(Data Link layer)
䳿 , . , , . , 䳺. IEEE 802 2 - MAC (Media Access Control) , LLC (Logical Link Control) . , .
3- OSI?
(Network layer)
3- OSI, . ³ , , , . , .
4- OSI?
(Transport layer)
(Transport layer) - 4- OSI, , , . , , , . , , ᒺ , . 䳿 -.
5- OSI?
(Session layer)
³ ', . г / , , , . , 䳿.
6- OSI?
г (Presentation layer)
/ . , , , , . / / , , .
7- OSI?
(Application layer)
(7-) , . г , , , . , .
볺-?
볺- , 볺 (front end - , back end - (, ))
37. (Network Interface Card, NIC) - ', 䳺 , ' '. , , '.