Introduction

• Understand packet loss and recovery
• What you need to know

1. Understanding Normal Traffic

• TCP state diagram
• TCP and Flow Control
• TCP Flow Control demo
• User Datagram Protocol
• Compare TCP and UDP

2. Latency, Packet Loss and Throughput

• Latency, packet loss, and throughput
• Packet loss and delay: TCP vs. UDP
• Bufferbloat
• Explicit Congestion Notification (ECN)
• Keep-Alive

3. TCP Packet Loss Recovery

• Network congestion
• Congestion avoidance
• Selective acknowledgment
• Slow start
• Fast retransmission and recovery

4. UDP Packet Loss Recovery

• UDP: Real-time protocols
• UDP: Quality of service
• UDP: Bursts and packet loss
• Malware and misconfiguration

Conclusion

• What's next?