Introduction to Computer Networks

Course: Introduction, Data Link Control Protocols, Queuing Theory, Medium Access Control Protocols, LANs and Broadband Access Technologies, AN Bridging, TCP/IP in a Nutshell

Tutorial 1 TCP/IP Layer Model PIF protocol tirgul1.pdf 193 KB PIF.ppt 92160 Bytes Notes:  The PPT file contains the execution of the PIF example
Tutorial 2 Bit stream fragmentation  Error correction and detection, CRC tirgul2.pdf 194 KB
Tutorial 3 ARQ: Stop & Wait tirgul3.pdf 248 KB
Tutorial 4 ARQ continued: Go-Back-N, Selective Repeat tirgul4.pdf 358 KB
Tutorial 5 Queuing Theory tirgul5.pdf 210 KB
Tutorial 6 Aloha, Slotted Aloha, Exponential Backoff tirgul6.pdf 170 KB
Tutorial 7 CSMA, Bit Map tirgul7.pdf 90365 Bytes
Tutorial 8 Packet scheduling in DOCSIS tirgul8_new.pdf 142 KB
Tutorial 9 Wireless networks tirgul9.pdf 285 KB
Tutorial 10 Buffer Insertion Ring (BIR) tirgul10.pdf 301 KB
Tutorial 11 Transparent Spanning Tree (TST) bridges tirgul11.pdf 101 KB
Tutorial 12 The IP layer and ARP tirgul13.pdf 239 KB

Internet Networking

Course : Introduction to the internet and the TCP/IP. The IP layer. Internal and external routing protocols. Comparison between vector-distance and link-state protocols. Multicast protocols. Resource reservation protocols. The TCP protocol. TCP throughout enhancement. The WWW and the HTTP protocols. Web server throughout enhancement.

TCP Scenarios

Old Exams

Tutorial 1

Subnetting and CIDR

Recitation1-Subnets.ppt 126 KB

Tutorial 2

Header Compression

Recitation2_HeaderCompression.ppt 229 KB

Tutorial 3ICMPRecitation3_ICMP.ppt 178 KB

Tutorial 4

MANET AODV

Recitation4_MANET_AODV.ppt 109 KB

Tutorial 5

MANET TBRPF

Recitation5_TBRPF.ppt 196 KB

Tutorial 6

DVMRP

Recitation6_DVMRP.ppt 151 KB

Tutorial 7

TCP New Reno

Recitation7_TCPNewReno.ppt 92672 Bytes

Tutorial 8

Explicit Congestion Notification

Recitation8_ECN.ppt 104 KB

Tutorial 9

Socket Programming

Recitation9_Sockets.ppt 88576 Bytes Recitation9_SocketsExample.ppt 51200 Bytes

Tutorial 10

TCP SACK

Recitation10_TCPSack.ppt 191 KB

Tutorial 11

TCP Eiffel

Recitation11_TCPEiffel.ppt 122 KB

Tutorial 12

LSNAT - Load Sharing NAT

Recitation12_LSNAT.ppt 84992 Bytes

Tutorial 13 Web Caching Protocols  ICP, CARP Recitation13_ICP_CARP.ppt 76800 Bytes

Microsoft ASP.NET

Including Web Services and Service Oriented Architecture

Lecture 1

Overview of .NET, Visual Studio, Service Oriented Architecture for the Web, Web Services, SOAP, REST, WSDL, UDDI.
Introduction to ASP.NET Lecture slides (ppt 246k)
Service Oriented Architectures for the Web Lecture slides (ppt 929k)

Examples from the lecture notes

• Hello World 30 second web service
• integer and string argument passing - marginally more demanding web services
• PHP SOAP client
  • Oooops! - someone slipped on the SOAP - try PHP SOAP client
  • source code for the PHP SOAP client

Introduction to the Web and .NET (363k) 84 PowerPoint slides adapted from material written by Mark Sapossnek of Boston University and provided as part of the Microsoft faculty education pack. This includes a lot of good Level 2 backgound material. The first part is excellent revision of stuff that you really should be intimately familiar with. The last bit did rather tend towards selling the Micro$oft vision and required me to make a few adjustments.
Web Forms (zip 1.6M) and Data Access (zip 960k) - more faculty material from Microsoft - don't forget to wear protective clothing and handle with caution.

Lecture 2

Introduction to Microsoft Visual Studio Lecture slides (ppt 2.5M) using Visual Studio to create a web service, a windows application that uses a web service and a web application using web forms.

• Hello World 3 minute web service
• Temperature conversion 5 minute web service
• Temperature converter windows application using the temperature conversion web service
• Temperature converter PHP web application using the temperature conversion web service GET protocol
  • CalcTempGETclient.php source code
• Temperature converter PHP web application using the temperature conversion web service SOAP protocol
  • CalcTempSOAPclient.php source code
• useCTajax.html JavaScript example using DOM programming to create an AJAX behaviour accessing the web service
  • useCTajax.html The same application but running from staffweb. Check the error message
• useCT-XMLHttpRequest.html JavaScript example using an XMLHttpRequest object to access the web service
• Desk calculator 10 minute web application with validation
  • turn off client JavaScript to see the server side validation working

Lecture 3

More Microsoft Visual Studio Lecture slides (ppt 2.5M) data binding and database driven web services icluding XML aggregation and interoperability with PHP.

• Data binding to GUI components
• SQL Binding to a Data Grid
• Telephone directory as various web services
  • Telephone directory as a data set from SQL Server
  • Telephone directory as an XML document from SQL Server
  • Telephone directory as an XML document from MS Access using OLEDB
  • Telephone directory as an XML document read via a data set from MySQL via PHP service
  • Telephone directory as an XML document read via an XML text reader from MySQL via PHP web service
  • Telephone directory from SQL Server and MySQL via PHP web service merged using XML DOM
  • Telephone directory from SQL Server and MySQL via PHP web service merged using a data set
  • Telephone directory that fails to attach an XML processing instruction
  • Inserting a record into the telephone directory
• Directories merged from SQL Server and MySQL rendered client side with XSLT
• Directories merged from SQL Server and MySQL rendered server side with XSLT
• zip archive containing sources for the above
• Telephone directory as a PHP web service
  • source code for the PHP web service
• Telephone directory merged from MySQL and Access as a PHP web service
  • source code for the PHP web service
• Telephone directory with XSLT processing instruction
  • source code for the PHP web application
• Telephone directory merged from MySQL and SQL Server using SOAP transport
  • source code for the PHP web service
• Telephone directory merged from MySQL and Access with client side XSLT processing
  • source code for the PHP web application
• Telephone directory merged from MySQL and Access using nodeImport() with client side XSLT processing
  • source code for the PHP web application
• Telephone directory merged from MySQL and Access with server side XSLT processing
  • source code for the PHP web application
• XSLT used in the above examples

ASP.NET the EditPlus way

XML and Database connectivity in ASP.NET using EditPlus to cut code. These examples are stuck somewhere between old fashioned ASP and ASP.NET EditPlus is not the way to leverage the power of ASP.NET but these old examples provide simple illustrations of working with XML and MS Access.

That old fashioned ASP

• asp4php.doc (116k) Quick Introduction to ASP for PHP users
  • HelloWorld.asp
  • InputForm.html
• intensiveASP.doc (578k) Intensive ASP - 60 pages of good stuff

Tutorial Material

• Make sure that you can replicate all of the examples in the Introduction to ASP.NET PowerPoint - obviously!
• How about writing a short essay comparing and contrasting ASP with ASP.NET. What are the advantages claimed by Microsoft for ASP.NET? Are there any disadvantage?
• What is meant by the term service oriented architecture
• Is SAX available in the DOT.NET framework? Why would you need SAX when you have the XmlTextReader?

Good Stuff

• Guide to using ASP.NET and the Microsoft web servers at Greenwich - essential reading
• ASP.NET - The Official Microsoft ASP.NET 2.0 Site
• Codeplex - Microsoft open source project hosting web site
• AJAX tutorial movies - hosted locally
• otherlinks for .NET - loads of resources and articles about our favourite software house
• Mono - platform independant CLR
• Read all about Amazon web services and life without SOAP from Tim O'Reilly
• Neward and Trenaman consider REST, or The Great and Complete SOAP vs POX Debate

CSS Tutorials, Exercises, and Guide

Here are many CSS Tutorials, Exercises, Samples and a CSS Guide, at westciv.com, that provide good explanations of how to use Cascading Style Sheets for many types of web page elements and features. These CSS tutorials provide explanations and worked examples to help you quickly learn CSS and start creating your web pages and sites using style sheets. 

14 CSS Tutorials

 - Logo Effect
 - Floated Layout
 - Validating CSS and HTML
 - CSS for Page Layout
 - Pure CSS Rollovers
 - Creating a Decorative Side Panel
 - Customising Link Appearance
 - Styling Visited Links
 - General Text Appearance
 - Create your own Bullet Points
 - Create a Simple Navigation Bar
 - Create a Navigation Bar Using Unordered Lists and List Item Elements
 - Integrate Text and Images
 - CSS Buttons

CSS Exercises and Code Samples
Learn how to apply CSS text styling, page appearance and layout, for your web pages. These exercises and coding examples will help you learn how to use CSS.

1. Introduction 
2. A short intro to CSS 
3. Tool checklist 
4. My first style sheet 
Create a style sheet, and then an HTML document which links to it. 
5. Basic page appearance 
Create your first style sheet rules and start using some basic properties. 
6. More text properties 
Learn more methods of styling text. 
7. Class selectors 
Use the HTML class attribute to apply styling to individual elements. 
8. Styling links 
Customize how hyperlinks are displayed in relation to your website design. 
9. Page layout 
Use CSS to create a smooth liquid layout. 
10. Creative use of images 
How to use background images. 
11. Descendent selectors 
Find out how to selectively style elements on your page. 
12. Styling a navbar 
How to apply styling the navigation bar. 
13. Where to now? 
A list of resources for more detailed information and tools about CSS.

Guide to CSS:

Introduction to CSS
 - CSS intro
 - why use css?
 - what's a style sheet?
 - how do they work?
 - linking & embedding
 - statements

Selectors
 - type
 - class
 - id
 - descendant
 - link pseudo class
 - pseudo element
 - selector groups
 - dynamic pseudo class
 - language pseudo class
 - child
 - first child
 - adjacent
 - attribute

Properties
 - text style
 - text layout
 - background
 - border
 - margin
 - padding
 - page layout
 - element type
 - user interface
 - values

Advanced
 - cascade & inheritance
 - generated content
 - media
 - printing
 - mobile profile