Competing Networking Models: OSI vs. Internet Whose Kung Fu is Better?
Two competing models are used to describe networking
- Open Systems Interconnection (OSI) architecture
- Internet Architecture
Open Systems Interconnection Standard
- partitions network connectivity into seven layers.
- published by OSI and International Telecommunications Union (ITU) in series of “X dot” standards: X.25, X.400, etc.
Internet Architecture Standard
- also known as “TCP/IP architecture” after its two key protocols
- evolved from packet-switched ARPANET of DoD
- Internet Engineering Task Force (IETF) maintenance.