Ethernet specs also include the physical layer so, no, it’s not even technically correct. X.25 even covered everything from physical to network. TCP covers both layer 5 and 6 (transport and session), it’s not terribly uncommon to cover more than one layer. OSI layers are more of a guideline, not rules.
Ethernet specs also include the physical layer so, no, it’s not even technically correct. X.25 even covered everything from physical to network. TCP covers both layer 5 and 6 (transport and session), it’s not terribly uncommon to cover more than one layer. OSI layers are more of a guideline, not rules.