Podcast
Questions and Answers
What is the primary function of the 'rollback' operation in NAPALM?
What is the primary function of the 'rollback' operation in NAPALM?
Which of the following operations would you use to incorporate changes from an external file into the running configuration?
Which of the following operations would you use to incorporate changes from an external file into the running configuration?
What does the 'discard' operation accomplish in NAPALM?
What does the 'discard' operation accomplish in NAPALM?
In NAPALM, which operation would you use to check the differences between a proposed configuration file and the existing running configuration?
In NAPALM, which operation would you use to check the differences between a proposed configuration file and the existing running configuration?
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Which of the following statements about the SSH driver in relation to NX-OS is correct?
Which of the following statements about the SSH driver in relation to NX-OS is correct?
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What is the primary purpose of NAPALM?
What is the primary purpose of NAPALM?
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Which of the following statements about NAPALM is true?
Which of the following statements about NAPALM is true?
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What does the acronym API stand for?
What does the acronym API stand for?
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Which network protocols are mentioned as supported by NAPALM?
Which network protocols are mentioned as supported by NAPALM?
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What is one of the non-goals of network automation as stated in the content?
What is one of the non-goals of network automation as stated in the content?
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Which backend library is associated with the NXOS driver in NAPALM?
Which backend library is associated with the NXOS driver in NAPALM?
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Which version of NX-OS was the NX-API support introduced according to the provided information?
Which version of NX-OS was the NX-API support introduced according to the provided information?
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What is one of the advantages of using NAPALM in network management?
What is one of the advantages of using NAPALM in network management?
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Study Notes
Network Automation with Napalm
- Napalm is a Python package
- It's open-source
- Provides a unified API for multiple vendors
- Used when no vendor-specific API exists
- Provides methods to manipulate configurations.
- Provides methods to retrieve data.
- Supports multiple network device operating systems.
What is Napalm?
- Napalm provides abstraction and programmability for networks
- It's a layer that works with multiple vendors
What is an API?
- An API (Application Programming Interface) acts as an intermediary between applications
- It enables communication between applications using a question-and-answer method (similar to human interaction).
How APIs work (Example)
- Instagram on your phone requests a 'like' from the Instagram API.
- The Instagram API processes the request and saves the 'like' operation.
Starting with APIs
- Network configurations are becoming complex and large.
- Automation of network handover is crucial.
- Mutual trade-offs and consideration for complexity.
- Automating tasks can make them more complex (potentially).
Goals and Hopes
- Goals: infrastructure as code, source control, initial provisioning, configuration management, operational correctness.
- Non-Goals: removing all human/CLI input, avoiding proprietary software.
About Napalm
- Napalm is a Network Automation and Programmability Abstraction Layer
- It's a Python library with functions for interacting with different network operating systems using a unified API.
Network Components
- Packets: Different protocols like BGP, OSPF, and IS-IS.
- Connections: Port channels, Virtual Private Networks, and Ethernet.
Napalm Support Matrix
- Provides a table showing compatibility with different network devices (IOS-XR, NXOS, NX-OS SSH, IOS, EOS, JUNOS).
- Includes driver names, structured data support, minimum versions, and backend libraries.
What Can You Do with Napalm?
- Configuration replace: Replaces the running configuration with a new one.
- Configuration merge: Merges a set of changes from a file into the running configuration.
- Configuration compare: Compares a new proposed configuration with the running configuration.
- Discard: Reverts the candidate configuration back to the current running configuration.
- Commit: Deploys the staged configuration (using an entire new file or a merge file).
- Rollback: Reverts the running configuration to a previous saved version.
Data Information Gathering
- Code hosts make requests for data from running configurations.
- Details are provided in response.
Compliance/Reporting
- Code hosts generate expected results (compliance).
- Comparison against results of running configuration.
Deployment Operations
- Code hosts generate a candidate configuration,
- Changes are applied to the running configuration through merge or replacement methods.
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Description
This quiz covers the basics of Napalm, an open-source Python package designed for network automation. It explains how Napalm provides a unified API for interacting with various network vendors and the importance of APIs in modern network configurations. Test your understanding of network programmability through this quiz!
