The TCP/IP is part of the Internet Protocol Suite. Inside the Internet Protocol Suite there are five layers which work together to make the network environment work. These five layers are Application Layer, Transport Layer, Network Layer, Data Link Layer, and Physical Layer. TCP works in the transport layer breaking the data that needs to be send to small parts. Basically it links the application layer with other lower layers. IP however is located in the Network Layer which correspond as address in the networking world.
Open System Interconnection or OSI is basically an older version of TCP/IP or can also be said the early design of Internet Protocol Suite. It has 7 layers of protocol. OSI is then simplified and further compress into 5 layers and is name TCP/IP.
COMPARISON
Focus of Reliability Control
1.Implementation of the OSI model places emphasis on providing a reliable data transfer service, while the TCP/IP model treats reliability as an end-to-end problem.
2.Each layer of the OSI model detects and handles errors, all data transmitted includes checksums. The transport layer of the OSI model checks source-to-destination reliability.
3.In the TCP/IP model, reliability control is concentrated at the transport layer. The transport layer handles all error detection and recovery. The TCP/IP transport layer uses checksums, acknowledgments, and timeouts to control transmissions and provides end-to-end verification.
Roles of Host System
Hosts on OSI implementations do not handle network operations (simple terminal), but TCP/IP hosts participate in most network protocols. TCP/IP hosts carry out such functions as end-to-end verification, routing, and network control. The TCP/IP internet can be viewed as a data stream delivery system involving intelligent hosts.
No comments:
Post a Comment