Skip to content

Lab Task #4

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

Lab Task #4

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
392aa5c
Added ipv6/test-ipv6.py
Hrily Nov 13, 2017
25818e3
Added red-vs-fengadaptive.py
dhavaljk26 Nov 13, 2017
eedeb5d
Update red-vs-fengadaptive.py
Hrily Nov 13, 2017
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
58 changes: 58 additions & 0 deletions ipv6/test-ipv6.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,58 @@
# /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
# /*
# * Copyright (c) 2008 Louis Pasteur University / Telecom Bretagne
# *
# * This program is free software; you can redistribute it and/or modify
# * it under the terms of the GNU General Public License version 2 as
# * published by the Free Software Foundation;
# *
# * This program is distributed in the hope that it will be useful,
# * but WITHOUT ANY WARRANTY; without even the implied warranty of
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# * GNU General Public License for more details.
# *
# * You should have received a copy of the GNU General Public License
# * along with this program; if not, write to the Free Software
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# *
# * Author: Angelos Chatzipapas <[email protected]> /
# * <[email protected]>
# */

import ns.network
import ns.core
import ns.applications

ns.core.LogComponentEnable("UdpEchoClientApplication", ns.core.LOG_LEVEL_ALL)

print "Test Ipv6"

m_addresses = [ None for _i in range(10) ]

m_addresses[0] = ns.network.Mac48Address("00:00:00:00:00:01");
m_addresses[1] = ns.network.Mac48Address("00:00:00:00:00:02");
m_addresses[2] = ns.network.Mac48Address("00:00:00:00:00:03");
m_addresses[3] = ns.network.Mac48Address("00:00:00:00:00:04");
m_addresses[4] = ns.network.Mac48Address("00:00:00:00:00:05");
m_addresses[5] = ns.network.Mac48Address("00:00:00:00:00:06");
m_addresses[6] = ns.network.Mac48Address("00:00:00:00:00:07");
m_addresses[7] = ns.network.Mac48Address("00:00:00:00:00:08");
m_addresses[8] = ns.network.Mac48Address("00:00:00:00:00:09");
m_addresses[9] = ns.network.Mac48Address("00:00:00:00:00:10");

prefix1 = ns.network.Ipv6Address("2001:1::")

print "prefix = {0}".format(prefix1)

for i in range(10):
print "address = {0}".format (m_addresses[i])
ipv6address = ns.network.Ipv6Address.MakeAutoconfiguredAddress (m_addresses[i], prefix1)
print "address = {0}".format (ipv6address)

prefix2 = ns.network.Ipv6Address("2002:1::")

print "prefix = {0}".format(prefix2)

for i in range(10):
ipv6address = ns.network.Ipv6Address.MakeAutoconfiguredAddress (m_addresses[i], prefix2)
print "address = {0}".format (ipv6address)
150 changes: 150 additions & 0 deletions traffic-control/red-vs-fengadaptive.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,150 @@
import ns.core
import ns.network
import ns.internet
import ns.point_to_point
import ns.applications
import ns.point_to_point_layout
import ns.traffic_control
import sys


cmd = ns.core.CommandLine()

cmd.nLeaf = 10;
cmd.maxPackets = 100;
cmd.queueDiscLimitPackets = 1000;
cmd.queueDiscType = "RED";
cmd.pktSize = 512;
cmd.appDataRate = "10Mbps";
cmd.modeBytes = False;
cmd.minTh = 5;
cmd.maxTh = 15;

port = 5001;
bottleNeckLinkBw = "1Mbps";
bottleNeckLinkDelay = "50ms";

cmd.AddValue ("nLeaf", "Number of left and right side leaf nodes");
cmd.AddValue ("maxPackets","Max Packets allowed in the device queue");
cmd.AddValue ("queueDiscLimitPackets","Max Packets allowed in the queue disc");
cmd.AddValue ("queueDiscType", "Set Queue disc type to RED or FengAdaptive");
cmd.AddValue ("appPktSize", "Set OnOff App Packet Size");
cmd.AddValue ("appDataRate", "Set OnOff App DataRate");
cmd.AddValue ("modeBytes", "Set Queue disc mode to Packets <false> or bytes <true>");
cmd.AddValue ("redMinTh", "RED queue minimum threshold");
cmd.AddValue ("redMaxTh", "RED queue maximum threshold");
cmd.Parse (sys.argv);

nLeaf = int(cmd.nLeaf)
maxPackets = int(cmd.maxPackets)
queueDiscLimitPackets = int(cmd.queueDiscLimitPackets)
queueDiscType = cmd.queueDiscType
pktSize = int(cmd.pktSize)
appDataRate = cmd.appDataRate
modeBytes = cmd.modeBytes
minTh = int(cmd.minTh)
maxTh = int(cmd.maxTh)

if ((queueDiscType != "RED") and (queueDiscType != "FengAdaptive")):
print "Invalid queue disc type: Use --queueDiscType=RED or --queueDiscType=FengAdaptive"
sys.exit(1)

ns.core.Config.SetDefault ("ns3::OnOffApplication::PacketSize", ns.core.UintegerValue (pktSize))
ns.core.Config.SetDefault ("ns3::OnOffApplication::DataRate", ns.core.StringValue (appDataRate))

ns.core.Config.SetDefault ("ns3::QueueBase::Mode", ns.core.StringValue ("QUEUE_MODE_PACKETS"))
ns.core.Config.SetDefault ("ns3::QueueBase::MaxPackets", ns.core.UintegerValue (maxPackets))


if (modeBytes == "False"):
ns.core.Config.SetDefault ("ns3::RedQueueDisc::Mode", ns.core.StringValue ("QUEUE_DISC_MODE_PACKETS"));
ns.core.Config.SetDefault ("ns3::RedQueueDisc::QueueLimit", ns.core.UintegerValue (queueDiscLimitPackets));
else:
ns.core.Config.SetDefault ("ns3::RedQueueDisc::Mode", ns.core.StringValue ("QUEUE_DISC_MODE_BYTES"));
ns.core.Config.SetDefault ("ns3::RedQueueDisc::QueueLimit", ns.core.UintegerValue (queueDiscLimitPackets * pktSize));
minTh *= pktSize;
maxTh *= pktSize;

ns.core.Config.SetDefault ("ns3::RedQueueDisc::MinTh", ns.core.DoubleValue (minTh));
ns.core.Config.SetDefault ("ns3::RedQueueDisc::MaxTh", ns.core.DoubleValue (maxTh));
ns.core.Config.SetDefault ("ns3::RedQueueDisc::LinkBandwidth", ns.core.StringValue (bottleNeckLinkBw));
ns.core.Config.SetDefault ("ns3::RedQueueDisc::LinkDelay", ns.core.StringValue (bottleNeckLinkDelay));
ns.core.Config.SetDefault ("ns3::RedQueueDisc::MeanPktSize", ns.core.UintegerValue (pktSize));

if (queueDiscType == "FengAdaptive"):
# Turn on Feng's Adaptive RED
ns.core.Config.SetDefault ("ns3::RedQueueDisc::FengAdaptive", ns.core.BooleanValue (True));

# Create the point-to-point link helpers
bottleNeckLink = ns.point_to_point.PointToPointHelper ();
bottleNeckLink.SetDeviceAttribute ("DataRate", ns.core.StringValue (bottleNeckLinkBw));
bottleNeckLink.SetChannelAttribute ("Delay", ns.core.StringValue (bottleNeckLinkDelay));

pointToPointLeaf = ns.point_to_point.PointToPointHelper ();
pointToPointLeaf.SetDeviceAttribute ("DataRate", ns.core.StringValue ("10Mbps"));
pointToPointLeaf.SetChannelAttribute ("Delay", ns.core.StringValue ("1ms"));

d = ns.point_to_point_layout.PointToPointDumbbellHelper (nLeaf, pointToPointLeaf, nLeaf, pointToPointLeaf, bottleNeckLink);

# Install Stack
stack = ns.internet.InternetStackHelper ();
for i in range(d.LeftCount ()):
stack.Install (d.GetLeft (i));

for i in range(d.RightCount ()):
stack.Install (d.GetRight (i));

stack.Install (d.GetLeft ())
stack.Install (d.GetRight ())

tchBottleneck = ns.traffic_control.TrafficControlHelper ()
queueDiscs = ns.traffic_control.QueueDiscContainer ()
tchBottleneck.SetRootQueueDisc ("ns3::RedQueueDisc")
tchBottleneck.Install (d.GetLeft ().GetDevice (0))
queueDiscs = tchBottleneck.Install (d.GetRight ().GetDevice (0))

# Assign IP Addresses
d.AssignIpv4Addresses (ns.internet.Ipv4AddressHelper (ns.network.Ipv4Address ("10.1.1.0"), ns.network.Ipv4Mask ("255.255.255.0")), ns.internet.Ipv4AddressHelper (ns.network.Ipv4Address ("10.2.1.0"), ns.network.Ipv4Mask ("255.255.255.0")), ns.internet.Ipv4AddressHelper (ns.network.Ipv4Address ("10.3.1.0"), ns.network.Ipv4Mask ("255.255.255.0")));

# Install on/off app on all right side nodes
clientHelper = ns.applications.OnOffHelper ("ns3::TcpSocketFactory", ns.network.Address ())
clientHelper.SetAttribute ("OnTime", ns.core.StringValue ("ns3::UniformRandomVariable[Min=0.|Max=1.]"))
clientHelper.SetAttribute ("OffTime", ns.core.StringValue ("ns3::UniformRandomVariable[Min=0.|Max=1.]"))

sinkLocalAddress = ns.network.Address (ns.network.InetSocketAddress (ns.network.Ipv4Address.GetAny (), port));
packetSinkHelper = ns.applications.PacketSinkHelper ("ns3::TcpSocketFactory", sinkLocalAddress);
sinkApps = ns.network.ApplicationContainer ();
for i in range(d.LeftCount ()):
sinkApps.Add (packetSinkHelper.Install (d.GetLeft (i)));
sinkApps.Start (ns.core.Seconds (0.0));
sinkApps.Stop (ns.core.Seconds (30.0));

clientApps = ns.network.ApplicationContainer ();
for i in range(d.RightCount ()):
# Create an on/off app sending packets to the left side
remoteAddress = ns.network.AddressValue (ns.network.InetSocketAddress (d.GetLeftIpv4Address (i), port));
clientHelper.SetAttribute ("Remote", remoteAddress);
clientApps.Add (clientHelper.Install (d.GetRight (i)));
clientApps.Start (ns.core.Seconds (1.0)); # Start 1 second after sink
clientApps.Stop (ns.core.Seconds (15.0)); # Stop before the sink

ns.internet.Ipv4GlobalRoutingHelper.PopulateRoutingTables ();

print "Running the simulation"
ns.core.Simulator.Run ();

st = queueDiscs.Get (0).GetStats ();

if (st.GetNDroppedPackets (ns.traffic_control.RedQueueDisc.UNFORCED_DROP) == 0):
print "There should be some unforced drops"
sys.exit (1);

if (st.GetNDroppedPackets (ns.traffic_control.QueueDisc.INTERNAL_QUEUE_DROP) != 0):
print "There should be zero drops due to queue full"
sys.exit (1);

print "*** Stats from the bottleneck queue disc ***"
print st
print "Destroying the simulation"

ns.core.Simulator.Destroy ();