Since BGP, Routing is useless until the Network Infrastructure, Network Infrastructures are most important thing for Internet Service. In this article, I present a Real-World South Korea Internet Access Topology.  I figured out Real-World South Korea Internet access topology by exploring physical infra (e.g. Utility Pole, MDF room at buildings..) to observe how internet infrastructures are constructed between my home and C.O.

In South Korea, Many people live on apartment not a house. So node must be installed at near apartment. 

For example, In Cable Infra, HFC Node is typically installed at each apartment units. In FTTH Infra, Splitter is installed periodical floors.

Since 2022, I researched "How internet infrastructures are constructed between my ISP's central office and my home". 

As I  live in an apartment where the fiber internet is deployed, I had an opportunity to see M.D.F (Main Distribution Frame) room thanks to facility manager's approval.

Before I tour MDF, I just though there's no interesting thing. I just though there are only some kind of passive splitter or Voice equipments. However there are actually more interesting things i expected.

To be appear..