the simulation" << std::endl;
171 if (queueDiscType ==
"RED")
175 std::cout <<
"Drops due to prob mark should be less than the drops due to hard mark" << std::endl;
181 std::cout <<
"There should be zero drops due to queue full" << std::endl;
185 else if (queueDiscType ==
"ARED")
189 std::cout <<
"Drops due to prob mark should be more than the drops due to hard mark" << std::endl;
195 std::cout <<
"There should be zero drops due to queue full" << std::endl;
200 std::cout <<
"*** Stats from the bottleneck queue disc ***" << std::endl;
201 std::cout <<
"\t " << st.
unforcedDrop <<
" drops due to prob mark" << std::endl;
202 std::cout <<
"\t " << st.
forcedDrop <<
" drops due to hard mark" << std::endl;
203 std::cout <<
"\t " << st.
qLimDrop <<
" drops due to queue full" << std::endl;
204 std::cout <<
"Destroying the simulation" << std::endl;
holds a vector of ns3::Application pointers.
static Ipv4Address GetAny(void)
AttributeValue implementation for Boolean.
QueueDiscContainer Install(NetDeviceContainer c)
static void PopulateRoutingTables(void)
Build a routing database and initialize the routing tables of the nodes in the simulation.
Hold variables of type string.
void Add(ApplicationContainer other)
Append the contents of another ApplicationContainer to the end of this container. ...
static void Run(void)
Run the simulation.
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes...
Build a set of PointToPointNetDevice objects.
void SetDeviceAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each NetDevice created by the helper.
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
a polymophic address class
Holds a vector of ns3::QueueDisc pointers.
Ptr< QueueDisc > Get(uint32_t i) const
Get the Ptr stored in this container at a given index.
uint32_t forcedDrop
Forced drops, qavg > max threshold.
Hold an unsigned integer type.
uint32_t qLimDrop
Drops due to queue limits.
Build a set of QueueDisc objects.
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter...
Parse command-line arguments.
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Every class exported by the ns3 library is enclosed in the ns3 namespace.
uint16_t SetRootQueueDisc(std::string type, std::string n01="", const AttributeValue &v01=EmptyAttributeValue(), std::string n02="", const AttributeValue &v02=EmptyAttributeValue(), std::string n03="", const AttributeValue &v03=EmptyAttributeValue(), std::string n04="", const AttributeValue &v04=EmptyAttributeValue(), std::string n05="", const AttributeValue &v05=EmptyAttributeValue(), std::string n06="", const AttributeValue &v06=EmptyAttributeValue(), std::string n07="", const AttributeValue &v07=EmptyAttributeValue(), std::string n08="", const AttributeValue &v08=EmptyAttributeValue(), std::string n09="", const AttributeValue &v09=EmptyAttributeValue(), std::string n10="", const AttributeValue &v10=EmptyAttributeValue(), std::string n11="", const AttributeValue &v11=EmptyAttributeValue(), std::string n12="", const AttributeValue &v12=EmptyAttributeValue(), std::string n13="", const AttributeValue &v13=EmptyAttributeValue(), std::string n14="", const AttributeValue &v14=EmptyAttributeValue(), std::string n15="", const AttributeValue &v15=EmptyAttributeValue())
Helper function used to set a root queue disc of the given type and with the given attributes...
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
void SetChannelAttribute(std::string name, const AttributeValue &value)
Set an attribute value to be propagated to each Channel created by the helper.
AttributeValue implementation for Address.
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter...
void AddValue(const std::string &name, const std::string &help, T &value)
Add a program argument, assigning to POD.
Time Seconds(double value)
Construct a Time in the indicated unit.
void SetDefault(std::string name, const AttributeValue &value)
A helper to make it easier to create a dumbbell topology with p2p links.
void Parse(int argc, char *argv[])
Parse the program arguments.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
This class can be used to hold variables of floating point type such as 'double' or 'float'...
uint32_t unforcedDrop
Early probability drops.