IPv6 for Enterprise Networks

IPv6 for Enterprise Networks

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IPv6 for Enterprise Networks The practical guide to deploying IPv6 in campus, WAN/branch, data center, and virtualized environments Shannon McFarland, CCIE(R) No. 5245 Muninder Sambi, CCIE No. 13915 Nikhil Sharma, CCIE No. 21273 Sanjay Hooda, CCIE No. 11737 IPv6 for Enterprise Networks brings together all the information you need to successfully deploy IPv6 in any campus, WAN/branch, data center, or virtualized environment. Four leading Cisco IPv6 experts present a practical approach to organizing and executing your large-scale IPv6 implementation. They show how IPv6 affects existing network designs, describe common IPv4/IPv6 coexistence mechanisms, guide you in planning, and present validated configuration examples for building labs, pilots, and production networks. The authors first review some of the drivers behind the acceleration of IPv6 deployment in the enterprise. Next, they introduce powerful new IPv6 services for routing, QoS, multicast, and management, comparing them with familiar IPv4 features and behavior. Finally, they translate IPv6 concepts into usable configurations. Up-to-date and practical, IPv6 for Enterprise Networks is an indispensable resource for every network engineer, architect, manager, and consultant who must evaluate, plan, migrate to, or manage IPv6 networks. Shannon McFarland, CCIE No. 5245, is a Corporate Consulting Engineer for Cisco serving as a technical consultant for enterprise IPv6 deployment and data center design with a focus on application deployment and virtual desktop infrastructure. For more than 16 years, he has worked on large-scale enterprise campus, WAN/branch, and data center network design and optimization. For more than a decade, he has spoken at IPv6 events worldwide, including Cisco Live. Muninder Sambi, CCIE No. 13915, is a Product Line Manager for Cisco Catalyst 4500/4900 series platform, is a core member of the Cisco IPv6 development council, and a key participant in IETF's IPv6 areas of focus. Nikhil Sharma, CCIE No. 21273, is a Technical Marketing Engineer at Cisco Systems where he is responsible for defining new features for both hardware and software for the Catalyst 4500 product line. Sanjay Hooda, CCIE No. 11737, a Technical Leader at Cisco, works with embedded systems, and helps to define new product architectures. His current areas of focus include high availability and messaging in large-scale distributed switching systems. n Identify how IPv6 affects enterprises n Understand IPv6 services and the IPv6 features that make them possible n Review the most common tranisition mechanisms including dual-stack (IPv4/IPv6) networks, IPv6 over IPv4 tunnels, and IPv6 over MPLS n Create IPv6 network designs that reflect proven principles of modularity, hierarchy, and resiliency n Select the best implementation options for your organization n Build IPv6 lab environments n Configure IPv6 step-by-step in campus, WAN/branch, and data center networks n Integrate production-quality IPv6 services into IPv4 networks n Implement virtualized IPv6 networks n Deploy IPv6 for remote access n Manage IPv6 networks efficiently and cost-effectively This book is part of the Networking Technology Series from Cisco Press(R), which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.show more

Product details

  • Hardback | 400 pages
  • 185.42 x 233.68 x 27.94mm | 816.46g
  • Pearson Education (US)
  • Cisco Press
  • Indianapolis, United States
  • English
  • 1587142279
  • 9781587142277
  • 701,057

About Shannon McFarland

Shannon McFarland , CCIE No. 5245, is a corporate consulting engineer for Cisco, working as a technical consultant for enterprise IPv6 deployment and data center design with a focus on application deployment and virtual desktop infrastructure. Over the last 16 years, he has worked on large-scale enterprise campus and WAN/branch network design, data center design and optimization for Microsoft operating systems and server applications, as well as design and optimization of virtual desktop infrastructure deployments. For the past 10 years, Shannon has been a frequent speaker at IPv6 events worldwide (notably Cisco Live [formerly Networkers]), IPv6 summits, and other industry events. He has authored many papers and Cisco Validated Designs (CVD) on IPv6, IP Multicast, Microsoft Exchange, VMware View, and other applications, as well as contributed to many Cisco Press books. Prior to his time at Cisco, Shannon worked as a consultant for a value-added reseller and also as a network engineer in the healthcare industry. Shannon lives with his wife and children in Castle Rock, CO. Muninder Sambi, CCIE No. 13915, is a manager of product marketing for the Cisco Catalyst 4500/4900 series platform. As a product line manager, he is responsible for defining product strategies on the multibillion- dollar Catalyst 4500 and 4900 series platforms, which include next-generation product architectures both for user access in Campus and Server access in the Data Center. Prior to this role, Muninder played a key role in defining the long-term Software and Services strategy for Cisco's modular switching platforms (Catalyst 6500 and 4500/4900 series) including a focus on IPv6 innovations. Some of these innovations enabled dual-stack IPv6 deployments in large enterprise and service provider networks. Muninder is also a core member of Cisco's IPv6 development council. Muninder has represented Cisco as part of multiple network design architecture reviews with large enterprise customers. Over the last 12+ years, Muninder has worked on multiple Enterprise Campus, WAN, and Data Center designs. Prior to working at Cisco, Muninder worked as a network consultant for one of India's leading network integrators and was responsible for designing and implementing LAN, WAN, and hosted Data Center networks. Muninder lives with his wife and children in Fremont, California. Nikhil Sharma, CCIE No. 21273, is a technical marketing engineer at Cisco, where he is responsible for defining new features, both hardware and software, for the Catalyst 4500 product line. Over the last 10 years, Nikhil has worked with various enterprise customers to design and troubleshoot both large and midsize campus and data center networks. Sanjay Hooda, CCIE No. 11737, is a technical leader at Cisco, where he works with embedded systems and helps define new product architectures. His current focus areas include high availability and messaging in large-scale distributed switching systems. Over the last 14 years, Sanjay's experience spans various areas, including SCADA (Supervisor Control and Data Acquisition), large-scale software projects, and enterprise campus and LAN, WAN, and data center network design.show more

Table of contents

Introduction xix Chapter 1 Market Drivers for IPv6 Adoption 1 IPv4 Address Exhaustion and the Workaround Options 2 IPv6 Market Drivers 3 IPv4 Address Considerations 4 Government IT Strategy 5 Infrastructure Evolution 5 Operating System Support 6 Summary of Benefits of IPv6 6 Commonly Asked Questions About IPv6 6 Does My Enterprise Need IPv6 for Business Growth? 6 Will IPv6 Completely Replace IPv4? 9 Is IPv6 More Complicated and Difficult to Manage and Deploy Compared to IPv4? 9 Does IPv6 continue to allow my enterprise network to be multihomed to several service providers? 10 Is quality of service better with IPv6? 10 Is IPv6 automatically more secure than IPv4? 10 Does the lack of NAT support in IPv6 reduce security? 10 IPv6 in the IETF 11 Enterprise IPv6 Deployment Status 12 Summary 15 Additional References 15 Chapter 2 Hierarchical Network Design 17 Network Design Principles 18 Modularity 19 Hierarchy 21 Resiliency 24 Enterprise Core Network Design 24 Enterprise Campus Network Design 25 Distribution Layer 25 Layer 2 Access Design 25 Routed Access Design 27 Virtual Switching System Distribution Block 28 Comparing Distribution Block Designs 28 Access Layer 29 Enterprise Network Services Design 29 Enterprise Data Center Network Design 31 Aggregation Layer 31 Access Layer 32 Data Center Storage Network Design 33 Collapsed Core Topology 35 Core Edge Topology 35 Enterprise Edge Network Design 37 Headquarters Enterprise Edge Network Components 38 Headquarters Enterprise Edge Network Design 39 Branch Network Architecture 39 Branch Edge Router Functionality 41 Typical Branch Network Design 42 Summary 43 Additional References 43 Chapter 3 Common IPv6 Coexistence Mechanisms 45 Native IPv6 47 Transition Mechanisms 48 Dual-Stack 48 IPv6-over-IPv4 Tunnels 49 Manually Configured Tunnel 51 IPv6-over-IPv4 GRE Tunnel 53 Tunnel Broker 54 6to4 Tunnel 55 Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) 57 IPv6 over MPLS 58 IPv6 over Circuit Transport over MPLS 58 IPv6 Using IPv4 Tunnels on Customer Edge (CE) Routers 60 IPv6 MPLS with IPv4-Based Core (6PE/6VPE) 60 Protocol Translation/Proxy Mechanisms 62 NAT-PT 63 NAT64 64 Summary 64 Additional References 65 Chapter 4 Network Services 67 Multicast 67 IPv6 Multicast Addressing 69 Multicast Listener Discovery (MLD) for IPv6 71 Multicast Routing: Protocol Independent Multicast (PIM) 72 PIM Sparse Mode (PIM-SM) 73 PIM Source Specific Multicast (PIM-SSM) 74 Bidirectional PIM (PIM-Bidir) 76 Quality of Service (QoS) 76 Differences Between IPv6 and IPv4 QoS 76 IPv6 Extension Headers 78 IPv4 and IPv6 Coexistence 79 IPv6 Routing 80 OSPFv3 80 EIGRPv6 83 IS-IS 85 Single Topology 86 Multitopology 86 Configuring IS-ISv6 86 BGP 87 Multiprotocol BGP for IPv6 88 Summary 89 Additional References 89 Chapter 5 Planning an IPv6 Deployment 91 Determining Where to Begin 91 Benefit Analysis 92 Cost Analysis 93 Risks 94 Business Case 94 Transition Team 95 Training 96 Planning a Pilot 96 Assessment 96 Design 97 IPv6 Addressing Plan 97 Transition Mechanisms 98 Network Services 98 Security 98 New Features in IPv6 99 Scalability and Reliability 99 Service Level Agreements 99 Lessons Learned and Implementation 99 Client/Server IPv6 Migration Scenarios 100 IPv6 Core Deployment: "Start at the Core" 101 Localized IPv6 Server-Side Deployment 102 Client-Side Deployment 102 Client/Server Deployment: Dual-Stack Configuration 103 Planning Address Allocation 104 Summary 104 Additional References 105 Chapter 6 Deploying IPv6 in Campus Networks 107 Campus Deployment Models Overview 107 Dual-Stack Model 108 Benefits and Drawbacks of the DSM 108 DSM Topology 109 DSM-Tested Components 109 Hybrid Model 109 Benefits and Drawbacks of the HM 114 HM Topology 115 HM-Tested Components 115 Service Block Model 115 Benefits and Drawbacks of the SBM 116 SBM Topology 117 SBM-Tested Components 119 General Campus IPv6 Deployment Considerations 119 Addressing 119 Physical Connectivity 120 VLANs 121 Routing 121 High Availability 122 QoS 123 Security 125 Making Reconnaissance More Difficult Through Complex Address Assignment 126 Controlling Management Access to the Campus Switches 126 IPv6 Traffic Policing 128 Using Control Plane Policing (CoPP) 129 Controlling Ingress Traffic from the Access Layer 130 First-Hop Security 130 Blocking the Use of Microsoft Teredo 131 Multicast 131 Network Management 132 Address Management 132 Scalability and Performance 135 Scalability and Performance Considerations for the DSM 135 Scalability and Performance Considerations for the HM 136 Scalability and Performance Considerations for the SBM 137 Implementing the Dual-Stack Model 137 Network Topology 138 Physical/VLAN Configuration 140 Routing Configuration 143 First-Hop Redundancy Configuration 145 QoS Configuration 147 Multicast Configuration 149 Routed Access Configuration 151 Cisco Virtual Switching System with IPv6 155 VSS Configuration 157 VSS Physical Interface IPv6 Configuration 160 Implementing the Hybrid Model 161 Network Topology 161 Physical Configuration 162 Tunnel Configuration 163 QoS Configuration 171 Infrastructure Security Configuration 173 Implementing the Service Block Model 174 Network Topology 174 Physical Configuration 176 Tunnel Configuration 178 QoS Configuration 180 Summary 181 Additional References 182 Chapter 7 Deploying Virtualized IPv6 Networks 185 Virtualization Overview 186 Virtualization Benefits 186 Virtualization Categories 186 Network Virtualization 188 Switch Virtualization 188 Network Segmentation 188 Virtual Routing and Forwarding (VRF-Lite) 189 Transporting IPv6 Across the MPLS Backbone 193 Virtual Private LAN Services 211 Network Services Virtualization 212 Virtualized Firewall 213 Cisco Adaptive Security Appliance (ASA) Virtualization Architecture 213 Understanding Virtual Contexts on the Cisco ASA 214 Configuring Multiple Contexts on the Cisco ASA 215 Configuring IPv6 Access Lists 219 Desktop Virtualization 220 IPv6 and Desktop Virtualization 221 Desktop Virtualization Example: Oracle Sun Ray 222 Server Virtualization 223 Summary 223 Additional References 224 Chapter 8 Deploying IPv6 in WAN/Branch Networks 225 WAN/Branch Deployment Overview 226 Single-Tier Profile 226 Dual-Tier Profile 227 Redundancy 228 Scalability 228 WAN Transport 228 Multitier Profile 228 General WAN/Branch IPv6 Deployment Considerations 229 Addressing 230 Physical Connectivity 230 VLANs 231 Routing 232 High Availability 232 QoS 233 Security 233 Multicast 236 Management 236 Scalability and Performance 238 WAN/Branch Implementation Example 238 Tested Components 239 Network Topology 240 WAN Connectivity 240 Branch LAN Connectivity 241 Firewall Connectivity 241 Head-End Configuration 242 Branch WAN Access Router Configuration 245 Branch Firewall Configuration 247 EtherSwitch Module Configuration 250 Branch LAN Router Configuration 252 WAN/Branch Deployment over Native IPv6 254 Summary 258 Additional References 258 Chapter 9 Deploying IPv6 in the Data Center 261 Designing and Implementing a Dual-Stack Data Center 262 Data Center Access Layer 264 Configuring Access Layer Devices for IPv6 265 NIC-Teaming Considerations 267 Data Center Aggregation Layer 269 Bypassing IPv4-Only Services at the Aggregation Layer 269 Deploying an IPv6-Only Server Farm 271 Supporting IPv4-Only Servers in a Dual-Stack Network 271 Deploying IPv6-Enabled Services at the Aggregation Layer 272 Data Center Core Layer 279 Implementing IPv6 in a Virtualized Data Center 279 Implementing IPv6 for the SAN 281 FCIP 281 iSCSI 284 Cisco MDS Management 285 Designing IPv6 Data Center Interconnect 286 Design Considerations: Dark Fibre, MPLS, and IP 287 DCI Services and Solutions 288 Summary 289 Additional References 289 Chapter 10 Deploying IPv6 for Remote Access VPN 291 Remote Access for IPv6 Using Cisco AnyConnect 292 Remote Access for IPv6 Using Cisco VPN Client 297 Summary 301 Additional References 301 Chapter 11 Managing IPv6 Networks 303 Network Management Framework: FCAPS 304 Fault Management 305 Configuration Management 305 Accounting Management 306 Performance Management 306 Security Management 306 IPv6 Network Management Applications 307 IPv6 Network Instrumentation 308 Network Device Management Using SNMP MIBs 308 Relevance of IPv6 MIBs 311 IPv6 Application Visibility and Monitoring 312 Flexible NetFlow 312 NetFlow Versions 313 NetFlow version 9 (Flexible NetFlow [FnF]) 314 IPFIX 320 IP SLA for IPv6 322 Automation Using Flexible Programming with Embedded Event Manager 328 IPv6 Network Management 330 Monitoring and Reporting 331 SNMP over IPv6 331 Syslog over IPv6 332 ICMPv6 332 Network Services 333 TFTP 333 NTP 333 Access Control and Operations 334 Telnet 334 SSH 335 HTTP 336 IPv6 Traffic-Monitoring Tools 337 SPAN, RSPAN, and ERSPAN 337 Configuring SPAN Types 338 Mini Protocol Analyzer 339 VLAN Access Control List (VACL) Capture 340 Summary 341 Additional References 342 Chapter 12 Walk Before Running: Building an IPv6 Lab and Starting a Pilot 343 Sample Lab Topology 344 Sample Lab Addressing 347 Configuring the Networking Devices 348 Operating System, Application, and Management Deployment 348 Moving to a Pilot 359 Summary 360 Additional References 360 Index 361show more

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