TELECOM

• Use Of TCP/IP
• Designing Applications For A Distributed Environment
• Standard And Nonstandard Application Protocols
• An Example Of Standard Application Protocol Use
• An Example Connection
• Application Protocols And Software Flexibility
• Viewing Services From The Provider's Perspective

• Introduction
• Motivation
• Terminology And Concepts
• Clients And Servers
• Privilege And Complexity
• Standard Vs. Nonstandard Client Software
• Parameterization Of Clients
• Connectionless Vs. Connection-Oriented Servers
• Stateless Vs. Stateful Servers

• Concurrency In Networks
• Concurrency In Servers
• Terminology And Concepts
• The Process Concept
• An Example Of Concurrent Process Creation
• Timeslicing
• Making Processes Diverge
• Executing New Code
• Context Switching And Protocol Software Design
• Concurrency And Asynchronous I/O

4. Program Interface To Protocols

• Loosely Specified Protocol Software Interface
• Interface Functionality
• Conceptual Interface Specification
• System Calls
• Two Basic Approaches To Network Communication

 5. The Socket Interface

• The Socket Abstraction
• Socket Descriptors And File Descriptors
• System Data Structures For Sockets
• Using Sockets
• Specifying An Endpoint Address
• Generic Address Structure
• Major System Calls Used With Sockets
• Using Socket Calls In A Program
• Symbolic Constants For Socket Call Parameters 

6. Algorithms And Issues In Client Software Design

• Client Architecture
• Identifying The Location Of A Server
• Parsing An Address Argument
• Looking Up A Domain Name
• The TCP Client Algorithm
• Allocating A Socket
• Choosing A Local Protocol Port Number
• Connecting A TCP Socket To A Server
• Communicating With The Server Using TCP
• Reading A Response From A TCP Connection
• Closing A TCP Connection
• The Need For Partial Close
• A Partial Close Operation
• Programming A UDP Client
• Connected And Unconnected UDP Sockets
• Communicating With A Server Using UDP
• Closing A Socket That Uses UDP
• Partial Close For UDP

 7. Example Client Software: The DAYTIME Service
 

• Concurrent Vs. Iterative Servers
• Connection-Oriented vs. Connectionless Access
• Connection-Oriented Servers
• Connectionless Servers
• Failure, Reliability, and Statelessness
• Optimizing Stateless Servers
• Four Basic Types of Servers
• Request Processing Time
• Iterative Server Algorithms
• An Iterative, Connection-Oriented Server Algorithm
• Placing The Socket In Passive Mode
• Accepting Connections And Using Them
• An Iterative, Connectionless Server Algorithm
• Forming A Reply Address In A Connectionless Server
• Master And Slave Processes
• A Concurrent, Connectionless Server Algorithm
• A Concurrent, Connection-Oriented Server Algorithm
• When To Use Each Server Type
• The Problem Of Server Deadlock

• Introduction
• Creating A Passive Socket
• Process Structure

• Introduction
• Allocating A Passive TCP Socket
• Process Structure
• Closing Connections
• Connection Termination And Server Vulnerability

• Introduction
• Iterative Vs. Concurrent Implementations
• Process Structure
• Cleaning Up Errant Processes

• Introduction
• Data-driven Processing In A Server
• Data-Driven Processing With A Single Process
• Process Structure Of A Single-Process Server

• Introduction
• Definition Of Deadlock
• Difficulty Of Deadlock Detection
• Deadlock Avoidance
• Deadlock Between A Client And Server
• Avoiding Deadlock In A Single Interaction
• Starvation Among A Set Of Clients And A Server
• Busy Connections And Starvation
• Avoiding Blocking Operations
• Processes, Connections, And Other Limits
• Cycles Of Clients And Servers