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/*
* Copyright (c) 2015 Universita' degli Studi di Napoli "Federico II"
* 2017 Kungliga Tekniska Högskolan
*
* SPDX-License-Identifier: GPL-2.0-only
*
* Author: Pasquale Imputato <p.imputato@gmail.com>
* Author: Stefano Avallone <stefano.avallone@unina.it>
* Author: Surya Seetharaman <suryaseetharaman.9@gmail.com> - ported from ns-3
* RedQueueDisc traffic-control example to accommodate TbfQueueDisc example.
*/
#include "ns3/applications-module.h"
#include "ns3/core-module.h"
#include "ns3/internet-module.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/traffic-control-module.h"
// This simple example shows how to use TrafficControlHelper to install a
// QueueDisc on a device.
//
// Network topology
//
// 10.1.1.0
// n0 -------------- n1
// point-to-point
//
// The output will consist of all the traced changes in
// the number of tokens in TBF's first and second buckets:
//
// FirstBucketTokens 0 to x
// SecondBucketTokens 0 to x
// FirstBucketTokens x to 0
// SecondBucketTokens x to 0
//
using namespace ns3;
NS_LOG_COMPONENT_DEFINE("TbfExample");
void
FirstBucketTokensTrace(uint32_t oldValue, uint32_t newValue)
{
std::cout << "FirstBucketTokens " << oldValue << " to " << newValue << std::endl;
}
void
SecondBucketTokensTrace(uint32_t oldValue, uint32_t newValue)
{
std::cout << "SecondBucketTokens " << oldValue << " to " << newValue << std::endl;
}
int
main(int argc, char* argv[])
{
double simulationTime = 10; // seconds
uint32_t burst = 10000;
uint32_t mtu = 0;
DataRate rate = DataRate("1Mbps");
DataRate peakRate = DataRate("0bps");
CommandLine cmd(__FILE__);
cmd.AddValue("burst", "Size of first bucket in bytes", burst);
cmd.AddValue("mtu", "Size of second bucket in bytes", mtu);
cmd.AddValue("rate", "Rate of tokens arriving in first bucket", rate);
cmd.AddValue("peakRate", "Rate of tokens arriving in second bucket", peakRate);
cmd.Parse(argc, argv);
NodeContainer nodes;
nodes.Create(2);
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute("DataRate", StringValue("2Mb/s"));
pointToPoint.SetChannelAttribute("Delay", StringValue("0ms"));
NetDeviceContainer devices;
devices = pointToPoint.Install(nodes);
InternetStackHelper stack;
stack.Install(nodes);
TrafficControlHelper tch;
tch.SetRootQueueDisc("ns3::TbfQueueDisc",
"Burst",
UintegerValue(burst),
"Mtu",
UintegerValue(mtu),
"Rate",
DataRateValue(DataRate(rate)),
"PeakRate",
DataRateValue(DataRate(peakRate)));
QueueDiscContainer qdiscs = tch.Install(devices);
Ptr<QueueDisc> q = qdiscs.Get(1);
q->TraceConnectWithoutContext("TokensInFirstBucket", MakeCallback(&FirstBucketTokensTrace));
q->TraceConnectWithoutContext("TokensInSecondBucket", MakeCallback(&SecondBucketTokensTrace));
Ipv4AddressHelper address;
address.SetBase("10.1.1.0", "255.255.255.0");
Ipv4InterfaceContainer interfaces = address.Assign(devices);
// Flow
uint16_t port = 7;
Address localAddress(InetSocketAddress(Ipv4Address::GetAny(), port));
PacketSinkHelper packetSinkHelper("ns3::TcpSocketFactory", localAddress);
ApplicationContainer sinkApp = packetSinkHelper.Install(nodes.Get(0));
sinkApp.Start(Seconds(0));
sinkApp.Stop(Seconds(simulationTime + 0.1));
uint32_t payloadSize = 1448;
Config::SetDefault("ns3::TcpSocket::SegmentSize", UintegerValue(payloadSize));
OnOffHelper onoff("ns3::TcpSocketFactory", Ipv4Address::GetAny());
onoff.SetAttribute("OnTime", StringValue("ns3::ConstantRandomVariable[Constant=1]"));
onoff.SetAttribute("OffTime", StringValue("ns3::ConstantRandomVariable[Constant=0.2]"));
onoff.SetAttribute("PacketSize", UintegerValue(payloadSize));
onoff.SetAttribute("DataRate", StringValue("1.1Mb/s")); // bit/s
ApplicationContainer apps;
InetSocketAddress rmt(interfaces.GetAddress(0), port);
onoff.SetAttribute("Remote", AddressValue(rmt));
onoff.SetAttribute("Tos", UintegerValue(0xb8));
apps.Add(onoff.Install(nodes.Get(1)));
apps.Start(Seconds(1));
apps.Stop(Seconds(simulationTime + 0.1));
Simulator::Stop(Seconds(simulationTime + 5));
Simulator::Run();
Simulator::Destroy();
std::cout << std::endl << "*** TC Layer statistics ***" << std::endl;
std::cout << q->GetStats() << std::endl;
return 0;
}
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