Network Programmability and Automation Fundamentals

HTTP Transactions 397

HTTP Messages 415

Resource Identification 431

Postman 436

HTTP and Bash 447

HTTP and Python 455

Summary 467

Chapter 8 Advanced HTTP 469

HTTP/1.1 Authentication 469

Transport Layer Security (TLS) and HTTPS 487

HTTP/2 503

Summary 508

Chapter 9 SSH 509

SSH Overview 509

Setting Up SSH 521

Enabling SSH on Cisco Devices 526

Secure File Transfer 540

Summary 551

References 551

Part V Encoding

Chapter 10 XML 553

XML Overview, History, and Usage 553

XML Syntax and Components 554

Making XML Valid 562

Navigating XML Documents 574

XML Stylesheet Language Transformations (XSLT) 578

Processing XML Files with Python 580

Summary 588

Chapter 11 JSON 591

JavaScript Object Notation (JSON) 591

JSON Schema Definition (JSD) 595

Summary 614

Chapter 12 YAML 615

YAML Structure 616

Handling YAML Data Using Python 626

Summary 637

Part VI Modeling

Chapter 13 YANG 639

A Data Modeling Primer 639

YANG Data Models 642

Types of YANG Modules 663

YANG Tools 673

Summary 688

Part VII Protocols

Chapter 14 NETCONF and RESTCONF 689

NETCONF 689

RESTCONF 739

Summary 779

Chapter 15 gRPC, Protobuf, and gNMI 781

Requirements for Efficient Transport 781

History and Principles of gRPC 782

gRPC as a Transport 784

The Protocol Buffers Data Format 786

Working with gRPC and Protobuf in Python 790

The gNMI Specification 798

The Anatomy of gNMI 799

Managing Network Elements with gNMI/gRPC 814

Summary 818

Chapter 16 Service Provider Programmability 819

The SDN Framework for Service Providers 819

Segment Routing (SR) 823

BGP Link State (BGP-LS) 843

Path Computation Element Protocol (PCEP) 859

Summary 880

Part VIII Programmability Applications

Chapter 17 Programming Cisco Platforms 881

API Classification 882

Network Platforms 883

Meraki 922

DNA Center 931

Collaboration Platforms 942

Summary 954

Chapter 18 Programming Non-Cisco Platforms 957

General Approaches to Programming Networks 957

Implementation Examples 962

Summary 987

Chapter 19 Ansible 989

Ansible Basics 989

Extending Ansible Capabilities 1003

Jinja2 Templates 1034

Using Ansible for Cisco IOS XE 1055

Using Ansible for Cisco IOS XR 1073

Using Ansible for Cisco NX-OS 1084

Using Ansible in Conjunction with NETCONF 1095

Summary 1108

Part IX Looking Ahead

Chapter 20 Looking Ahead 1109

Some Rules of Thumb 1109

What Does All This Mean for Your Career? 1118

9781587145148, TOC, 4/1/2021

Jeff is the author of CCIE Professional Development: Routing TCP/IP, Volumes I and II and OSPF and IS-IS: Choosing an IGP for Large-Scale Networks; a co-author of Software-Defined Networking: Anatomy of OpenFlow; and an editor and contributing author of Juniper Networks Routers: The Complete Reference. Jeff is currently writing CCIE Professional Development: Switching TCP/IP. He also writes for Forbes and blogs for both Network World and Network Computing. Jeff is one of the founders of the Rocky Mountain IPv6 Task Force, is an IPv6 Forum Fellow, and serves on the executive board of the Colorado chapter of the Internet Society (ISOC).

Anton Karneliuk, CCIE No. 49412 (R&S, SP), is a Network Engineer and Manager at THG Hosting, responsible for the development, operation, and automation of networks in numerous data centers across the globe and the international backbone. Prior to joining THG, Anton was a team lead in Vodafone Group Network Engineering and Delivery, focusing on introduction of SDN and NFV projects in Germany. Anton has 15 years of extensive experience in design, rollout, operation, and optimization of large-scale service providers and converged networks, focusing on IP/MPLS, BGP, network security, and data center Clos fabrics built using EVPN/VXLAN. He also has several years of full-stack software development experience for network management and automation.

Anton holds a B.S. in telecommunications and an M.S. in information security from Belarusian State University of Informatics and Radio Electronics. You can find him actively blogging about network automation and running online training at Karneliuk. com. Anton lives with his wife in London.

Vinit Jain, CCIE No. 22854 (R&S, SP, Security & DC), is a Network Development Engineer at Amazon, managing the Amazon network backbone operations team. Previously, he worked as a technical leader with the Cisco Technical Assistance Center (TAC), providing escalation support in routing and data center technologies. Vinit is a speaker at various networking forums, including Cisco Live! events. He has co-authored several Cisco Press titles, such as Troubleshooting BGP, and Troubleshooting Cisco Nexus Switches and NX-OS, LISP Network Deployment and Troubleshooting, and has authored and co-authored several video courses, including BGP Troubleshooting, the CCNP DCCOR Complete Video Course, and the CCNP ENCOR Complete Video Course. In addition to his CCIEs, Vinit holds multiple certifications related to programming and databases. Vinit graduated from Delhi University in mathematics and earned a master’s in information technology from Kuvempu University in India. Vinit can be found on Twitter as @VinuGenie.