Download - Modelo OSI camadas
Disciplina: Instalação e Configuração de Computadores
Trabalho elaborado por: Mário Lucas 8ºH
Physical – defines the characteristics of the physical
medium used to send and receive data bits.
Protocol and service- EIA/TIA 232 and 449, RJ45, Ethernet, CAT 5, X.21, HSSI
O modelo OSI camada 1
Data link – Translates PDUs from higher layers into
data frames. Defines the LLC and MAC sublayers.
Protocol and service – Frame Relay, PPP, HDLC, IEEE 802.2, 802.3, 802.5, FDDI, ATM, SDLC, LAPB, ISDN.
O modelo OSI camada 2
Netwark – concerned with end-to-end delivery of
data, logical addressing, and routing and how routesare identified.
Protocol and service – IP, IPX, and Apple Talk DDP
O modelo OSI camada 3
Transport – segments and reassembles data. Defines
reliable and unreliable data transmission, andconnection-oriented and connectionless protocols.
Protocol and Service – TCP, UDP, SPX
O modelo OSI camada 4
Session – Establishes, controls, and ends sessions.
Full-and half-duplex communications.
Protocols and Services – NFS, SQLM NetBIOS, Apple Talk, ASP, X Windows, RPC, DECNet SCP
O modelo OSI camada 5
Pressentation – Defines data formats, encluding
encryption, data conversion, audio/ visual, and graphics.
Protocol and Service – MPEG. HTML. MIDI, ASCII, EBCDIC, TIFF, GIF, PICT.
O modelo OSI camada 6
Application – Identifies and establishes availability
of communication partners. Determines whetherresources are sufficient for the communication to occur.
Protocol and Service – FTP, SMTP, Telnet, Web Browsers, CMIP, and Virtual Terminal Protocol
O modelo OSI camada 7
Thanks for yourattention