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OSI (Open System Interchange). , - ( ).. , OSI , - , , -, . , OSI , .

.

(Application), , , , , , , , . . ( , OSI);

. :

FTAM (File Transfer Access and Management)- OSI ;

X400 - 1 :

500 - 1 ,

SMTP (Simple Mail Transfer Protocol) - Internet ;

SMTP (Simple Transfer Protocol) - Internet ;

(Simple Network Management Protocol) , ;

Telnet - Internet ;

Microsoft SMBs (Server Message Blocks, ) Microsoft

NCP (Novell NetWare Core Protocol) Novell

(Presintation), , , , . , - .

(Session) , ( , ). , .

(Transport) , . , , .

( OSI);

. :

TCP (Transmission Control Protocol) TPC /IP- , ;

SPX - IPX /SPX (Internet work Packet Exchange /Sequential Packet Exchange) , , Novell

NWLink - IPX /SPX Microsoft;

NetBEUI (NetBIOS Exchange User Interface, NetBIOS) - (NetBIOS) , (NetBIOS).

 

(Network) ( ), , ( ).

, , . :

IP (Internet Protocol) /I - ;

IPX (Internetwork Packet Exchange) - NetWare ;

NWLink - IPX/SPX Microsoft;

NetBEUI - , NetBEUI

, (Data link), , . , . .

(Physical) - , , , . , , , , ..

OSI, IEEE Projest 802, 1980 (: 802 ), , , OSI. , ( 802-), , .

802.1 - ,

802.2 - .

802.3 - CSMA/SD (Ethernet).

802.4 - .

802.5 - .

802.6 - (Metropolitan Area Network, MAN).

802.7 - .

802.8

802.9 - .

802.10 - .

802.11- .

802.12 - (100VG-AnyLAN).

802.3. 802.4. 802.5, 802.12 MAC () OSI. 802- .

15 /IP. , , .

(TCP/IP) - , .

, TCP/IP :

- , .

- TCP/IP.

- Internet.

- intranet- , Internet WWW, Internet.

- TCP/IP.

- , .

-. , :

- ;

- ;

- ;

- .

16 TCP/IP. , .

TCP/IP . TCP/IP 4 :

IV() - OSI. TCP/IP , .

III() - - , , , . .

( OSI) IP, , , , . IP , . IP - , , .

II() - . TCP UDP. TCP . UDP , IP, .

I() - .

FTP , / .

telnet - .

SMTP .

POP3 .

IMAP4 .

ARP .

HTTP (WWW) .

RIP , .

IP - , , - .





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