مسیر یابی منطقی NSX-T: تقویت درک شما برای افزایش موفقیتتان

This book is a one-stop guide for IT professionals with a background in traditional and software-defined networks looking to expand or hone their skill set and has been developed through a combination of extensive research and testing in both development and production environments. It provides reliable information on a fundamental component of NSX-T, logical routing. A comprehensive understanding of this capability will help IT professionals with design, implementation, troubleshooting, and enhancements. The book starts with an introduction to the foundational components of the NSX-T platform and how NSX-T fits into the software-defined data center. The focus then moves to tunnel endpoints, which is a critical aspect of the NSX-T platform, and the differences between overlays and underlays are explained. Once the basics are covered, it provides a detailed description of how NSX-T components communicate. Next, the book introduces logical routing and its componentsand provides a better understanding of how these components function with one another. Several packet walks are illustrated to explain NSX-T logical routing behavior in different scenarios. After mastering logical routing, it explains how NSX-T ensures data plane availability, which is explored at various layers of NSX-T. Finally, the book explores the concepts and intricacies of routing into and out of the NSX-T environment. It deep dives into utilizing the Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Static Routing. What You Will Learn Know how VMware NSX-T endpoints communicate Understand how NSX-T logical routing works Know how NSX-T provides high availability for the data plane Understand how NSX-T operates with static and dynamic routing protocols Configure the platform Who This Book Is For Readers with an intermediate to advanced skill set who wish to further their knowledge, those who focus on datacenter technology, those planning to move to a software-defined datacenter to transform the way their current datacenter works, and anyone looking to learn about VMware NSX-T and how it operates Table of Contents About the Author About the Technical Reviewers Acknowledgments Introduction Chapter 1: Introduction The Modern-Day Software-Defined Data Center Software-Defined Datacenter Architecture Consolidated Software-Defined Datacenter Architecture Standard Software-Defined Datacenter Architecture Management Domain Workload Domain VMware NSX-T: SDDC Networking The Basics of NSX-T Management Plane NSX-T Manager Cluster Availability Management Plane Functionality Policy and Manager Mode Control Plane Data Plane Transport Nodes Transport Zones Tunnel Endpoints Summary Chapter 2: Tunnel Endpoints Overlay Networking What Is a Network Overlay? VLANs Differences Between VXLAN and GENEVE VXLAN GENEVE NSX-T Transport Node Communication Transport Node Types What Is a Tunnel Endpoint? Tunnel Endpoint Communication Routed Transport VLANs Overlay Communication on 2 pNIC Hosts Overlay Communication on 4 pNIC Hosts Inter-TEP Communication Tunnel Endpoint Configuration Tunnel Endpoint Configuration Prerequisites Add a Compute Manager Add Hosts to VDS Creating a Transport Zone Create Uplink Profiles Create IP Pool Transport Node Profiles Host Transport Node and TEP Configuration Deployment and Configuration Process Edge Transport Node and TEP Configuration Deployment and Configuration Process Tunnel Endpoint Packet Walk East-West Communication North-South Communication Tunnel Endpoint Failure Host TEP Failure Failover Order Load Balance Source and Load Balance Source MAC Edge TEP Failure Failover Order Load Balance Source Summary Chapter 3: Remote Tunnel Endpoints A Solution for Multiple Sites NSX-T Federation Components What Are Remote Tunnel Endpoints? NSX-T Federation Prerequisites Configuring RTEPs and NSX-T Federation Verifying RTEP Interface Configuration Using Command Line to Verify RTEP Configuration Summary Chapter 4: Logical Routing What Is Logical Routing? What Is an Optimally Configured Network? NSX-T Logical Components NSX-T Logical Routing Fundamentals Tier-0 Gateways Tier-1 Gateways Stateful Services NSX-T Routing Principles Logical Routing Architecture Single-tiered Routing Multi-tiered Routing Packet Flow Within the NSX-T Fabric East-West Logical Routing East-West Logical Routing Without Stateful Services East-West Logical Routing with Stateful Services Packet Flow from VM 1 to VM 3 Packet Flow from VM 3 to VM 1 North-South Logical Routing North-South Logical Routing Without Stateful Services Packet Flow from VM 1 to an External Utility Server Packet Flow from the Physical Network to VM 1 North-South Logical Routing with Stateful Services Packet Flow from VM 1 to the Utility Server Packet Flow from the Utility Server to VM 1 Logical Routing Between Sites Summary Chapter 5: Data Plane Availability Edge Cluster Deployment Considerations Defining Edge Nodes Edge Node Logical Routing Components Edge Node Wiring Edge Virtual Appliance Wiring Logical Interfaces Nested N-VDS Mapping the Interfaces Uplink Profiles Single TEP Interface Configuration Multi-TEP Interface Configuration Applying Uplink Profiles Single TEP Deployment Multi-TEP Deployment VDS Portgroup Uplink Configuration Uplink Failure Behavior Active/Unused Uplink Configuration Demonstrating an Uplink Failure Active-Standby Uplink Configuration Demonstrating Uplink Failure Active-Active Uplink Configuration Edge Virtual Appliance Placement Bare Metal Edge Node Wiring Physical NIC Failure Bare Metal Edge Node Placement Edge Failure Types Edge Node Status Service Router Uplink Failures Partial Uplink Failure Inter-SR iBGP Routing Complete Uplink Failure Bidirectional Forwarding Detection (BFD) BFD Usage Within the NSX-T Fabric Edge Node BFD Sessions Host Transport Node BFD Sessions BFD to the Physical Network Fabric Equal Cost Multipathing (ECMP) ECMP From the DR to SR ECMP from Tier-0 SR to the Physical Network Summary Chapter 6: Datacenter Routing Chapter Objectives Communication with the Physical Network BGP OSPF Static Routing NSX-T and BGP eBGP Peering with the Physical Fabric Typical NSX-T eBGP Topology Prefix Propagation Verifying Prefix Propagation Segments Created in NSX-T Prefixes Configured on the Leaf Switches Inter-SR iBGP Routing Loop Prevention iBGP Peering with the Physical Fabric Full Mesh Topology Prefix Propagation Verifying Prefix Propagation Segments Created in NSX-T Prefixes Configured on the Leaf Switches: BGP Split-Horizon Rule Inter-SR iBGP Routing Loop Prevention Policy Control Supported Topologies NSX-T and OSPF Network Type Broadcast Point-to-Point Link Areas, Route Types, and Cost Supported Areas Route Types and Cost Backbone and Non-backbone Areas NSSA Supported Topologies Recovering from Uplink Failures NSX-T and Static Routing Deterministic Peering Uplink Profile Transport Zone Segments Tier-0 Interface Creation Bidirectional Forwarding Detection (BFD) Unicast Reverse Path Forwarding (uRPF) uRPF in an Active-Active Topology ECMP Enabled All Paths Equal Preferred Path ECMP Disabled uRPF in an Active-Standby Topology ECMP Enabled All Paths Equal Preferred Path ECMP Disabled Summary Index This book is a one-stop guide for IT professionals with a background in traditional and software-defined networks looking to expand or hone their skill set and has been developed through a combination of extensive research and testing in both development and production environments. It provides reliable information on a fundamental component of NSX-T, logical routing. A comprehensive understanding of this capability will help IT professionals with design, implementation, troubleshooting, and enhancements. The book starts with an introduction to the foundational components of the NSX-T platform and how NSX-T fits into the software-defined data center. The focus then moves to tunnel endpoints, which is a critical aspect of the NSX-T platform, and the differences between overlays and underlays are explained. Once the basics are covered, it provides a detailed description of how NSX-T components communicate. Next, the book introduces logical routing and its components and provides a better understanding of how these components function with one another. Several packet walks are illustrated to explain NSX-T logical routing behavior in different scenarios. After mastering logical routing, it explains how NSX-T ensures data plane availability, which is explored at various layers of NSX-T. Finally, the book explores the concepts and intricacies of routing into and out of the NSX-T environment. It deep dives into utilizing the Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Static Routing. What You Will Learn Know how VMware NSX-T endpoints communicate Understand how NSX-T logical routing works Know how NSX-T provides high availability for the data plane Understand how NSX-T operates with static and dynamic routing protocols Configure the platform Who This Book Is For Readers with an intermediate to advanced skill set who wish to further their knowledge, those who focus on datacenter technology, those planning to move to a software-defined datacenter to transform the way their current datacenter works, and anyone looking to learn about VMware NSX-T and how it operates Follow this technical guide to know how logical routing works in NSX-T. You will learn about this fundamental component of NSX-T and develop a comprehensive understanding of its capability to help IT professionals with design, implementation, troubleshooting, and enhancements.The book starts with an introduction to the foundational components of the NSX-T platform and how NSX-T fits into the software-defined data center. The focus then moves to tunnel endpoints, which is a critical aspect of the NSX-T platform, and the differences between overlays and underlays are explained. Once the basics are covered, it provides a detailed description of how NSX-T components communicate.Next, the book introduces logical routing and its components and provides a better understanding of how these components function with one another. Several packet walks are illustrated to explain NSX-T logical routing behavior in different scenarios. After mastering logical routing, it explains how NSX-T ensures data plane availability, which is explored at various layers of NSX-T.Finally, the book explores the concepts and intricacies of routing into and out of the NSX-T environment. It deep dives into utilizing the Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Static Routing.What You Will Learn• Know how VMware NSX-T endpoints communicate• Understand how NSX-T logical routing works• Know how NSX-T provides high availability for the data plane• Understand how NSX-T operates with static and dynamic routing protocols• Configure the platformWho This Book Is ForReaders with an intermediate to advanced skill set who wish to further their knowledge, those who focus on datacenter technology, those planning to move to a software-defined datacenter to transform the way their current datacenter works, and anyone looking to learn about VMware NSX-T and how it operates