IT6511 NETWORKS LAB Manual, Networks Laboratory Manual – IT 5th SEM Anna University

Anna University Regulation 2013 Information Technology (IT) IT6511 NETWORKS LAB Manual for all experiments is provided below. Download link for IT 5th SEM IT6511 Networks Laboratory Manual is listed down for students to make perfect utilization and score maximum marks with our study materials.

Anna University Regulation 2013 Information Technology (IT) 5th SEM IT6511 NETWORKS LAB-Networks Laboratory Manual

EX.NO:1 Implementation of Stop and Wait Protocol and Sliding Window Protocol

AIM:

To write a java program to perform sliding window.

ALGORITHM:

1.Start the program.

2.Get the frame size from the user

3.To create the frame based on the user request.

4.To send frames to server from the client side.

5.If your frames reach the server it will send ACK signal to client otherwise it will send NACK signal to client.

6.Stop the program

Program :

import java.net.*;

import java.io.*;

import java.rmi.*;

public class slidsender

{

public static void main(String a[])throws Exception

{

ServerSocket ser=new ServerSocket(10);

Socket s=ser.accept();

DataInputStream in=new DataInputStream(System.in);

DataInputStream in1=new DataInputStream(s.getInputStream());

String sbuff[]=new String[8];

PrintStream p;

int sptr=0,sws=8,nf,ano,i;

String ch;

do {

p=new PrintStream(s.getOutputStream());

System.out.print(“Enter the no. of frames : “);

nf=Integer.parseInt(in.readLine());

p.println(nf);

if(nf<=sws-1) {

System.out.println(“Enter “+nf+” Messages to be send\n”);

for(i=1;i<=nf;i++)

{

sbuff[sptr]=in.readLine();

p.println(sbuff[sptr]);

sptr=++sptr%8;

}

sws-=nf;

System.out.print(“Acknowledgment received”);

ano=Integer.parseInt(in1.readLine());

System.out.println(” for “+ano+” frames”); sws+=nf;

}

else {

System.out.println(“The no. of frames exceeds window size”);

break;

}

System.out.print(“\nDo you wants to send some more frames : “);

ch=in.readLine(); p.println(ch);

}

while(ch.equals(“yes”));

s.close();

}

}

OUTPUT:

//SENDER OUTPUT

Enter the no. of frames : 4

Enter 4 Messages to be send

hiii

how r u

i am fine

how is evryone

Acknowledgment received for 4 frames

Do you wants to send some more frames : no

//RECEIVER OUTPUT

The received Frame 0 is : hiii

The received Frame 1 is : how r u

The received Frame 2 is : i am fine

The received Frame 3 is : how is everyone

IT6511 NETWORKS Lab Manual with all experiments – Download Here

IT6511 NETWORKS Lab Manual with all experiments – Download Here

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