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Mastering Python Networking

You're reading from   Mastering Python Networking Utilize Python packages and frameworks for network automation, monitoring, cloud, and management

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Product type Paperback
Published in Jan 2023
Publisher Packt
ISBN-13 9781803234618
Length 594 pages
Edition 4th Edition
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Author (1):
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Eric Chou Eric Chou
Author Profile Icon Eric Chou
Eric Chou
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Toc

Table of Contents (19) Chapters Close

Preface 1. Review of TCP/IP Protocol Suite and Python 2. Low-Level Network Device Interactions FREE CHAPTER 3. APIs and Intent-Driven Networking 4. The Python Automation Framework – Ansible 5. Docker Containers for Network Engineers 6. Network Security with Python 7. Network Monitoring with Python – Part 1 8. Network Monitoring with Python – Part 2 9. Building Network Web Services with Python 10. Introduction to Async IO 11. AWS Cloud Networking 12. Azure Cloud Networking 13. Network Data Analysis with Elastic Stack 14. Working with Git 15. Continuous Integration with GitLab 16. Test-Driven Development for Networks 17. Other Books You May Enjoy
18. Index

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In Chapter 7, Network Monitoring with Python – Part 1, we used SNMP to query information from network devices. We did this using an SNMP manager to query the SNMP agent residing on the network device. The SNMP information is structured in a hierarchy format with a specific object ID as a way to represent the value of the object. Most of the time, the value we care about is a number, such as CPU load, memory usage, or interface traffic. We can graph this data against time to give us a sense of how the value has changed over time.

We can typically classify the SNMP approach as a pull method as we constantly ask the device for a particular answer. This method adds a burden to the device because it needs to spend a CPU cycle on the control plane to find answers from the subsystem, package the answer in an SNMP packet, and transport the answer back to the poller. If you have ever been to a family reunion where you...

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