Book description
The complete guide to Cisco® IWAN: features, benefits, planning, and deployment
Using Cisco Intelligent WAN (IWAN), businesses can deliver an uncompromised experience, security, and reliability to branch offices over any connection. Cisco IWAN simplifies WAN design, improves network responsiveness, and accelerates deployment of new services. Now, there’s an authoritative single-source guide to Cisco IWAN: all you need to understand it, design it, and deploy it for maximum value.
In Cisco Intelligent WAN (IWAN), leading
Cisco experts cover all key IWAN technologies and components,
addressing issues ranging from visibility and provisioning
to troubleshooting and optimization. They offer extensive practical
guidance on migrating to IWAN from your existing WAN
infrastructure.
This guide will be indispensable for all experienced network professionals who support WANs, are deploying Cisco IWAN solutions, or use related technologies such as DMVPN or PfR.
Deploy Hybrid WAN connectivity to increase WAN capacity and improve application performance
Overlay DMVPN on WAN transport to simplify operations, gain transport independence, and improve VPN scalability
Secure DMVPN tunnels and IWAN routers
Use Application Recognition to support QoS, Performance Routing (PfR), and application visibility
Improve application delivery and WAN efficiency via PfR
Monitor hub, transit, and branch sites, traffic classes, and channels
Add application-level visibility and per-application monitoring to IWAN routers
Overcome latency and bandwidth inefficiencies that limit application performance
Use Cisco WAAS to customize each location’s optimizations, application accelerations, and virtualization
Smoothly integrate Cisco WAAS into branch office network infrastructure
Ensure appropriate WAN application responsiveness and experience
Improve SaaS application performance with Direct Internet Access (DIA)
Perform pre-migration tasks, and prepare your current WAN for IWAN
Migrate current point-to-point and multipoint technologies to IWAN
Table of contents
- About This E-Book
- Title Page
- Copyright Page
- About the Authors
- About the Technical Reviewers
- Dedications
- Acknowledgments
- Contents at a Glance
- Contents
- Icons Used in This Book
- Command Syntax Conventions
- Foreword
- Introduction
- Part I: Introduction to IWAN
-
Part II: Transport Independent Design
- Chapter 2. Transport Independence
-
Chapter 3. Dynamic Multipoint VPN
- Generic Routing Encapsulation (GRE) Tunnels
- Next Hop Resolution Protocol (NHRP)
- Dynamic Multipoint VPN (DMVPN)
- DMVPN Configuration
- Spoke-to-Spoke Communication
- Problems with Overlay Networks
- IP NHRP Authentication
- Unique IP NHRP Registration
- DMVPN Failure Detection and High Availability
- DMVPN Dual-Hub and Dual-Cloud Designs
- IWAN DMVPN Sample Configurations
- Sample IWAN DMVPN Transport Models
- Backup Connectivity via Cellular Modem
- IWAN DMVPN Guidelines
- Troubleshooting Tips
- Summary
- Further Reading
-
Chapter 4. Intelligent WAN (IWAN) Routing
- Routing Protocol Overview
- Topology
- WAN Routing Principles
- EIGRP for IWAN
-
Border Gateway Protocol (BGP)
- BGP Routing Logic
- Base Configuration
- BGP Neighbor Sessions
- Default Route Advertisement into BGP
- Routes Learned via DMVPN Tunnel Are Always Preferred
- Branch Router Configuration
- Changing BGP Administrative Distance
- Route Advertisement on DMVPN Hub Routers
- Traffic Steering
- Complete BGP Configuration
- Advanced BGP Site Selection
- FVRF Transport Routing
- Multicast Routing
- Summary
- Further Reading
- Chapter 5. Securing DMVPN Tunnels and Routers
-
Part III: Intelligent Path Control
-
Chapter 6. Application Recognition
- What Is Application Recognition?
- What Are the Benefits of Application Recognition?
- NBAR2 Application Recognition
- NBAR2 Application ID, Attributes, and Extracted Fields
- NBAR2 Operation and Functions
- Custom Applications and Attributes
- NBAR2 State with Regard to Device High Availability
- Encrypted Traffic
- NBAR2 Interoperability with Other Services
- NBAR2 Protocol Discovery
- NBAR2 Visibility Dashboard
-
NBAR2 Protocol Packs
- Release and Download of NBAR2 Protocol Packs
- NBAR2 Protocol Pack License
- Application Customization
- NBAR2 Protocol Pack Types
- NBAR2 Protocol Pack States
- Identifying the NBAR2 Software Version
- Verifying the Active NBAR2 Protocol Pack
- Loading an NBAR2 Protocol Pack
- NBAR2 Taxonomy File
- Protocol Pack Auto Update
-
Validation and Troubleshooting
- Verify the Software Version
- Check the Device License
- Verifying That NBAR2 Is Enabled
- Verifying the Active NBAR2 Protocol Pack
- Checking That Policies Are Applied Correctly
- Reading Protocol Discovery Statistics
- Granular Traffic Statistics
- Discovering Generic and Unknown Traffic
- Verifying the Number of Flows
- Summary
- Further Reading
- Chapter 7. Introduction to Performance Routing (PfR)
- Chapter 8. PfR Provisioning
- Chapter 9. PfR Monitoring
- Chapter 10. Application Visibility
-
Chapter 6. Application Recognition
-
Part IV: Application Optimization
- Chapter 11. Introduction to Application Optimization
- Chapter 12. Cisco Wide Area Application Services (WAAS)
- Chapter 13. Deploying Application Optimizations
-
Part V: QoS
- Chapter 14. Intelligent WAN Quality of Service (QoS)
-
Part VI: Direct Internet Access
-
Chapter 15. Direct Internet Access (DIA)
- Guest Internet Access
- Guest Access Quality of Service (QoS)
- Guest Access Web-Based Acceptable Use Policy
- Internal User Access
- Fully Specified Static Default Route
- Verification of Internet Connectivity
- Network Address Translation (NAT)
- Policy-Based Routing (PBR)
- Internal Access Zone-Based Firewall (ZBFW)
- Cloud Web Security (CWS)
- Baseline Configuration
- Outbound Proxy
- WAAS and WCCP Redirect
- Prevention of Internal Traffic Leakage to the Internet
- Summary
- References in this Chapter
-
Chapter 15. Direct Internet Access (DIA)
-
Part VII: Migration
- Chapter 16. Deploying Cisco Intelligent WAN
- Part VIII: Conclusion
- Appendix A. Dynamic Multipoint VPN Redundancy Models
- Appendix B. IPv6 Dynamic Multipoint VPN
- Index
- Code Snippets
Product information
- Title: Cisco Intelligent WAN (IWAN)
- Author(s):
- Release date: October 2016
- Publisher(s): Cisco Press
- ISBN: 9780134423760
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