375 lines
15 KiB
C++
375 lines
15 KiB
C++
/*
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* Copyright (c) 2015 Universita' degli Studi di Napoli Federico II
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors: Pasquale Imputato <p.imputato@gmail.com>
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* Stefano Avallone <stefano.avallone@unina.it>
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*/
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// This example serves as a benchmark for all the queue discs (with BQL enabled or not)
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//
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// Network topology
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//
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// 192.168.1.0 192.168.2.0
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// n1 ------------------------------------ n2 ----------------------------------- n3
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// point-to-point (access link) point-to-point (bottleneck link)
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// 100 Mbps, 0.1 ms bandwidth [10 Mbps], delay [5 ms]
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// qdiscs PfifoFast with capacity qdiscs queueDiscType in {PfifoFast, ARED, CoDel,
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// FqCoDel, PIE} [PfifoFast] of 1000 packets with capacity of
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// queueDiscSize packets [1000] netdevices queues with size of 100 packets netdevices queues with
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// size of netdevicesQueueSize packets [100] without BQL bql BQL
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// [false]
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// *** fixed configuration ***
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//
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// Two TCP flows are generated: one from n1 to n3 and the other from n3 to n1.
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// Additionally, n1 pings n3, so that the RTT can be measured.
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//
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// The output will consist of a number of ping Rtt such as:
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//
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=111 ms
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=111 ms
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=110 ms
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=111 ms
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=111 ms
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=112 ms
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// /NodeList/0/ApplicationList/2/$ns3::Ping/Rtt=111 ms
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//
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// The files output will consist of a trace file with bytes in queue and of a trace file for limits
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// (when BQL is enabled) both for bottleneck NetDevice on n2, two files with upload and download
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// goodput for flows configuration and a file with flow monitor stats.
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//
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// If you use an AQM as queue disc on the bottleneck netdevices, you can observe that the ping Rtt
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// decrease. A further decrease can be observed when you enable BQL.
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#include "ns3/applications-module.h"
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#include "ns3/core-module.h"
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#include "ns3/flow-monitor-module.h"
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#include "ns3/internet-apps-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/mtp-module.h"
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#include "ns3/network-module.h"
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#include "ns3/point-to-point-module.h"
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#include "ns3/traffic-control-module.h"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE("BenchmarkQueueDiscs");
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/**
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* Print the queue limits.
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*
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* \param stream The output stream.
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* \param oldVal Old value.
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* \param newVal New value.
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*/
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void
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LimitsTrace(Ptr<OutputStreamWrapper> stream, uint32_t oldVal, uint32_t newVal)
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{
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*stream->GetStream() << Simulator::Now().GetSeconds() << " " << newVal << std::endl;
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}
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/**
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* Print the bytes in the queue.
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*
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* \param stream The output stream.
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* \param oldVal Old value.
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* \param newVal New value.
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*/
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void
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BytesInQueueTrace(Ptr<OutputStreamWrapper> stream, uint32_t oldVal, uint32_t newVal)
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{
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*stream->GetStream() << Simulator::Now().GetSeconds() << " " << newVal << std::endl;
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}
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/**
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* Sample and print the queue goodput.
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*
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* \param app The Tx app.
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* \param stream The output stream.
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* \param period The sampling period.
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*/
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static void
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GoodputSampling(ApplicationContainer app, Ptr<OutputStreamWrapper> stream, float period)
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{
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Simulator::Schedule(Seconds(period), &GoodputSampling, app, stream, period);
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double goodput;
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uint64_t totalPackets = DynamicCast<PacketSink>(app.Get(0))->GetTotalRx();
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goodput = totalPackets * 8 / (Simulator::Now().GetSeconds() * 1024); // Kbit/s
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*stream->GetStream() << Simulator::Now().GetSeconds() << " " << goodput << std::endl;
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}
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/**
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* Print the ping RTT.
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*
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* \param context The context.
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* \param rtt The RTT.
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*/
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static void
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PingRtt(std::string context, uint16_t, Time rtt)
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{
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std::cout << context << "=" << rtt.GetMilliSeconds() << " ms" << std::endl;
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}
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int
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main(int argc, char* argv[])
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{
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MtpInterface::Enable();
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std::string bandwidth = "10Mbps";
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std::string delay = "5ms";
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std::string queueDiscType = "PfifoFast";
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uint32_t queueDiscSize = 1000;
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uint32_t netdevicesQueueSize = 50;
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bool bql = false;
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std::string flowsDatarate = "20Mbps";
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uint32_t flowsPacketsSize = 1000;
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float startTime = 0.1F; // in s
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float simDuration = 60;
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float samplingPeriod = 1;
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CommandLine cmd(__FILE__);
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cmd.AddValue("bandwidth", "Bottleneck bandwidth", bandwidth);
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cmd.AddValue("delay", "Bottleneck delay", delay);
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cmd.AddValue("queueDiscType",
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"Bottleneck queue disc type in {PfifoFast, ARED, CoDel, FqCoDel, PIE, prio}",
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queueDiscType);
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cmd.AddValue("queueDiscSize", "Bottleneck queue disc size in packets", queueDiscSize);
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cmd.AddValue("netdevicesQueueSize",
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"Bottleneck netdevices queue size in packets",
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netdevicesQueueSize);
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cmd.AddValue("bql", "Enable byte queue limits on bottleneck netdevices", bql);
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cmd.AddValue("flowsDatarate", "Upload and download flows datarate", flowsDatarate);
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cmd.AddValue("flowsPacketsSize", "Upload and download flows packets sizes", flowsPacketsSize);
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cmd.AddValue("startTime", "Simulation start time", startTime);
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cmd.AddValue("simDuration", "Simulation duration in seconds", simDuration);
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cmd.AddValue("samplingPeriod", "Goodput sampling period in seconds", samplingPeriod);
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cmd.Parse(argc, argv);
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float stopTime = startTime + simDuration;
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// Create nodes
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NodeContainer n1;
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NodeContainer n2;
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NodeContainer n3;
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n1.Create(1);
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n2.Create(1);
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n3.Create(1);
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// Create and configure access link and bottleneck link
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PointToPointHelper accessLink;
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accessLink.SetDeviceAttribute("DataRate", StringValue("100Mbps"));
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accessLink.SetChannelAttribute("Delay", StringValue("0.1ms"));
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accessLink.SetQueue("ns3::DropTailQueue", "MaxSize", StringValue("100p"));
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PointToPointHelper bottleneckLink;
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bottleneckLink.SetDeviceAttribute("DataRate", StringValue(bandwidth));
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bottleneckLink.SetChannelAttribute("Delay", StringValue(delay));
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bottleneckLink.SetQueue("ns3::DropTailQueue",
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"MaxSize",
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StringValue(std::to_string(netdevicesQueueSize) + "p"));
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InternetStackHelper stack;
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stack.InstallAll();
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// Access link traffic control configuration
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TrafficControlHelper tchPfifoFastAccess;
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tchPfifoFastAccess.SetRootQueueDisc("ns3::PfifoFastQueueDisc", "MaxSize", StringValue("1000p"));
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// Bottleneck link traffic control configuration
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TrafficControlHelper tchBottleneck;
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if (queueDiscType == "PfifoFast")
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{
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tchBottleneck.SetRootQueueDisc(
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"ns3::PfifoFastQueueDisc",
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"MaxSize",
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QueueSizeValue(QueueSize(QueueSizeUnit::PACKETS, queueDiscSize)));
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}
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else if (queueDiscType == "ARED")
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{
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tchBottleneck.SetRootQueueDisc("ns3::RedQueueDisc");
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Config::SetDefault("ns3::RedQueueDisc::ARED", BooleanValue(true));
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Config::SetDefault("ns3::RedQueueDisc::MaxSize",
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QueueSizeValue(QueueSize(QueueSizeUnit::PACKETS, queueDiscSize)));
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}
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else if (queueDiscType == "CoDel")
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{
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tchBottleneck.SetRootQueueDisc("ns3::CoDelQueueDisc");
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Config::SetDefault("ns3::CoDelQueueDisc::MaxSize",
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QueueSizeValue(QueueSize(QueueSizeUnit::PACKETS, queueDiscSize)));
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}
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else if (queueDiscType == "FqCoDel")
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{
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tchBottleneck.SetRootQueueDisc("ns3::FqCoDelQueueDisc");
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Config::SetDefault("ns3::FqCoDelQueueDisc::MaxSize",
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QueueSizeValue(QueueSize(QueueSizeUnit::PACKETS, queueDiscSize)));
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}
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else if (queueDiscType == "PIE")
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{
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tchBottleneck.SetRootQueueDisc("ns3::PieQueueDisc");
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Config::SetDefault("ns3::PieQueueDisc::MaxSize",
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QueueSizeValue(QueueSize(QueueSizeUnit::PACKETS, queueDiscSize)));
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}
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else if (queueDiscType == "prio")
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{
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uint16_t handle =
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tchBottleneck.SetRootQueueDisc("ns3::PrioQueueDisc",
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"Priomap",
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StringValue("0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1"));
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TrafficControlHelper::ClassIdList cid =
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tchBottleneck.AddQueueDiscClasses(handle, 2, "ns3::QueueDiscClass");
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tchBottleneck.AddChildQueueDisc(handle, cid[0], "ns3::FifoQueueDisc");
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tchBottleneck.AddChildQueueDisc(handle, cid[1], "ns3::RedQueueDisc");
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}
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else
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{
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NS_ABORT_MSG("--queueDiscType not valid");
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}
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if (bql)
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{
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tchBottleneck.SetQueueLimits("ns3::DynamicQueueLimits");
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}
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NetDeviceContainer devicesAccessLink = accessLink.Install(n1.Get(0), n2.Get(0));
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tchPfifoFastAccess.Install(devicesAccessLink);
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Ipv4AddressHelper address;
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address.SetBase("192.168.0.0", "255.255.255.0");
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address.NewNetwork();
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Ipv4InterfaceContainer interfacesAccess = address.Assign(devicesAccessLink);
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NetDeviceContainer devicesBottleneckLink = bottleneckLink.Install(n2.Get(0), n3.Get(0));
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QueueDiscContainer qdiscs;
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qdiscs = tchBottleneck.Install(devicesBottleneckLink);
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address.NewNetwork();
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Ipv4InterfaceContainer interfacesBottleneck = address.Assign(devicesBottleneckLink);
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Ptr<NetDeviceQueueInterface> interface =
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devicesBottleneckLink.Get(0)->GetObject<NetDeviceQueueInterface>();
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Ptr<NetDeviceQueue> queueInterface = interface->GetTxQueue(0);
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Ptr<DynamicQueueLimits> queueLimits =
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StaticCast<DynamicQueueLimits>(queueInterface->GetQueueLimits());
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AsciiTraceHelper ascii;
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if (bql)
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{
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queueDiscType = queueDiscType + "-bql";
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Ptr<OutputStreamWrapper> streamLimits =
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ascii.CreateFileStream(queueDiscType + "-limits.txt");
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queueLimits->TraceConnectWithoutContext("Limit",
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MakeBoundCallback(&LimitsTrace, streamLimits));
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}
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Ptr<Queue<Packet>> queue =
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StaticCast<PointToPointNetDevice>(devicesBottleneckLink.Get(0))->GetQueue();
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Ptr<OutputStreamWrapper> streamBytesInQueue =
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ascii.CreateFileStream(queueDiscType + "-bytesInQueue.txt");
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queue->TraceConnectWithoutContext("BytesInQueue",
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MakeBoundCallback(&BytesInQueueTrace, streamBytesInQueue));
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Ipv4InterfaceContainer n1Interface;
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n1Interface.Add(interfacesAccess.Get(0));
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Ipv4InterfaceContainer n3Interface;
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n3Interface.Add(interfacesBottleneck.Get(1));
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Ipv4GlobalRoutingHelper::PopulateRoutingTables();
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Config::SetDefault("ns3::TcpSocket::SegmentSize", UintegerValue(flowsPacketsSize));
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// Flows configuration
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// Bidirectional TCP streams with ping like flent tcp_bidirectional test.
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uint16_t port = 7;
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ApplicationContainer uploadApp;
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ApplicationContainer downloadApp;
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ApplicationContainer sourceApps;
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// Configure and install upload flow
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Address addUp(InetSocketAddress(Ipv4Address::GetAny(), port));
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PacketSinkHelper sinkHelperUp("ns3::TcpSocketFactory", addUp);
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sinkHelperUp.SetAttribute("Protocol", TypeIdValue(TcpSocketFactory::GetTypeId()));
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uploadApp.Add(sinkHelperUp.Install(n3));
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InetSocketAddress socketAddressUp = InetSocketAddress(n3Interface.GetAddress(0), port);
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OnOffHelper onOffHelperUp("ns3::TcpSocketFactory", Address());
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onOffHelperUp.SetAttribute("Remote", AddressValue(socketAddressUp));
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onOffHelperUp.SetAttribute("OnTime", StringValue("ns3::ConstantRandomVariable[Constant=1]"));
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onOffHelperUp.SetAttribute("OffTime", StringValue("ns3::ConstantRandomVariable[Constant=0]"));
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onOffHelperUp.SetAttribute("PacketSize", UintegerValue(flowsPacketsSize));
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onOffHelperUp.SetAttribute("DataRate", StringValue(flowsDatarate));
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sourceApps.Add(onOffHelperUp.Install(n1));
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port = 8;
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// Configure and install download flow
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Address addDown(InetSocketAddress(Ipv4Address::GetAny(), port));
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PacketSinkHelper sinkHelperDown("ns3::TcpSocketFactory", addDown);
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sinkHelperDown.SetAttribute("Protocol", TypeIdValue(TcpSocketFactory::GetTypeId()));
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downloadApp.Add(sinkHelperDown.Install(n1));
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InetSocketAddress socketAddressDown = InetSocketAddress(n1Interface.GetAddress(0), port);
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OnOffHelper onOffHelperDown("ns3::TcpSocketFactory", Address());
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onOffHelperDown.SetAttribute("Remote", AddressValue(socketAddressDown));
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onOffHelperDown.SetAttribute("OnTime", StringValue("ns3::ConstantRandomVariable[Constant=1]"));
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onOffHelperDown.SetAttribute("OffTime", StringValue("ns3::ConstantRandomVariable[Constant=0]"));
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onOffHelperDown.SetAttribute("PacketSize", UintegerValue(flowsPacketsSize));
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onOffHelperDown.SetAttribute("DataRate", StringValue(flowsDatarate));
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sourceApps.Add(onOffHelperDown.Install(n3));
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// Configure and install ping
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PingHelper ping(n3Interface.GetAddress(0));
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ping.SetAttribute("VerboseMode", EnumValue(Ping::VerboseMode::QUIET));
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ping.Install(n1);
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Config::Connect("/NodeList/*/ApplicationList/*/$ns3::Ping/Rtt", MakeCallback(&PingRtt));
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uploadApp.Start(Seconds(0));
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uploadApp.Stop(Seconds(stopTime));
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downloadApp.Start(Seconds(0));
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downloadApp.Stop(Seconds(stopTime));
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sourceApps.Start(Seconds(0 + 0.1));
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sourceApps.Stop(Seconds(stopTime - 0.1));
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Ptr<OutputStreamWrapper> uploadGoodputStream =
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ascii.CreateFileStream(queueDiscType + "-upGoodput.txt");
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Simulator::Schedule(Seconds(samplingPeriod),
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&GoodputSampling,
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uploadApp,
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uploadGoodputStream,
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samplingPeriod);
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Ptr<OutputStreamWrapper> downloadGoodputStream =
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ascii.CreateFileStream(queueDiscType + "-downGoodput.txt");
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Simulator::Schedule(Seconds(samplingPeriod),
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&GoodputSampling,
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downloadApp,
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downloadGoodputStream,
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samplingPeriod);
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// Flow monitor
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Ptr<FlowMonitor> flowMonitor;
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FlowMonitorHelper flowHelper;
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flowMonitor = flowHelper.InstallAll();
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accessLink.EnablePcapAll("queue");
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Simulator::Stop(Seconds(stopTime));
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Simulator::Run();
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flowMonitor->SerializeToXmlFile(queueDiscType + "-flowMonitor.xml", true, true);
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Simulator::Destroy();
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return 0;
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}
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