Networking Brain Dump
Part 6 of 6. This is the last one. It covers NTP, first-hop redundancy, multicast from IGMP through PIM, tunneling protocols, and MPLS including VPNs and DMVPN. IP Services NTP NTP (Network Time Protocol) synchronizes clocks across network devices. It operates over UDP on port 123. NTP gets its time
Networking Brain Dump
Part 5 of 6. This is the one that actually connects the internet together. BGP is what ISPs use to exchange routes with each other, what large enterprises use to connect to multiple providers, and what every autonomous system on the planet uses to announce what address space it owns.
Networking Brain Dump
Part 4 of 6. Parts 1 through 3 covered the OSI model, application protocols, routing fundamentals, and Layer 2 switching. This part goes deep into the two most common interior routing protocols. There's a lot here. Take it in sections. EIGRP EIGRP (Enhanced Interior Gateway Routing Protocol) is
Networking Brain Dump
Part 3 of 6. Parts 1 and 2 covered the OSI model, all seven layers, and routing fundamentals. This one stays at Layer 2 and goes deep into how switched networks are designed, protected from themselves, and optimized. VLANs A VLAN (Virtual LAN) is a logical partition of a Layer
Networking Brain Dump
Part 2 of 6. Part 1 covered the OSI model and layers 1-4. This one finishes the model and then gets into the protocols you interact with every time you open a browser. Layers 5, 6, and 7 Before getting into the application protocols themselves, the top three OSI layers
Networking Brain Dump
So I've been sitting on a few hundred pages of networking notes for a while now. The kind you write when you're trying to actually understand something, not just get through an exam. The problem is nobody wants to read a few hundred pages of notes,