Topic suggestion: More related to communication layers

Created by: zoidbergwill

This guide contains a pretty awesome overview of what matters when it comes to designing systems on a high-level technical level.

I loved reading over it all.

Fleshing out some information about application, transport, and network layers. Maybe covering the interaction between DNS/ARP/BGP as well would be valuable, imho.

https://github.com/donnemartin/system-design-primer#communication