AppleTalk - Six-layer Protocol Suite
Physical Layer:
- Token Ring Hardware
- Ethernet Hardware
- LocalTalk Hardware (uses a synchronous RS-422A bus with speed 230.4 Kbps)
Data Link Layer:
- TLAP - TokenTalk Link Access Protocol
- ELAP - EtherTalk Link Access Protocol
- LLAP - LocalTalk Link Access Protocol; uses CSMA/CA- collision avoidance
- AARP - AppleTalk Address Resolution Protocol is included in LAP specification; it translates hardware addresses to AppleTalk addresses