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Functions of OSI layer
Transcript of Functions of osi layer in computer networks
- 1. FUNCTIONS OF OSI LAYERS T S Pradeep Kumar VIT Chennai
http://www.pradeepkumar.org
- 2. PHYSICAL LAYER Representation of bits Data Rate
Synchronization of bits line configuration physical topology
Transmission mode Eg: IEEE802.1x, PON, OTN, DSL, USB, Bluetooth,
etc
- 3. DATA LINK LAYER Framing physical addressing flow control
error control access control Eg: LLC, Frame relay, PPP, ATM,
- 4. NETWORK LAYER logical addressing routing Eg: IPv4, IPv6,
ICMP, IGMP, IPX, AppleTalk
- 5. TRANSPORT LAYER Service point addressing segmentation and
reassembly connection control flow control error control TCP, UDP,
SCTP, DCCP
- 6. SESSION LAYER dialog control synchronization Named Pipe,
NetBIOS, RTP, SOCKS
- 7. PRESENTATION LAYER translation encryption compression MIME,
XDR
- 8. APPLICATION LAYER network virtual terminal file transfer,
access and management email services directory services NFS, SMTP,
SNMP, Telnet, DHCP, HTTP, FTP
- 9. Questions????