Network Performance and Routing

  1. Network Optimization and Troubleshooting
    1. Traffic Engineering
      1. Traffic Engineering Fundamentals
        1. Traffic Matrix Analysis
          1. Capacity Planning
            1. Performance Optimization Goals
            2. Traditional Traffic Engineering
              1. IGP Metric Manipulation
                1. Load Balancing Techniques
                  1. Path Selection Optimization
                  2. MPLS Traffic Engineering
                    1. MPLS-TE Concepts
                      1. Constraint-Based Routing
                        1. Resource Reservation
                          1. Explicit Path Setup
                          2. Label Switched Paths (LSPs)
                            1. LSP Establishment
                              1. LSP Maintenance
                                1. LSP Teardown
                                2. RSVP-TE Protocol
                                  1. Path and Resv Messages
                                    1. Resource Reservation
                                      1. Fast Reroute
                                      2. Constraint-Based SPF (CSPF)
                                        1. Path Computation
                                          1. Constraint Satisfaction
                                        2. Segment Routing
                                          1. Segment Routing Principles
                                            1. Source Routing Concepts
                                              1. Segment Types
                                                1. Segment Routing Global Block (SRGB)
                                                2. SR-MPLS Implementation
                                                  1. Label Stack Operations
                                                    1. Adjacency Segments
                                                      1. Prefix Segments
                                                      2. SR-IPv6 (SRv6)
                                                        1. IPv6 Extension Headers
                                                          1. SRv6 Functions
                                                          2. Use Cases
                                                            1. Traffic Engineering
                                                              1. Service Chaining
                                                                1. Fast Reroute
                                                            2. Performance Optimization Techniques
                                                              1. Routing Optimization
                                                                1. Convergence Time Reduction
                                                                  1. Fast Hello Timers
                                                                    1. BFD Implementation
                                                                      1. Incremental SPF
                                                                      2. Load Distribution Improvement
                                                                        1. ECMP Optimization
                                                                          1. Unequal-Cost Load Balancing
                                                                        2. Protocol Optimization
                                                                          1. Routing Protocol Tuning
                                                                            1. Timer Optimization
                                                                              1. Update Filtering
                                                                                1. Summarization Strategies
                                                                                2. BGP Optimization
                                                                                  1. Route Reflection Design
                                                                                    1. Confederation Implementation
                                                                                      1. Policy Optimization
                                                                                    2. Infrastructure Optimization
                                                                                      1. Hardware Upgrade Planning
                                                                                        1. Capacity Expansion
                                                                                          1. Redundancy Implementation
                                                                                        2. Troubleshooting Methodology
                                                                                          1. Systematic Troubleshooting Approach
                                                                                            1. Problem Definition
                                                                                              1. Information Gathering
                                                                                                1. Hypothesis Formation
                                                                                                  1. Testing and Verification
                                                                                                    1. Solution Implementation
                                                                                                    2. Troubleshooting Tools
                                                                                                      1. Command-Line Tools
                                                                                                        1. Network Analyzers
                                                                                                          1. Monitoring Systems
                                                                                                            1. Simulation Tools
                                                                                                            2. Documentation and Change Management
                                                                                                              1. Problem Documentation
                                                                                                                1. Solution Tracking
                                                                                                                  1. Change Control Processes
                                                                                                                2. Routing Troubleshooting
                                                                                                                  1. Neighbor Adjacency Issues
                                                                                                                    1. Adjacency Formation Problems
                                                                                                                      1. Authentication Mismatches
                                                                                                                        1. Timer Mismatches
                                                                                                                          1. Network Type Mismatches
                                                                                                                          2. Adjacency Maintenance Issues
                                                                                                                            1. Hello Packet Loss
                                                                                                                              1. Hold Timer Expiration
                                                                                                                                1. Interface Flapping
                                                                                                                              2. Routing Information Problems
                                                                                                                                1. Missing Routes
                                                                                                                                  1. Route Advertisement Issues
                                                                                                                                    1. Filtering Problems
                                                                                                                                      1. Redistribution Issues
                                                                                                                                      2. Incorrect Routes
                                                                                                                                        1. Metric Problems
                                                                                                                                          1. Path Selection Issues
                                                                                                                                            1. Route Preference Problems
                                                                                                                                          2. Routing Loops
                                                                                                                                            1. Loop Detection Methods
                                                                                                                                              1. Loop Prevention Mechanisms
                                                                                                                                                1. Loop Resolution Techniques
                                                                                                                                                2. Convergence Issues
                                                                                                                                                  1. Slow Convergence
                                                                                                                                                    1. Timer Configuration
                                                                                                                                                      1. Network Size Impact
                                                                                                                                                        1. Protocol Limitations
                                                                                                                                                        2. Convergence Failures
                                                                                                                                                          1. Stuck-in-Active (SIA)
                                                                                                                                                            1. LSA Corruption
                                                                                                                                                              1. Database Synchronization Issues
                                                                                                                                                          2. Performance Troubleshooting
                                                                                                                                                            1. Performance Problem Identification
                                                                                                                                                              1. Baseline Comparison
                                                                                                                                                                1. Threshold Monitoring
                                                                                                                                                                  1. User Complaint Analysis
                                                                                                                                                                  2. Bottleneck Analysis
                                                                                                                                                                    1. Device Performance Analysis
                                                                                                                                                                      1. Application Performance Analysis
                                                                                                                                                                      2. Latency and Packet Loss Analysis
                                                                                                                                                                        1. End-to-End Measurement
                                                                                                                                                                          1. Hop-by-Hop Analysis
                                                                                                                                                                            1. Root Cause Identification
                                                                                                                                                                            2. Correlation Analysis
                                                                                                                                                                              1. Routing Changes and Performance
                                                                                                                                                                                1. Configuration Changes Impact
                                                                                                                                                                                  1. Environmental Factors
                                                                                                                                                                                  2. Performance Improvement Strategies
                                                                                                                                                                                    1. Short-Term Solutions
                                                                                                                                                                                      1. Long-Term Planning
                                                                                                                                                                                        1. Cost-Benefit Analysis

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                                                                                                                                                                                    7. Quality of Service (QoS) for Performance Management

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                                                                                                                                                                                    1. Fundamentals of Network Performance