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Cisco ACI : zero to hero : a comprehensive guide to Cisco ACI design, implementation, operation, and troubleshooting / Jan Janovic.

Janovic, Jan.
2022
TK5105.52 .J36 2022
Available Online
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Title
Cisco ACI : zero to hero : a comprehensive guide to Cisco ACI design, implementation, operation, and troubleshooting / Jan Janovic.
Author
Janovic, Jan.
ISBN
9781484288382 (electronic bk.)
1484288386 (electronic bk.)
1484288378
9781484288375
DOI
https://doi.org/10.1007/978-1-4842-8838-2
Published
Berkeley, CA : Apress L. P., 2022.
Language
English
Description
1 online resource (625 p.)
Item Number
10.1007/978-1-4842-8838-2 doi
Call Number
TK5105.52 .J36 2022
Dewey Decimal Classification
004.65
Summary
It doesn't matter if you are completely new to Cisco ACI or you already have some experience with the technology, this book will guide you through the whole implementation lifecycle and provide you with a comprehensive toolset to become confident in any ACI-related task. In the beginning, it's very important to build strong fundamental knowledge about Cisco ACI components. We'll go through underlay networking based on Nexus 9000 switches and describe the APIC controller cluster acting as the management plane of ACI. By building Access Policies, you'll see how to optimally connect servers, storage, routers, switches, or L4-L7 service devices to ACI. Then we'll properly design and implement Logical Application Policies. You will understand all the fabric forwarding behavior when using different ACI settings and architectures while getting a toolset on how to verify and troubleshoot eventual problems. This book also covers external L2 and L3 connectivity in ACI, more advanced features like integration with virtualization hypervisors and Kubernetes, service chaining of L4-L7 devices using Service Graphs, or practical approach to using REST API automation based on Python and Ansible/Terraform. Cisco ACI: Zero to Hero can additionally be used as a valuable source of theoretical and practical knowledge for all candidates preparing for CCIE DC v3.0 Written or Lab exams. What You'll Learn Understand network evolution and Cisco ACI components Underlay ACI networking based on Nexus 9000 switches, APIC controllers, and Application Policy Model Integrate ACI with virtualization hypervisors and Kubernetes Dynamically and seamlessly include L4-L7 service devices in communication between ACI endpoints Build ACI Anywhere: ACI Multi-Tier, Stretched Fabric, Multi-POD, Multi-Site, and Remote Leaf Utilize ACI REST API with Python, related Cobra SDK, Ansible or Terraform, to develop automation and scripts on top of the ACI platform Who This Book Is For Network engineers, architects, network developers, administrators or NOC technicians.
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Cisco ACI: Zero to Hero
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Intro
Table of Contents
About the Author
About the Technical Reviewer
Acknowledgments
Introduction
Chapter 1: Introduction: Datacenter Network Evolution
From Traditional to Software-Defined Networking
Traditional Three-Tier Network Architecture
Let's Go Virtual
Transition to Leaf-Spine Architecture and VXLAN
Need for Network Automation
Cisco Application Centric Infrastructure (ACI)
Summary
Chapter 2: ACI Fundamentals: Underlay Infrastructure
Cisco Nexus 9000 and CloudScale ASICs
CloudScale ASIC Architecture
CloudScale ASIC Buffering

Nexus 9500: Modular Chassis Switches
Chassis-Specific Components
Fabric Module
Fan Module
Common Chassis Components
Switch Supervisor Engine
System Controller
Power Supply Unit
Line Cards
Nexus 9300: Fixed Switches
ACI Underlay Networking
ACI Leaf-Spine Fabric Topology
ACI Underlay Cabling Options
ACI Control Plane and Data Plane Overview
ACI Architecture
Multi-Tier ACI Fabric
ACI Stretched Fabric
ACI Multi-Pod Architecture
Inter-Pod Network (IPN)
ACI Multi-Site Architecture
Nexus Dashboard Orchestrator
Cloud ACI
ACI Remote Leaf

Application Policy Infrastructure Controller
Hardware Equipment
Connecting APIC Nodes to the Network
APIC High Availability
ACI Licensing
High-Level ACI Design
Summary
Chapter 3: Fabric Initialization and Management
Nexus 9000 in ACI Switch Mode
Conversion From NX-OS to ACI Mode
APIC Cluster Initialization
Graphical User Interface Overview
Fabric Discovery and Registration
ACI Switch Discovery
Multi-Pod Fabric Discovery
ACI Switch Discovery Troubleshooting
ACI Management Access
Fabric Out-of-Band Configuration
Fabric In-Band Configuration

APIC Connectivity Preference
Initial and Best Practice Fabric Configuration
Network Time Protocol
Internal ACI MP-BGP
Domain Name System
Securing Fabric Management Access
Fabric-Wide Best Practice Configuration
ACI Fabric Monitoring and Backup
Simple Network Management Protocol
Logging in ACI Syslog
Faults
Events
Audit Logs
Session Logs
Syslog Configuration
NetFlow
NetFlow Exporter
NetFlow Record
NetFlow Monitor
ACI Fabric Backup
ACI Multi-Pod Configuration
Inter-POD Network Configuration
Nexus 9000 Features
IPN VRF Instance

OSPF/eBGP Process
L3 IPN Interfaces Facing ACI Spines
PIM Bidir Multicast Configuration
DHCP Relay Agent Configuration
Quality of Service for ACI Control-Plane in IPN
APIC Multi-Pod Wizard
ACI Multi-Pod Verification and Troubleshooting
Summary
Chapter 4: ACI Fundamentals: Access Policies
Switch Policies
Switch Protocol Policies and vPC
Switch Policy Group
Switch Profile
Interface Policies
Interface Protocol Policy
Interface Policy Group
Interface Profile
Attachable Access Entity Profile
Physical and External Domains

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