How to Calculate Network Asset Management in ns3

To calculate Network asset management in ns3, to handle and monitor the network resources like devices, bandwidth, and connectivity, to improve the optimal performance and resource allocation. To maintained effectively by tracing the network usage of network assets, identifying underutilized resources and to make certain the assets.

Here, we provide how to stimulate and estimate the network assets in ns3:

Steps to Simulate and Calculate Network Asset Management in ns3

1. Set Up the ns3 Environment:
   • Make certain ns3 is installed and configured properly.
2. Define the Network Topology:
   • Create a network topology with nodes representing clients, servers, and intermediary nodes like routers or switches.
3. Implement Asset Management Mechanisms:
   • Define and implement mechanisms to monitor the usage of network assets, such as bandwidth, device status, and connectivity.
4. Install Applications:
   • Install traffic-generating applications on the nodes to simulate normal network traffic.
5. Monitor and Log Events:
   • Use trace sources or callbacks to monitor and log events such as packet transmissions, receptions, drops, and resource usage.
6. Analyze Asset Management Data:
   • Collect and analyze the logged data to assess the effectiveness of asset management and identify opportunities for optimization.

Example Code

Here, we are provided the sample on how you setup a basic ns3 simulation to evaluate the network asset management. This is the sample logs packet transmissions, receptions, drops, and bandwidth usage for each node.

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/applications-module.h”

#include “ns3/flow-monitor-module.h”

#include “ns3/packet.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE (“NetworkAssetManagementExample”);

std::map<uint32_t, uint64_t> packetsSent;

std::map<uint32_t, uint64_t> packetsReceived;

std::map<uint32_t, uint64_t> packetsDropped;

std::map<uint32_t, double> bandwidthUsage;

void TxCallback (Ptr<const Packet> packet, Ptr<Ipv4> ipv4, uint32_t interface)

{

uint32_t nodeId = ipv4->GetObject<Node>()->GetId();

packetsSent[nodeId]++;

}

void RxCallback (Ptr<const Packet> packet, Ptr<Ipv4> ipv4, uint32_t interface)

{

uint32_t nodeId = ipv4->GetObject<Node>()->GetId();

packetsReceived[nodeId]++;

}

void DropCallback (Ptr<const Packet> packet, Ptr<Ipv4> ipv4, uint32_t interface)

{

uint32_t nodeId = ipv4->GetObject<Node>()->GetId();

packetsDropped[nodeId]++;

}

void BandwidthCallback (Ptr<const Packet> packet, Ptr<Ipv4> ipv4, uint32_t interface)

{

uint32_t nodeId = ipv4->GetObject<Node>()->GetId();

bandwidthUsage[nodeId] += packet->GetSize() * 8.0 / (1024 * 1024); // Convert to Mbps

}

void CalculateNetworkAssetManagement ()

{

NS_LOG_UNCOND (“Network Asset Management Report:”);

for (auto it = packetsSent.begin (); it != packetsSent.end (); ++it)

{

uint32_t nodeId = it->first;

uint64_t sent = it->second;

uint64_t received = packetsReceived[nodeId];

uint64_t dropped = packetsDropped[nodeId];

double bandwidth = bandwidthUsage[nodeId];

NS_LOG_UNCOND (“Node ” << nodeId << “: Packets Sent = ” << sent << “, Packets Received = ” << received << “, Packets Dropped = ” << dropped << “, Bandwidth Usage = ” << bandwidth << ” Mbps”);

}

}

int main (int argc, char *argv[])

{

CommandLine cmd;

cmd.Parse (argc, argv);

Time::SetResolution (Time::NS);

// Create nodes

NodeContainer nodes;

nodes.Create (4); // Two clients and two servers

// Create point-to-point links

PointToPointHelper pointToPoint;

pointToPoint.SetDeviceAttribute (“DataRate”, StringValue (“10Mbps”));

pointToPoint.SetChannelAttribute (“Delay”, StringValue (“2ms”));

NetDeviceContainer devices01 = pointToPoint.Install (NodeContainer (nodes.Get (0), nodes.Get (1)));

NetDeviceContainer devices12 = pointToPoint.Install (NodeContainer (nodes.Get (1), nodes.Get (2)));

NetDeviceContainer devices23 = pointToPoint.Install (NodeContainer (nodes.Get (2), nodes.Get (3)));

// Install the internet stack on nodes

InternetStackHelper stack;

stack.Install (nodes);

// Assign IP addresses to the devices

Ipv4AddressHelper address;

address.SetBase (“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces01 = address.Assign (devices01);

address.SetBase (“10.1.2.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces12 = address.Assign (devices12);

address.SetBase (“10.1.3.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces23 = address.Assign (devices23);

// Enable routing

Ipv4GlobalRoutingHelper::PopulateRoutingTables ();

// Create UDP server on node 2 and node 3

UdpServerHelper server (9);

ApplicationContainer serverApp1 = server.Install (nodes.Get (2));

ApplicationContainer serverApp2 = server.Install (nodes.Get (3));

serverApp1.Start (Seconds (1.0));

serverApp1.Stop (Seconds (10.0));

serverApp2.Start (Seconds (1.0));

serverApp2.Stop (Seconds (10.0));

// Create UDP client on node 0 and node 1

UdpClientHelper client1 (interfaces12.GetAddress (1), 9);

client1.SetAttribute (“MaxPackets”, UintegerValue (320));

client1.SetAttribute (“Interval”, TimeValue (MilliSeconds (10)));

client1.SetAttribute (“PacketSize”, UintegerValue (1024));

UdpClientHelper client2 (interfaces23.GetAddress (1), 9);

client2.SetAttribute (“MaxPackets”, UintegerValue (320));

client2.SetAttribute (“Interval”, TimeValue (MilliSeconds (10)));

client2.SetAttribute (“PacketSize”, UintegerValue (1024));

ApplicationContainer clientApp1 = client1.Install (nodes.Get (0));

ApplicationContainer clientApp2 = client2.Install (nodes.Get (1));

clientApp1.Start (Seconds (2.0));

clientApp1.Stop (Seconds (10.0));

clientApp2.Start (Seconds (2.0));

clientApp2.Stop (Seconds (10.0));

// Trace packet transmission, reception, drops, and bandwidth usage

Config::ConnectWithoutContext (“/NodeList/*/ApplicationList/*/$ns3::UdpClient/Tx”, MakeCallback (&TxCallback));

Config::ConnectWithoutContext (“/NodeList/*/ApplicationList/*/$ns3::UdpServer/Rx”, MakeCallback (&RxCallback));

Config::ConnectWithoutContext (“/NodeList/*/DeviceList/*/Drop”, MakeCallback (&DropCallback));

Config::ConnectWithoutContext (“/NodeList/*/DeviceList/*/MacTx”, MakeCallback (&BandwidthCallback));

// Install flow monitor to capture performance metrics

FlowMonitorHelper flowHelper;

Ptr<FlowMonitor> flowMonitor = flowHelper.InstallAll ();

Simulator::Stop (Seconds (11.0));

Simulator::Run ();

CalculateNetworkAssetManagement ();

Simulator::Destroy ();

return 0;

}

Explanation

1. Setup: The code sets up a network topology with four nodes: two clients and two servers, connected by point-to-point links.
2. Internet Stack and Routing: The internet stack is installed on all nodes, and global routing is enabled.
3. Applications: UDP servers are installed on the server nodes (nodes 2 and 3), and UDP clients are installed on the client nodes (nodes 0 and 1) to generate traffic.
4. Asset Management Policies: The TxCallback, RxCallback, DropCallback, and BandwidthCallback functions are connected to trace packet transmissions, receptions, drops, and bandwidth usage. These functions update counters for each node and log relevant information.
5. Network Asset Management Calculation: The CalculateNetworkAssetManagement function logs the number of packets sent, received, and dropped by each node, and reports the bandwidth usage.

Running the Simulation

Compile and run the simulation using the following commands in your ns3 environment:

./waf configure

./waf build

./waf –run your-script-name

Replace your-script-name with the actual name of your script file.

The Network Asset Management can compile and executed successfully in ns3 tool to analyse the effectiveness of asset management and identify opportunities for optimization. Additional information will be provided on how the network asset management in other simulations. Share all your parameters with us to achieve the best results from our team when calculating Network Asset Management in ns3tool.