eBPF for CNFs: A Beginner's Guide
Unlock the power of eBPF to revolutionize your CNF development with enhanced network visibility, security, and performance.
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Introduction to eBPF and CNFs
Unit 1: eBPF Fundamentals
What is eBPF?
eBPF's Kernel Role
eBPF vs. Traditional
eBPF Use Cases
eBPF Ecosystem
Unit 2: Understanding Cloud-Native Network Functions (CNFs)
What are CNFs?
CNF Architecture
CNF Challenges
CNF Use Cases
Unit 3: eBPF and CNFs: A Powerful Combination
eBPF for CNFs
Monitoring CNFs with eBPF
Securing CNFs with eBPF
Optimizing CNFs with eBPF
eBPF Toolchain Intro
eBPF Architecture and Core Concepts
Unit 1: eBPF Architecture Deep Dive
eBPF: The Big Picture
The In-Kernel VM
JIT Compilation
The Verifier
eBPF Program Lifecycle
Unit 2: eBPF Program Types and Networking Use Cases
XDP Explained
TC Program Type
Kprobes and Uprobes
Other Program Types
Unit 3: eBPF Maps: Data Storage and Sharing
eBPF Maps: The Basics
Hash Maps
Array Maps
Per-CPU Maps
Sharing Data
Unit 4: eBPF Helpers: Interacting with the Kernel
eBPF Helpers: Overview
Setting Up Your eBPF Development Environment
Unit 1: Installing Essential eBPF Tools
Meet Your Toolkit
Installing bpftool
Installing libbpf
Installing clang
Kernel Headers
Unit 2: Setting Up a Virtualized CNF Environment
CNF Environment Options
Docker Setup
Minikube Setup
Networking in Docker
Networking in Minikube
Unit 3: Verifying and Troubleshooting Your eBPF Environment
Environment Checklist
Tool Version Checks
Kernel Header Validation
Connectivity Tests
Writing and Loading Simple eBPF Programs
Unit 1: Introduction to eBPF Program Development
Your First eBPF Program
Setting Up libbpf
Compilation with Clang
eBPF Bytecode
Unit 2: Loading and Attaching eBPF Programs
Loading with bpftool
Attaching to Interfaces
Verifying Program Execution
Initial Results
Unit 3: Network Packet Filtering with eBPF
Filtering Basics
Accessing Packet Data
Filtering by Protocol
Filtering by Port
Filtering by IP Address
Putting It All Together
eBPF for CNF Monitoring and Analysis
Unit 1: Introduction to CNF Monitoring with eBPF
Why Monitor CNFs?
eBPF's Role in Monitoring
Monitoring Use Cases
Unit 2: Implementing eBPF-Based Monitoring Programs
Latency Monitoring
Packet Loss Detection
Resource Monitoring
Unit 3: Data Aggregation and Export
eBPF Maps for Aggregation
Exporting Data to User Space
Data Serialization
Unit 4: Analyzing and Visualizing CNF Traffic
Traffic Pattern Analysis
Integration with Grafana
Advanced Visualization
BPF Performance Analyzer
Unit 5: Putting it all together
End-to-End Monitoring
eBPF for CNF Security and Traffic Shaping
Unit 1: eBPF for CNF Security Policies
CNF Security with eBPF
Access Control Basics
DDoS Mitigation
Advanced Security Rules
Unit 2: eBPF for CNF Traffic Shaping
Traffic Shaping Intro
Prioritizing Traffic
Rate Limiting
QoS with eBPF
Unit 3: Troubleshooting and Debugging eBPF Programs
Debugging eBPF: Logs
The Verifier
bpftool for Debugging
Unit 4: Advanced eBPF Techniques for CNF Optimization
eBPF Tail Calls
BPF Type Format
Dynamic Program Gen