Episode 18: MTU and Fragmentation — Why Packet Size Matters

This episode explains the role of Maximum Transmission Unit (MTU) and how packet fragmentation occurs when data exceeds size limits. MTU defines the largest packet size that can be transmitted across a link without requiring fragmentation, making it a critical parameter for efficient communication. The discussion covers how fragmentation works, why it can lead to performance issues, and how exam questions test your ability to recognize its effects.

Real-world considerations are provided, such as diagnosing slow connections caused by mismatched MTU settings or identifying fragmentation in VPN tunnels. You will also learn about troubleshooting methods like using the ping command with the “do not fragment” flag to test path MTU. By mastering these concepts, you’ll be prepared to answer exam questions related to packet size and apply best practices to optimize network performance. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your certification path.