WAASBr11.pdf - Enterprise Branch Wide Area Application Services Design Guide(Version 1.1 This document discusses design and deployment considerations in

WAASBr11.pdf - Enterprise Branch Wide Area Application...

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Americas Headquarters: © 2007 Cisco Systems, Inc. All rights reserved. Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Enterprise Branch Wide Area Application Services Design Guide (Version 1.1) This document discusses design and deployment considerations in deploying wide area application services (WAAS) over branch architectures. It serves as a supplement to the Cisco enterprise branch architecture documents, which can be found at . Contents Introduction 3 Intended Audience 3 Updates to Version 1.1 4 Caveats and Limitations 4 Assumptions 4 Best Practices and Known Limitations 4 WAAS Known Limitations 5 WAAS Technology Overview 5 WAAS Optimization Path 8 WAAS Branch Design Considerations 11 WAAS Placement over Branch Topologies 11 Branch 1—Extended Services Branch 12 Branch 2—Consolidated Branch 13 Branch LAN Services 14 LAN Services—Generic Considerations 14 LAN Segmentation over Branch Topologies 15 LAN Services—Branch 1 17 LAN Services—Branch 2 17 WAN Services 18
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2 Enterprise Branch Wide Area Application Services Design Guide (Version 1.1) OL-12945-01 Contents WAN Services—Generic Considerations 18 WAN Services—Branch 1 21 WAN Services—Branch 2 21 High Availability 21 WAAS-level HA 21 Branch LAN HA 22 Branch WAN HA 22 Single- and Dual-Tier Profiles 23 Security Services 24 Infrastructure Protection 24 Secure Connectivity 24 Threat Defense 25 Security Services —Branch 1 Considerations 30 Security Services—Branch 2 Considerations 30 Quality of Service 32 QoS—Generic Considerations 32 IP Communication Services 35 Cisco IP Phone Services 36 Voice Services—Remote Branch 1 36 Voice Services—Remote Branch 2 36 Measuring Optimizations and Performance Improvements 37 User-Centric Metrics 37 NetFlow 37 IP Service Level Agreements 42 WAAS-Centric Performance Metrics 43 Branch 1 Considerations 45 Branch 2 Considerations 46 Miscellaneous Operations 46 Synchronization and Timing 46 Summary 46 Appendix A—WAAS-IOS Branch Interoperability Matrix 47 Appendix B—Example Test Configuration 48 Appendix C—Test Bed Configuration 50 Branch1 Router (FSB4-3825-1) 50 Branch1 First WAE (FSB4-WBE1) 56 Branch 1 Second WAE (FSB4-WBE3) 57 Branch 1 Switch (FSB4-3548-1) 59 Branch 2 Router 61 Branch 2 Edge WAE 67
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3 Enterprise Branch Wide Area Application Services Design Guide (Version 1.1) OL-12945-01 Introduction Appendix D—Additional References 69 Introduction As enterprise businesses extend their size and reach to remote locations, guaranteeing application delivery to end users becomes increasingly important. In the past, remote locations contained their own application file servers and could provide LAN access to data and applications within the remote location or branch. Although this solution guarantees application performance and availability, it also means more devices to manage, increased total cost of ownership, regulatory compliance for data archival, and lack of anywhere, anytime application access. Placing application networking servers
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