更新时间：2025-07-14 12:09:30
coverpage
Title Page
Copyright
Python Network Programming
About Packt
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Packt.com
Contributors
About the authors
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Preface
Who this book is for
What this book covers
To get the most out of this book
Download the example code files
Download the color images
Conventions used
Get in touch
Reviews
Fundamental Concepts
Network automation
DevOps
Software-defined networking
OpenFlow
Program concepts
Variables
Data types
Decision makers
Loops
Arrays
Functions
Best practices
Readability of a program
Support information
Indentation
Sample best practice example
Language choices (Python/PowerShell)
Writing your first program
PowerShell IDE
Python IDE
Representational State Transfer (REST) framework
Summary
Python for Network Engineers
Python interpreter and data types
Conditions and loops
Nested and multiple conditions
For next loop
While loop
Writing Python scripts
Passing arguments from the command line
Python modules and packages
Multithreading for parallel processing
Using Netmiko for SSH and network device interaction
Network automation use case
Continuous Integration for Network Engineers
Interaction with Splunk
Automation examples on various technology domains
BGP and routing table
Configuring Cisco switchport for access point
Configuring Cisco switchport for IP Phone
Wireless LAN (WLAN)
Access of IP Address Management (IPAM)
Example and use case
Create a web-based pre and post check tool for validations
Step 1 – Create the main HTML file
Step 2 – Create the backend Python code
Step 3 – Create web server based files for the tool
Step 4 – Create server based files for pre and post files comparison
SDN Concepts in Network Automation
Managing cloud platforms
Programmable network devices
Controller-based network fabric
Network automation tools
Low-Level Network Device Interactions
The challenges of the CLI
Constructing a virtual lab
Cisco VIRL
VIRL tips
Cisco DevNet and dCloud
GNS3
Python Pexpect library
Pexpect installation
Pexpect overview
Our first Pexpect program
More Pexpect features
Pexpect and SSH
Putting things together for Pexpect
The Python Paramiko library
Installation of Paramiko
Paramiko overview
Our first Paramiko program
More Paramiko features
Paramiko for servers
Putting things together for Paramiko
Looking ahead
