Cisco DevNet Certifications - DevNet Specialist
1 Introduction to Cisco DevNet
2 Cisco DevNet Certifications Overview
1 DevNet Associate
2 DevNet Professional
3 DevNet Specialist
3 DevNet Specialist Certification Path
1 Core Competencies
2 Specialization Tracks
4 DevNet Specialist - Enterprise Automation and Programmability
1 Introduction to Enterprise Automation
2 Network Programmability Concepts
3 Cisco DNA Center APIs
4 Cisco IOS XE Programmability
5 Cisco ACI Programmability
6 Cisco SD-WAN Programmability
7 Cisco UCS Programmability
8 Automation Tools and Frameworks
9 Python for Network Engineers
10 RESTful APIs and HTTP Methods
11 JSON and XML Data Formats
12 YANG Data Modeling
13 NETCONF and RESTCONF
14 Ansible for Network Automation
15 Puppet for Network Automation
16 Git and Version Control
17 CICD Pipelines for Network Automation
18 Troubleshooting Automation Issues
5 DevNet Specialist - Network Programmability and Automation
1 Introduction to Network Programmability
2 Network Automation Concepts
3 Cisco NX-API and NX-OS Programmability
4 Cisco IOS XR Programmability
5 Cisco Meraki Programmability
6 Cisco Catalyst 9000 Series Programmability
7 Cisco SD-Access Programmability
8 Network Automation Tools and Frameworks
9 Python for Network Engineers
10 RESTful APIs and HTTP Methods
11 JSON and XML Data Formats
12 YANG Data Modeling
13 NETCONF and RESTCONF
14 Ansible for Network Automation
15 Puppet for Network Automation
16 Git and Version Control
17 CICD Pipelines for Network Automation
18 Troubleshooting Automation Issues
6 DevNet Specialist - Software Development and Design
1 Introduction to Software Development
2 Software Design Principles
3 Object-Oriented Programming (OOP)
4 Python Programming Language
5 RESTful API Design
6 Microservices Architecture
7 Containerization with Docker
8 Orchestration with Kubernetes
9 CICD Pipelines for Software Development
10 Test-Driven Development (TDD)
11 Version Control with Git
12 Agile Development Methodologies
13 DevOps Practices
14 Troubleshooting Software Development Issues
7 DevNet Specialist - Cloud Automation and Programmability
1 Introduction to Cloud Automation
2 Cloud Programmability Concepts
3 Cisco CloudCenter Suite
4 Cisco Intersight Programmability
5 Cisco Hybrid Cloud Manager
6 Cisco Application Policy Infrastructure Controller (APIC)
7 Cisco Container Platform
8 Cloud Automation Tools and Frameworks
9 Python for Cloud Engineers
10 RESTful APIs and HTTP Methods
11 JSON and XML Data Formats
12 YANG Data Modeling
13 NETCONF and RESTCONF
14 Ansible for Cloud Automation
15 Puppet for Cloud Automation
16 Git and Version Control
17 CICD Pipelines for Cloud Automation
18 Troubleshooting Cloud Automation Issues
8 DevNet Specialist - Collaboration Programmability
1 Introduction to Collaboration Programmability
2 Cisco Webex Programmability
3 Cisco Unified Communications Manager (CUCM) Programmability
4 Cisco Contact Center Enterprise (CCE) Programmability
5 Collaboration Programmability Tools and Frameworks
6 Python for Collaboration Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Collaboration Automation
12 Puppet for Collaboration Automation
13 Git and Version Control
14 CICD Pipelines for Collaboration Automation
15 Troubleshooting Collaboration Programmability Issues
9 DevNet Specialist - Security Programmability
1 Introduction to Security Programmability
2 Cisco Firepower Management Center (FMC) Programmability
3 Cisco Identity Services Engine (ISE) Programmability
4 Cisco Stealthwatch Programmability
5 Cisco Secure Network Analytics (SNA) Programmability
6 Security Programmability Tools and Frameworks
7 Python for Security Engineers
8 RESTful APIs and HTTP Methods
9 JSON and XML Data Formats
10 YANG Data Modeling
11 NETCONF and RESTCONF
12 Ansible for Security Automation
13 Puppet for Security Automation
14 Git and Version Control
15 CICD Pipelines for Security Automation
16 Troubleshooting Security Programmability Issues
10 DevNet Specialist - Data Center Programmability
1 Introduction to Data Center Programmability
2 Cisco Application Centric Infrastructure (ACI) Programmability
3 Cisco Nexus Programmability
4 Cisco UCS Programmability
5 Data Center Programmability Tools and Frameworks
6 Python for Data Center Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Data Center Automation
12 Puppet for Data Center Automation
13 Git and Version Control
14 CICD Pipelines for Data Center Automation
15 Troubleshooting Data Center Programmability Issues
11 DevNet Specialist - IoT Programmability
1 Introduction to IoT Programmability
2 Cisco IoT Field Network Director (FND) Programmability
3 Cisco Kinetic for Cities Programmability
4 Cisco IoT Operations Dashboard Programmability
5 IoT Programmability Tools and Frameworks
6 Python for IoT Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for IoT Automation
12 Puppet for IoT Automation
13 Git and Version Control
14 CICD Pipelines for IoT Automation
15 Troubleshooting IoT Programmability Issues
12 DevNet Specialist - Service Provider Programmability
1 Introduction to Service Provider Programmability
2 Cisco Network Services Orchestrator (NSO) Programmability
3 Cisco IOS XR Programmability
4 Cisco ASR 9000 Series Programmability
5 Service Provider Programmability Tools and Frameworks
6 Python for Service Provider Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Service Provider Automation
12 Puppet for Service Provider Automation
13 Git and Version Control
14 CICD Pipelines for Service Provider Automation
15 Troubleshooting Service Provider Programmability Issues
13 DevNet Specialist - Wireless Programmability
1 Introduction to Wireless Programmability
2 Cisco Wireless LAN Controller (WLC) Programmability
3 Cisco DNA Center Wireless Programmability
4 Cisco Mobility Services Engine (MSE) Programmability
5 Wireless Programmability Tools and Frameworks
6 Python for Wireless Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Wireless Automation
12 Puppet for Wireless Automation
13 Git and Version Control
14 CICD Pipelines for Wireless Automation
15 Troubleshooting Wireless Programmability Issues
14 DevNet Specialist - DevOps and Automation
1 Introduction to DevOps and Automation
2 Continuous Integration (CI)
3 Continuous Deployment (CD)
4 Infrastructure as Code (IaC)
5 Configuration Management Tools
6 Monitoring and Logging
7 Containerization and Orchestration
8 CICD Pipelines
9 Version Control with Git
10 Agile Development Methodologies
11 DevOps Practices
12 Troubleshooting DevOps Issues
15 DevNet Specialist - Automation and Programmability Best Practices
1 Best Practices for Network Automation
2 Best Practices for Software Development
3 Best Practices for Cloud Automation
4 Best Practices for Security Programmability
5 Best Practices for Data Center Programmability
6 Best Practices for IoT Programmability
7 Best Practices for Service Provider Programmability
8 Best Practices for Wireless Programmability
9 Best Practices for Collaboration Programmability
10 Best Practices for DevOps and Automation
16 DevNet Specialist - Certification Exam Preparation
1 Exam Objectives and Domains
2 Study Resources and Materials
3 Practice Exams and Simulations
4 Exam Registration and Scheduling
5 Test-Taking Strategies
6 Post-Exam Actions and Certification Maintenance
10 NETCONF and RESTCONF Explained

10 NETCONF and RESTCONF Explained

1. NETCONF Overview

NETCONF (Network Configuration Protocol) is a network management protocol used to configure, manage, and monitor network devices. It operates over SSH and uses XML for data encoding, making it suitable for complex configurations and data exchanges.

Example: Think of NETCONF as a remote control for a complex machine. Just as a remote control sends commands to the machine, NETCONF sends configuration commands to network devices.

2. RESTCONF Overview

RESTCONF (RESTful Network Configuration Protocol) is a protocol that provides a RESTful API interface to the NETCONF datastore. It uses HTTP/HTTPS for communication and JSON or XML for data encoding, making it more accessible for web developers.

Example: Consider RESTCONF as a web interface for a smart home system. Just as a web interface allows you to control your smart home devices, RESTCONF allows you to manage network devices via a web-friendly API.

3. NETCONF Operations

NETCONF defines a set of operations for managing network devices, including get, get-config, edit-config, lock, unlock, and commit. These operations allow for retrieving, modifying, and committing configurations.

Example: Think of NETCONF operations as different buttons on a remote control. Each button (operation) performs a specific function, such as turning on the TV (get) or adjusting the volume (edit-config).

4. RESTCONF Methods

RESTCONF uses standard HTTP methods like GET, PUT, POST, DELETE, and PATCH to interact with the NETCONF datastore. These methods correspond to the operations defined in NETCONF.

Example: Consider RESTCONF methods as different actions you can perform on a website. Just as you can view a page (GET), submit a form (POST), or delete an item (DELETE), RESTCONF allows you to perform similar actions on network devices.

5. YANG Data Modeling

YANG (Yet Another Next Generation) is a data modeling language used to define the structure of data that can be managed using NETCONF and RESTCONF. YANG models describe the data nodes, their types, and their relationships.

Example: Think of YANG as a blueprint for a house. Just as a blueprint defines the layout and structure of a house, YANG defines the structure and relationships of data in network devices.

6. NETCONF Capabilities

NETCONF capabilities are extensions that allow devices to advertise additional features and functionalities. These capabilities are exchanged during the initial handshake and can include support for specific YANG modules or operations.

Example: Consider NETCONF capabilities as optional features on a car. Just as a car can have features like GPS or a sunroof, network devices can have capabilities like support for specific YANG modules.

7. RESTCONF Media Types

RESTCONF supports different media types for data encoding, including XML and JSON. The choice of media type depends on the client's preference and the server's capabilities. XML is often used for complex data structures, while JSON is preferred for simplicity and readability.

Example: Think of RESTCONF media types as different languages. Just as you can communicate in English or Spanish, RESTCONF allows you to use XML or JSON to communicate with network devices.

8. NETCONF Locking Mechanism

NETCONF provides a locking mechanism to prevent concurrent access to the configuration datastore. The lock operation allows a client to lock the datastore, ensuring that no other client can modify it until the lock is released.

Example: Consider the NETCONF locking mechanism as a key to a room. Just as you can lock a room to prevent others from entering, NETCONF allows you to lock the datastore to prevent concurrent modifications.

9. RESTCONF Error Handling

RESTCONF uses standard HTTP status codes for error handling, such as 4xx for client errors and 5xx for server errors. Additionally, RESTCONF can include detailed error information in the response body, using the YANG error-info structure.

Example: Think of RESTCONF error handling as a traffic light. Just as a red light indicates a stop, HTTP status codes like 404 (Not Found) or 500 (Internal Server Error) indicate errors in RESTCONF operations.

10. NETCONF and RESTCONF Integration

NETCONF and RESTCONF can be integrated to provide a comprehensive management solution. RESTCONF can be used for simple and frequent operations, while NETCONF can be used for more complex and infrequent operations. This integration allows for a flexible and scalable management approach.

Example: Consider NETCONF and RESTCONF integration as a multi-tool. Just as a multi-tool combines different tools for various tasks, integrating NETCONF and RESTCONF provides a versatile solution for managing network devices.