Glossary term
What is MTU (Maximum Transmission Unit)?
MTU stands for Maximum Transmission Unit.
In System Design
The largest packet size a network link can carry. Example: Usually about 1,500 bytes on Ethernet. Bigger data is split into several packets.
Learn it properly · System DesignLesson 1: What Happens When You Type a URL and Press Enter?The one second between pressing Enter and seeing a page hides a DNS lookup, a trip through a dozen routers, two handshakes and a server doing real work. Every later lesson zooms into one part of that journey.In Networking for Developers
The biggest packet a network link will carry, often 1500 bytes on Ethernet.
Learn it properly · Networking for DevelopersLesson 0: How the Internet Works: Layers, Packets and AddressesThe layer models, what a packet is, MAC, IP and ports, and following one request from your laptop to a server.