Foreword xvi Introduction xvii Chapter 1 Introduction to Cisco Wide Area Application Services (WAAS) 3 Understanding Application Performance Barriers 3 Layer 4 Through Layer 7 4 Network Infrastructure 8 Introduction to Cisco WAAS 15 WAN Optimization 17 Application Acceleration 23 Other Features 29 Summary 31 Chapter 2 Cisco Wide Area Application Engine (WAE) Family 33 Cisco WAE Product Architecture 33 Disk Encryption 34 Central Management Subsystem 35 Interface Manager 35 Reporting Facilities 35 Network Interception and Bypass Manager 36 Application Traffic Policy Engine 36 Hardware Family 38 Router-Integrated Network Modules 38 Appliances 40 Licensing 42 Performance and Scalability Metrics 42 Device Memory 43 Disk Capacity 44 Number of Optimized TCP Connections 46 WAN Bandwidth and LAN Throughput 46 Number of Peers and Fan-Out 47 Number of Devices Managed 48 Summary 49 Chapter 3 Planning, Discovery, and Analysis 51 Planning Overview 51 Planning Overview Checklist 52 Requ irements Collection and Analysis 52 Site Information 54 Site Types 54 User Population 55 Physical Environment 55 Site Information Checklist 56 Network Infrastructure 56 WAN Topology 56 Remote Office Topology 59 Data Center Topology 60 Traffic Flows 62 Network Infrastructure Checklist 64 Application Characteristics 64 Application Requirements Checklist 65 File Services Requirements 65 Advanced Features 66 File Services Utilization 66 File Services Requirements Checklist 67 Platform Requirements 67 Platform Requirements Checklist 67 Scalability Requirements 67 Scalability Requirements Checklist 67 Availability Requirements 68 Availability Checklist 68 Management Requirements 68 SNMP Trap/Inform Routing 69 SNMP Community Strings 69 Syslog Servers 70 Management Requirements Checklist 70 Security Requirements 70 Security Requirements Checklist 72 Summary 73 Chapter 4 Network Integration and Interception 75 Interface Connectivity 75 Link Aggregation Using EtherChannel 78 Using the Standby Interface Feature 82 Interception Techniques and Protocols 86 Web Cache Communication Protocol 86 Policy-Based Routing 103 Inline Interception 105 Content Switching 109 Application Control Engine 109 Egress Methods for Intercepted Connections 111 Network Integration Best Practices 114 Summary 115 Chapter 5 Branch Office Network Integration 117 In-Path Deployment 117 Nonredundant Branch Office 118 Redundant Branch Office 122 Serial Clustering 125 Off-Path Deployment 127 Small to Medium-Sized Nonredundant Branch Office 127 Large Nonredundant Branch Office 134 Off-Path Redundant Topology 141 Policy-Based Routing Interception 158 Cisco IOS Firewall Integration 161 Summary 163 Chapter 6 Data Center Network Integration 165 Data Center Placement 165 Deployment Solutions 174 WCCP 175 Content Switching 186 Scaling Transparent Interception 192 WCCP Scalability 192 Application Control Engine Scalability 198 Firewall Integration 199 Summary 205 Chapter 7 System and Device Management 207 System and Device Management Overview 207 Initial Setup Script and Device Setup 208 Command-Line Interface 212 Central Manager Overview 213 Centralized Management System Service 216 Device Registration and Groups 219 Device Activation 220 Device Groups 222 <p align