Programming Assignment #2

Slides:

Advertisements

Similar presentations

TCP/IP Protocol Suite 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 13 Introduction to the Transport.

Advertisements

An Introduction to Internetworking. Why distributed systems - Share resources (devices & CPU) - Communicate people (by transmitting data)

WXES2106 Network Technology Semester /2005 Chapter 8 Intermediate TCP CCNA2: Module 10.

Process-to-Process Delivery:

1 CSC111H Client-Server: An Introduction Dennis Burford

Transport Layer Moving Segments. Transport Layer Protocols Provide a logical communication link between processes running on different hosts as if directly.

Chapter 13 Introduction to the Transport Layer

McGraw-Hill Chapter 23 Process-to-Process Delivery: UDP, TCP Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

CS 145A Reliable Communication Netlab.caltech.edu/course.

Distributed Computing & Embedded Systems Chapter 4: Remote Method Invocation Dr. Umair Ali Khan.

Ch 3. Transport Layer Myungchul Kim

Process-to-Process Delivery:

Chapter 3: The Data Link Layer –to achieve reliable, efficient communication between two physically connected machines. –Design issues: services interface.

Distributed Web Systems Distributed Objects and Remote Method Invocation Lecturer Department University.

Chapter 23 Introduction To Transport Layer Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Internet Socket Programing

Introduction to Networks

09-Transport Layer: TCP Transport Layer.

Chapter 3 Transport Layer

Fast Retransmit For sliding windows flow control we waited for a timer to expire before beginning retransmission of a packet TCP uses an additional mechanism.

Programming Assignment #1

Transport Layer.

Process-to-Process Delivery, TCP and UDP protocols

Midterm Exam Review Release questions via webcourse “assignment” around 1:30pm, Thur. Oct. 14th, due via webcourse at 11:59pm Submit format: Word file,

CMPT 371 Data Communications and Networking

Chapter 14 User Datagram Program (UDP)

PART 5 Transport Layer Computer Networks.

Chapter 6: Transport Layer (Part I)

TCP Transport layer Er. Vikram Dhiman LPU.

Reliable Transport CS 3700 Project 3.

Programming Assignment #3

File Transfer and access

Introduction to Networks

Process-to-Process Delivery:

Subject Name: Computer Communication Networks Subject Code: 10EC71

Packet Sniffing.

Transport Layer Our goals:

Introduction to the Transport Layer

Sarah Diesburg Operating Systems COP 4610

Chapter 23 Introduction To Transport Layer

Programming Assignment I

Internet Control Message Protocol Version 4 (ICMPv4)

Anthony D. Joseph and Ion Stoica

Process-to-Process Delivery:

Remote Procedure Call (RPC)

Chapter 5 TCP Control Flow

Reliable Transport CS 3700 Project 3.

Distributed Systems CS

Andy Wang Operating Systems COP 4610 / CGS 5765

CPEG514 Advanced Computer Networkst

Performance Issues in WWW Servers

Chapter 5 Transport Layer Introduction

PART 5 Transport Layer.

8: Principles of Reliable Data Transfer

Getting Connected (Chapter 2 Part 3)

Internet Applications & Programming

Transportation Layer.

An Introduction to Internetworking

An Introduction to Internetworking

46 to 1500 bytes TYPE CODE CHECKSUM IDENTIFIER SEQUENCE NUMBER OPTIONAL DATA ICMP Echo message.

Chapter 5 TCP Control Flow

Programming Assignment #1

CS4470 Computer Networking Protocols

Process-to-Process Delivery: UDP, TCP

Computer Networks Protocols

Distributed Systems CS

Computer network HW2 -Retransmission + Congest control

Midterm Exam Review Release questions via webcourse “assignment” around 10:30am, Thur. Oct. 25th, due via webcourse at 10:30am next day Submit format:

Transport Layer 9/22/2019.

Exceptions and networking

Presentation transcript:

Programming Assignment #2 Implement a TCP analog for transferring Due Date: Monday October 29 at 11:55pm Hello everyone. Now I’m gonna introduce something about socket programming. First we will try to get a general idea about what socket is. Then we will introduce socket programming with Java and socket programming with Python. The corresponding reading material is the Section 2.7 in Chapter 2, and the project 1 description. Readings: Chapter 3 Project II Description CSci4211: Programming Assignment #2 1 1

CSci4211: Programming Assignment #2 What should we do? Implement a typical Client/Server model. Client sends a file to server, through a unreliable network layer. The source code of network layer has been provided. Server gets message from network layer. If the message is correct, write to a file. Stop & Wait is enough. GBN or SR is better! CSci4211: Programming Assignment #2 2

CSci4211: Programming Assignment #2 Why is it difficult? Unreliable network layer May drop your packet May change content of your packet May delay the packet Even your ACK can be lost on the way! CSci4211: Programming Assignment #2 3

CSci4211: Programming Assignment #2 Several Cases CSci4211: Programming Assignment #2 4

CSci4211: Programming Assignment #2 Several Cases CSci4211: Programming Assignment #2 5

CSci4211: Programming Assignment #2 How to handle it? Sequence number for dropped packets Timeout mechanism for lost packets Checksum for corrupted packets CSci4211: Programming Assignment #2 6

Things you may need to work on… Socket Programming File Operation Timeout operation Examples have been provided. Checksum lib hashlib in Python MessageDigest in Java CSci4211: Programming Assignment #2 7

Things you may need to notice… Start early! Things are worse this time. No code skeleton. Let me know if you have any questions anytime. Make your code east to read. More explanations may follow. CSci4211: Programming Assignment #2 8

CSci4211: Programming Assignment #2 Q&A CSci4211: Programming Assignment #2 9