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It would be useful to have a mapping of all of the protocols involved with the Ethereum implementations on to the OSI model (or equivalent). The protocols might include:
Whisper, devP2P, IPC, RPC, ABI, Wire, RLPx
This would help new users quickly get an understanding of the function of each protocol/application and assess what the options are (if any) within each layer.
How do the protocols used in the Ethereum implementation map onto the OSI model?
| OSI Layer | Ethereum Protocols |
-------------------------------------
| Application | Kademlia, RPC, IPC |
| Presentation | AES, ECDSA |
| Session | |
| Transport | |
| Network | |
| Data Link | |
| Physical | |
Please note that there is always an ambiguity/argument about the exact mappings to OSI layer. Each protocol works/can work at different layers and cannot be exactly matched to an OSI layer. The OSI layer can sometimes make life easy but it should not be used as a reference for everything.
