How to Calculate Network Asset Management in omnet++
To calculate the network asset management in OMNeT++ needs to include tracking and handling the several assets in a network, like devices, servers, software, and configurations. Asset management supports make sure that all network components are appropriately monitored, updated, and maintained, contributing to the overall security and efficiency of the network.
Step-by-Step Implementations:
- Understand Network Asset Management
Network asset management contains numerous key activities:
- Asset Discovery: Finding all devices, software, and configurations in the network.
- Asset Inventory: Maintain an up-to-date list of all assets, with their status and configurations.
- Asset Monitoring: Always monitoring the health, performance, and security status of assets.
- Asset Lifecycle Management: Handling the retirement of assets, maintenance, and deployment.
- Set up a Network with Asset Management Points
Make a network topology that includes points where asset management processes are enforced, like management servers, asset monitors, and separate devices in OMNeT++.
Example: Define a Network with Asset Management Points in NED
network AssetManagementNetwork {
submodules:
client: Client;
managementServer: ManagementServer; // Server responsible for asset management
router: Router;
managedNode: ManagedNode; // Node that needs to be managed
connections:
client.out++ –> router.in++;
router.out++ –> managedNode.in++;
managementServer.out++ –> managedNode.in++;
}
- Implement Asset Discovery and Inventory
Denoting the asset management points like the management server or managed node, execute logic to discover assets, collect inventory information, and keep an up-to-date list of assets in the OMNeT++ modules.
Example: Implementing an Asset Management Server
#include <omnetpp.h>
using namespace omnetpp;
class ManagementServer : public cSimpleModule {
private:
int assetsDiscovered = 0;
std::vector<std::string> assetInventory;
std::ofstream assetLogFile;
protected:
virtual void initialize() override {
// Open a log file to store asset management records
assetLogFile.open(“asset_log.txt”);
}
virtual void handleMessage(cMessage *msg) override {
// Simulate asset discovery and inventory management
if (discoverAsset(msg)) {
assetsDiscovered++;
updateInventory(msg);
logAssetEvent(msg, “Asset discovered”);
}
// Forward the packet to the next node
send(msg, “out”);
}
bool discoverAsset(cMessage *msg) {
// Implement logic to discover assets
return strcmp(msg->getName(), “assetDiscovery”) == 0;
}
void updateInventory(cMessage *msg) {
// Add the asset to the inventory list
assetInventory.push_back(msg->getName());
}
void logAssetEvent(cMessage *msg, const char *status) {
// Log the event to the asset management log file
simtime_t currentTime = simTime();
const char *moduleName = getFullPath().c_str();
assetLogFile << currentTime << ” – ” << moduleName << ” – ” << status << “: ” << msg->getName() << std::endl;
// Optionally, log to the simulation output
EV << currentTime << ” – ” << moduleName << ” – ” << status << “: ” << msg->getName() << std::endl;
}
virtual void finish() override {
// Record asset management statistics
recordScalar(“Assets Discovered”, assetsDiscovered);
recordScalar(“Total Assets”, assetInventory.size());
// Close the asset management log file at the end of the simulation
assetLogFile.close();
}
};
Define_Module(ManagementServer);
- Implement Asset Monitoring and Maintenance
Along with discovering assets, asset management encompasses always observing and maintaining them. Implement a module like a managed node that informs its status to the management server and receives maintenance updates.
Example: Implementing a Managed Node
class ManagedNode : public cSimpleModule {
private:
bool isOperational = true;
int maintenanceActions = 0;
protected:
virtual void handleMessage(cMessage *msg) override {
// Handle asset monitoring and maintenance
if (strcmp(msg->getName(), “maintenanceUpdate”) == 0) {
performMaintenance();
logMaintenanceEvent(“Maintenance performed successfully”);
delete msg; // Maintenance message is no longer needed
} else {
// Handle normal traffic
send(msg, “out”);
}
}
void performMaintenance() {
// Implement maintenance logic
maintenanceActions++;
isOperational = true;
}
void logMaintenanceEvent(const char *status) {
// Log the maintenance event
simtime_t currentTime = simTime();
const char *moduleName = getFullPath().c_str();
EV << currentTime << ” – ” << moduleName << ” – ” << status << std::endl;
}
virtual void finish() override {
// Record maintenance statistics
recordScalar(“Maintenance Actions”, maintenanceActions);
recordScalar(“Is Operational”, isOperational);
}
};
Define_Module(ManagedNode);
- Simulate Traffic and Asset Management Activities
Make traffic from the client and simulate asset discovery, observing, and maintenance activities among the management server and the managed nodes.
Example: Traffic Simulation with Asset Management
class Client : public cSimpleModule {
protected:
virtual void initialize() override {
// Start generating normal and discovery traffic
scheduleAt(simTime() + par(“sendInterval”).doubleValue(), new cMessage(“normalTraffic”));
scheduleAt(simTime() + par(“sendInterval”).doubleValue() + 1, new cMessage(“assetDiscovery”));
}
virtual void handleMessage(cMessage *msg) override {
// Send the traffic to the router and management server for asset management
send(msg, “out”);
}
};
- Monitor and Analyse Asset Management Data
The logs and metrics made by the asset management points can be analysed to evaluate the effectiveness of the asset management process. Key metrics include:
- Assets Discovered: The number of assets identified by the management server.
- Maintenance Actions: The number of maintenance actions executed on the managed nodes.
- Operational Status: The proportion of assets that remain operational after maintenance.
Example: Calculating Asset Management Effectiveness
class ManagementServer : public cSimpleModule {
private:
int assetsDiscovered = 0;
int maintenancePerformed = 0;
protected:
virtual void handleMessage(cMessage *msg) override {
if (discoverAsset(msg)) {
assetsDiscovered++;
updateInventory(msg);
}
// Simulate sending maintenance updates
cMessage *maintenanceMsg = new cMessage(“maintenanceUpdate”);
send(maintenanceMsg, “out”);
maintenancePerformed++;
send(msg, “out”);
}
virtual void finish() override {
double operationalRate = (double)maintenancePerformed / assetsDiscovered * 100.0;
recordScalar(“Operational Rate (%)”, operationalRate);
}
};
- Analyse Asset Management Effectiveness
Examine the effectiveness of the asset management process by assessing after running the simulation:
- Asset Discovery and Inventory: How well assets were found and inventoried across the network.
- Asset Monitoring and Maintenance: The efficiency of monitoring and maintaining assets to have them operational.
- Impact on Network Performance: How asset management activities disturbed network performance, like latency or uptime.
- Advanced Asset Management Features
For more comprehensive asset management, we may need to:
- Implement Automated Asset Discovery: Constantly discover and inventory assets as they are additional to the network.
- Simulate Lifecycle Management: Execute asset lifecycle management, containing deployment, maintenance, and retirement.
- Implement Real-Time Monitoring: Always monitor the status of all assets in real-time and trigger maintenance actions as required.
- Example Scenario
Asset management metrics, like assets discovered, maintenance actions, and operational rates, are recorded and analysed. In this example, the ManagementServer and ManagedNode modules log and handle assets by finding them, observing their status, and executing maintenance.
network AssetManagementExample {
submodules:
client: Client;
managementServer: ManagementServer;
router: Router;
managedNode: ManagedNode;
connections:
client.out++ –> router.in++;
router.out++ –> managedNode.in++;
managementServer.out++ –> managedNode.in++;
}
- Post-Simulation Asset Management Analysis
To observe the recorded asset management metrics, like maintenance actions, the overall success of the asset management process, and asset discovery rates by using OMNeT++’s built-in analysis tools. This analysis will support to identify how well the network manages its assets and where improvements may be desired.
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