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Mastering Python Networking.

Author: Eric Chou
Publisher: Birmingham : Packt Publishing, 2017.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Summary:
Become an expert in implementing advanced, network-related tasks with Python. About This Book Build the skills to perform all networking tasks using Python with ease Use Python for network device automation, DevOps, and software-defined networking Get practical guidance to networking with Python Who This Book Is For If you are a network engineer or a programmer who wants to use Python for networking, then this book  Read more...
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Genre/Form: Electronic books
Additional Physical Format: Print version:
Chou, Eric.
Mastering Python Networking.
Birmingham : Packt Publishing, ©2017
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Eric Chou
ISBN: 9781784397623 1784397628
OCLC Number: 993048456
Notes: Network module conditional.
Description: 1 online resource (439 pages)
Contents: Cover ; Copyright; Credits; Foreword; About the Author; About the Reviewer; www.PacktPub.com; Customer Feedback; Table of Contents; Preface; Chapter 1: Review of TCP/IP Protocol Suite and Python Language; The internet overview; Servers, hosts, and network components; The rise of datacenter; Enterprise datacenters; Cloud datacenters; Edge datacenters; The OSI model; Client server models; Network protocol suites; The Transmission Control Protocol (TCP); Functions and Characteristics of TCP; TCP messages and data transfer; User Datagram Protocol (UDP); The Internet Protocol (IP). The IP NAT and securityIP routing concepts; Python language overview; Python versions; Operating system; Running a Python program; Python built-In types; The None type; Numerics; Sequences; Mapping; Sets; Python operators; Python control flow tools; Python functions; Python classes; Python modules and packages; Summary; Chapter 2: Low-Level Network Device Interactions; The challenges of CLI; Constructing a virtual lab; Cisco Virtual Internet Routing Lab (VIRL); VIRL tips; Cisco DevNet and dCloud; GNS3; Python Pexpect Library; Installation; The Pexpect overview; Our first Expect program. More Pexpect featuresPexpect and SSH; Putting things together for Pexpect; The Python Paramiko library; Installating Paramiko; The Paramiko overview; Our first Paramiko program; More Paramiko features; Paramiko for Servers; Putting things together for Paramiko; Looking ahead; Downsides of Pexpect and Paramiko compared to other tools; Idempotent network device interaction; Bad automation speeds bad things up; Summary; Chapter 3: API and Intent-Driven Networking; Infrastructure as the Python code; Screen scraping versus API structured output; Data modeling for infrastructure as code. The Cisco API and ACICisco NX-API; Lab Software Installation and Device Preparation; NX-API examples; Cisco and YANG model; The Cisco ACI; The Python API for Juniper networks; Juniper and NETCONF; Device Preparation; Juniper NETCONF examples; Juniper PyEZ for developers; Installation and preparation; PyEZ examples; The Arista Python API; The Arista eAPI management; The eAPI preparation; eAPI examples; The Arista Pyeapi library; The Pyeapi installation; Pyeapi examples; Vendor neutral libraries; Summary; Chapter 4: The Python Automation Framework --
Ansible Basics; A quick Ansible example. The control node installationYour first Ansible playbook; The Public key authorization; The inventory file; Our first playbook; The advantages of Ansible; Agentless; Idempotent; Simple and extensible; The vendor Support; The Ansible architecture; YAML; Inventories; Variables; Templates with Jinja2; Ansible networking modules; Local connections and facts; Provider arguments; The Ansible Cisco example; The Ansible Juniper example; The Ansible Arista example; Summary; Chapter 5: The Python Automation Framework --
Ansible Advance Topics; Ansible conditionals; The when clause.

Abstract:

Become an expert in implementing advanced, network-related tasks with Python. About This Book Build the skills to perform all networking tasks using Python with ease Use Python for network device automation, DevOps, and software-defined networking Get practical guidance to networking with Python Who This Book Is For If you are a network engineer or a programmer who wants to use Python for networking, then this book is for you. A basic familiarity with networking-related concepts such as TCP/IP and a familiarity with Python programming will be useful. What You Will Learn Review all the fundamentals of Python and the TCP/IP suite Use Python to execute commands when the device does not support the API or programmatic interaction with the device Implement automation techniques by integrating Python with Cisco, Juniper, and Arista eAPI Integrate Ansible using Python to control Cisco, Juniper, and Arista networks Achieve network security with Python Build Flask-based web-service APIs with Python Construct a Python-based migration plan from a legacy to scalable SDN-based network. In Detail This book begins with a review of the TCP/ IP protocol suite and a refresher of the core elements of the Python language. Next, you will start using Python and supported libraries to automate network tasks from the current major network vendors. We will look at automating traditional network devices based on the command-line interface, as well as newer devices with API support, with hands-on labs. We will then learn the concepts and practical use cases of the Ansible framework in order to achieve your network goals. We will then move on to using Python for DevOps, starting with using open source tools to test, secure, and analyze your network. Then, we will focus on network monitoring and visualization. We will learn how to retrieve network information using a polling mechanism, {uFB02}ow-based monitoring, and visualizing the data programmatically. Next, we will learn how to use the Python framework to build your own customized network web services. In the last module, you will use Python for SDN, where you will use a Python-based controller with OpenFlow in a hands-on lab to learn its concepts and applications. We will compare and contrast OpenFlow, OpenStack, OpenDaylight, and NFV. Finally, you will use everything you{u2019}ve learned in the book to construct a migration plan to go from a legacy to a scalable SDN-based network. Style and approach An easy-to-follow guide pack...

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