Network Traffic Monitoring and Analysis

  1. Performance Management and Troubleshooting
    1. Identifying Network Bottlenecks
      1. Bandwidth Saturation
        1. Congestion Detection
          1. Queue Depth Analysis
            1. Packet Drop Analysis
              1. Buffer Utilization
            2. Overloaded Network Devices
              1. Device Performance Metrics
                1. CPU Utilization
                  1. Memory Utilization
                    1. Interface Utilization
                    2. Performance Monitoring
                      1. SNMP Monitoring
                        1. Device-Specific Metrics
                          1. Threshold Alerting
                      2. Application Performance Troubleshooting
                        1. Network vs. Application Latency
                          1. End-to-End Testing
                            1. Application Response Time
                              1. Network Round-Trip Time
                                1. Server Processing Time
                                2. Latency Decomposition
                                  1. Network Latency Components
                                    1. Application Latency Components
                                      1. Database Latency
                                    2. Server Response Time Analysis
                                      1. Response Time Metrics
                                        1. First Byte Time
                                          1. Total Response Time
                                            1. Processing Time
                                            2. Performance Bottlenecks
                                              1. Server Overload
                                                1. Database Performance
                                                  1. Network Constraints
                                                2. Application Behavior Analysis
                                                  1. Error Code Analysis
                                                    1. HTTP Status Codes
                                                      1. Application Error Messages
                                                        1. Database Error Codes
                                                        2. Transaction Analysis
                                                          1. Transaction Success Rates
                                                            1. Transaction Duration
                                                              1. Transaction Patterns
                                                          2. Quality of Service Validation
                                                            1. QoS Tagging Verification
                                                              1. DSCP Marking
                                                                1. DSCP Values
                                                                  1. Marking Policies
                                                                    1. End-to-End Marking
                                                                    2. Class of Service
                                                                      1. CoS Values
                                                                        1. VLAN Priority
                                                                          1. Traffic Classification
                                                                        2. Priority Queue Performance
                                                                          1. Queue Depth Analysis
                                                                            1. Queue Utilization
                                                                              1. Queue Overflow
                                                                                1. Packet Dropping
                                                                                2. Traffic Shaping
                                                                                  1. Rate Limiting
                                                                                    1. Burst Handling
                                                                                      1. Policy Enforcement
                                                                                    2. Service Level Agreement Monitoring
                                                                                      1. SLA Metrics
                                                                                        1. Availability Metrics
                                                                                          1. Performance Metrics
                                                                                            1. Quality Metrics
                                                                                            2. SLA Reporting
                                                                                              1. Compliance Reporting
                                                                                                1. Violation Tracking
                                                                                                  1. Trend Analysis
                                                                                              2. Capacity Planning
                                                                                                1. Bandwidth Usage Trend Analysis
                                                                                                  1. Historical Data Review
                                                                                                    1. Usage Patterns
                                                                                                      1. Seasonal Variations
                                                                                                      2. Forecasting Models
                                                                                                        1. Linear Forecasting
                                                                                                          1. Exponential Smoothing
                                                                                                            1. Regression Analysis
                                                                                                          2. Future Network Needs Assessment
                                                                                                            1. Growth Projections
                                                                                                              1. User Growth
                                                                                                                1. Application Growth
                                                                                                                  1. Data Growth
                                                                                                                  2. Technology Changes
                                                                                                                    1. New Applications
                                                                                                                      1. Protocol Changes
                                                                                                                        1. Infrastructure Updates
                                                                                                                      2. Infrastructure Planning
                                                                                                                        1. Upgrade Planning
                                                                                                                          1. Device Upgrades
                                                                                                                            1. Architecture Changes
                                                                                                                            2. Resource Allocation
                                                                                                                              1. Budget Planning
                                                                                                                                1. Timeline Development
                                                                                                                                  1. Risk Assessment

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                                                                                                                            5. Core Analysis Techniques

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                                                                                                                            7. Network Security and Forensics