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Internet Governance Glossary


2.14 Internet architecture

Model communications infrastructure consisting – besides its telecommunication infrastructure – of a layered system of protocols that control various aspects of the Internet architecture.


The Internet architecture comprises the following layers of protocols:

  • Application layer,
  • Transport layer,
  • Internet layer,
  • Network access layer.

At each layer various technical protocols are working based on rigorously developed technical standards dividing methods into a layered system of protocols. The Internet Protocol Suite (TCP/IP) is the most important set of protocols of this layered system of protocols.