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data-link-layer
consists-of
- Application Layer [ part ]
- Network Layer [ part ]
- Physical Layer [ part ]
- Presentation Layer [ part ]
- Session Layer [ part ]
- Transport Layer [ part ]
- OSI Model, Open System Interconnection [ whole ]
encapsulates:
- Frame [ container ]
- data [ content ]
is above:
- Physical Layer [ lower ]
- Network Layer [ upper ]
function:
- Encapsulation [ function ]
OSI Layer
- Network Layer
- Data Link Layer
- Application Layer
- Presentation Layer
- Session Layer
- Transport Layer
- Physical Layer
Types:
Comment:
land of switches, bridges, NICs
Comment:
flow control, reliable data delivery possible
definition
sending data across a single link within frames
Comment:
physical addressing (depending on protocol used)
protocols
Ethernet, Token Ring, FDDI, SLIP, PPP, X.25, Frame Relay, ISDN, ATM,...
Comment:
dealing with access control on shared medium - Medium Access Control (MAC) - broadcast domain - collision domain