(layer) 7. (application) 6. (presentation) 5. (session) 4. (transport) 3. (network) 2. (data link) 1. (physical) ,
OSI
OSI, OSI 7- (. 1) (International Standardization Organization - ISO). 2 :
- ,
- ,
. - API.
1 OSI
1,
, 0 1 . . / :
- 0 1
:
- EIA-RS-232-C, CCITT V.24/V.28 - / .
- EIA-RS-422/449, CCITT V.10 - , .
- IEEE 802.3 -- Ethernet
- IEEE 802.5 -- Token ring
2,
, . . IEEE 802.x : (LLC) (MAC). LLC , MAC .
2 :
- HDLC
- IEEE 802.2 LLC ( I II) MAC 802.x
- Ethernet
- Token ring
- FDDI
- X.25
- Frame relay
3,
. MAC- . .
|
|
:
- IP - Internet
- IPX -
- X.25 ( 2)
- CLNP -
4,
() .
:
- TCP -
- NCP - Netware Core Protocol
- SPX -
- TP4 - 4
5,
. .