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Creating Links in Wired Network - (BCA / B.Tech)

Creating Links in Hindi | Process of creating links in a wired network in Hindi:

The process of creating links in a wired network is an important task in NS2, which enables data communication between nodes. The creation of nodes, adding connections, specifying the characteristics of links, and setting up traffic generation are necessary for creating a consistent and functional network.
By using NS2, researchers and students can study various aspects of wired networks, which is extremely important for networking research.

Creating connections or links in a wired network is an important process that is necessary for transmitting data between different nodes. To understand the process of creating links in a wired network using NS2 (Network Simulator 2),
we need to focus on some basic concepts, setup methods, and examples.

Process of creating links in wired networks in Hindi | Process of creating links in a wired network:

1. Introduction to wired networks: A wired network is a network in which nodes are connected through physical cables. These networks generally have high speed and stability because data is sent directly through the connection.

2. Importance of link creation in NS2: In NS2, the creation of links enables data transfer between different nodes. This ensures that data can reach from one node to another without any hindrance.

3. Process of creating a link:

a. Creation of a simulator: First, you need to create a simulator object:

set ns [new Simulator]

b. Creation of nodes: Then, you need to create the nodes that will be linked together:

set node1 [$ns node]
set node2 [$ns node]
set node3 [$ns node]
Here, we have created three nodes (node1, node2, and node3).

c. Adding links: Now, you can add links between the nodes. In NS2, this is done using the connect command:

# Adding links between nodes
$ns connect $node1 $node2
$ns connect $node2 $node3
This command establishes links between node1 and node2, and between node2 and node3.

d. Characteristics of a link: You can also specify the characteristics of a link, such as bandwidth, latency, and packet loss. Example:

# Setting bandwidth and latency for the connection
$ns duplex-link $node1 $node2 1Mb 10ms DropTail
$ns duplex-link $node2 $node3 1Mb 10ms DropTail
Here, by using the duplex-link command, we have set a bandwidth of 1 megabit per second (Mb) and a latency of 10 milliseconds between node1 and node2. DropTail refers to the queue management method.

e. Traffic generation: Now, you can set up traffic generation to transfer data between the nodes. Example:

set tcp_agent [$ns create-traffic-generator TCP]
$ns attach-agent $node1 $tcp_agent
$ns connect $tcp_agent $node2
This command attaches the TCP agent to node1 and connects it to node2.

f. Running the simulation: Once the links and traffic generation are set up, you can give the command to run the simulation:

$ns run

4. Observation of data transfer between links and nodes

During the simulation, data packets travel between the nodes, and you can see this in the trace file. This file helps you to understand how the data is flowing and if there are any obstacles.

Creating Links in Wired Network

Creating Links in Hindi | Process of creating links in a wired network in Hindi:

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