• Layer 2 – data link: Layer 2 operations package and unpack the data in frames. • Layer 1 – physical: This layer defines the logic levels, data rate, physical media, and data conversion ...

In the network layer, Layer 3 of OSI and the Internetwork layer of the Internet model, we now deal with logical topologies of multiple media, not just individual media.

The third layer of the OSI Model, the network layer, is where most network engineers focus their time and expertise. As Darragh commented in my post on the data link layer , Layer 2 is cool but ...

Layer 1: The data layer, the primary blockchain Layer 2: The networking layer, which facilitates communication between nodes, and where off-chain scaling solutions connect ...