Practical Computer Network Analysis and Design

Preface

Chapter 1 A Systems Approach to Network Design

1.1 Introduction--Traditional Network Design1.2 The Analysis and Design Processes1.3 Network Services and Services-Based Networking1.4 Systems and Network Services
1.4.1 Systems1.4.2 Network Services
1.5 Characterizing Services
1.5.1 Service Requests1.5.2 Service Offerings1.5.3 Service Performance Requirements1.5.4 Service Metrics1.5.5 Reservations and Deadline Scheduling
1.6 Concluding RemarksSuggested Further ReadingExercises

2.1 Background for Requirements Analysis2.2 User Requirements2.3 Application Requirements
2.3.1 Types of Applications2.3.2 Reliability2.3.3 Capacity2.3.4 Delay2.3.5 Application Groups
2.4 Host Requirements
2.4.1 Types of Hosts and Equipment2.4.2 Performance Characteristics2.4.3 Location Information
2.5 Network Requirements
2.5.1 Existing Networks and Migration2.5.2 Functional Requirements2.5.3 Financial Requirements2.5.4 Enterprise Requirements
2.6 Concluding RemarksSuggested Further ReadingExercises

3.1 Gathering and Listing Requirements
3.1.1 Determining Initial Conditions3.1.2 Working with Users3.1.3 Listing Requirements and Mapping Applications
3.2 Developing Service Metrics to Measure Performance3.3 Characterizing Behavior
3.3.1 Usage Patterns3.3.2 Application Behavior
3.4 Developing Performance Thresholds
3.4.1 Reliability Requirements3.4.2 Delay Requirements3.4.3 Capacity Requirements3.4.4 Environment-Specific Thresholds3.4.5 Specified Services
Example 3.1--Telemetry ApplicationExample 3.2--Computing Consolidation3.5 Distinguishing Between Service Performance Levels
3.5.1 Guidelines in Distinguishing Services
3.6 Concluding RemarksSuggested Further ReadingExercises

4.1 Templates, Tables, and Maps
4.1.1 Application Maps
4.2 Simplifying the Requirements Analysis Process
4.2.1 Simplifying Assumption—Only Best-Effort Delivery4.2.2 Simplifying Assumption—Focusing on Highest-Priority Application
Example 4.14.3 Case Study
4.3.1 Background Information4.3.2 Project Definition4.3.3 Requirements Analysis

5.1 Background for Flow Analysis5.2 Flows5.3 Data Sources and Sinks5.4 Flow Models5.5 Flow Boundaries5.6 Flow Distributions5.7 The Flow Specification
5.7.1 The Flowspec Algorithm5.7.2 Performance Modifiers
5.8 Concluding RemarksSuggested Further ReadingExercises

6.1 Applying the Flow ModelsExample 6.1--Data Mining Environment6.2 Establishing Flow Boundaries6.3 Applying Flow Distributions
6.3.1 Guidelines for Flow Distributions6.3.2 Using the Flow Distributions
6.4 Combining Flow Models, Boundaries, and DistributionsExample 6.2--Application MappingExample 6.3--Flow Patterns6.5 Developing the Flow Specification
6.5.1 Identifying Flows in the Design Environment
6.6 Prioritizing Flows
6.6.1 Applying Cost Information to Flows
6.7 Concluding RemarksExercises

7.1 Simplifying the Flow Analysis Process
7.1.1 Simplifying Assumption 1: Showing Only Flow-Model-Based Flows7.1.2 Simplifying Assumption 2: Showing Only Backbone Flows7.1.3 Simplifying Assumption 3: Standardizing Flows
7.2 Examples of Applying FlowspecsExample 7.1--Multipart Flowspec7.3 Case Study

8.1 Background for Logical Design8.2 Establishing Design Goals8.3 Developing Criteria for Technology Evaluation
8.3.1 NBMA and Broadcast Technologies8.3.2 Functions and Features of the Technology8.3.3 Flow Considerations8.3.4 Guidelines and Constraints on Technology Evaluations
Example 8.1--Multipart FlowspecExample 8.2--Unitary FlowspecExample 8.3--Estimating Scalability8.4 Making Technology Choices for the Design
8.4.1 Sizing the Network8.4.2 Isolating Areas—The Black Box Method8.4.3 Applying Evaluation Criteria and Guidelines
Example 8.4--Minimizing Cost in the Design8.5 Case Studies
8.5.1 An Integrated Design Environment
8.6 Concluding RemarksExercises

9.1 Background for Logical Design9.2 Shared Medium (No Interconnection)9.3 Switching and Routing: Comparisons and Contrasts9.4 Switching
9.4.1 ATM Switching
9.5 Routing9.6 Hybrid Switching/Routing Mechanisms
9.6.1 NHRP9.6.2 MPOA9.6.3 Service Switching
9.7 Applying Interconnection Mechanisms to the Design
9.7.1 Hierarchy9.7.2 Redundancy
9.8 Case Study9.9 Concluding RemarksSuggested Further ReadingExercises

10.1 Integrating Network Management and Security into the Design10.2 Defining Network Management
10.2.1 Network Elements and Characteristics10.2.2 Monitoring and Metering10.2.3 Monitoring for Event Notification10.2.4 Monitoring for Metrics and Planning10.2.5 Generating the Characteristics Set
10.3 Designing with Manageable Resources
10.3.1 Instrumentation Methods
10.4 Network Mangement Architecture
10.4.1 In-Band/Out-of-Band Monitoring10.4.2 Centralized/Distributed Monitoring10.4.3 Capacity and Delay Requirements10.4.4 Checks and Balances in Monitoring10.4.5 Flows of Management Data10.4.6 Configuration of Network Management
10.5 Security
10.5.1 Security Policies10.5.2 Security Risk Analysis
10.6 Security Mechanisms
10.6.1 Physical Security10.6.2 Security Awareness10.6.3 User Authentication10.6.4 Packet Filters10.6.5 Application Security Mechanisms10.6.6 Encryption10.6.7 Firewalls10.6.8 Security and System Components
10.7 Security Examples
10.7.1 External Firewall10.7.2 Internal Firewall10.7.3 Distributed Host Security
10.8 Network Management and Security Plans
10.8.1 Evaluating and Selecting Resources10.8.2 Evaluating Trade-Offs in Architectures10.8.3 Integration with the Network Design10.8.4 Risk Analysis and Contingency Planning for the Design
10.9 Case Study10.10 Concluding RemarksSuggested Further ReadingExercises

11.1 Introduction to Physical Design11.2 Evaluating Cable Plant Design Options
11.2.1 Wiring in a Campus/MAN Environment11.2.2 Wiring in a Building Environment11.2.3 Choosing a Central Wiring Location11.2.4 Environmental Components
11.3 Network Equipment Placement
11.3.1 Hub Placement11.3.2 Router Placement11.3.3 Switch Placement11.3.4 Circuit-Level Equipment Placement
11.4 Diagramming the Physical Design
11.4.1 Maintenance of Diagrams11.4.2 Coding Schemes
11.5 Diagramming Worksheets11.6 Case Study11.7 Concluding RemarksSuggested Further ReadingExercises

12.1 Introduction to Addressing and Routing12.2 Establishing Routing Flows in the Design Environment
12.2.1 Functional Areas12.2.2 Identifying Boundaries12.2.3 Boundaries and Routing Flows
12.3 Manipulating Routing Flows
12.3.1 Default Route Propagation12.3.2 Route Filtering12.3.3 Route Aggregation12.3.4 Peering12.3.5 Policies and Policy Enforcement
12.4 Developing an Addressing Strategy
12.4.1 Background12.4.2 Subnetting12.4.3 Variable-Length Subnetting12.4.4 Supernetting12.4.5 Applying Addressing Strategies
12.5 Developing a Routing Strategy
12.5.1 Protocol Analysis12.5.2 Choosing and Applying Routing Protocols
12.6 Case Study12.7 Concluding RemarksSuggested Further ReadingExercises