Rabu, 23 Desember 2015

Sistem Terdistribusi



3.4 Make a table similar to Figure 3.5 describing the work done by the software in each protocol layer when Internet applications and the TCP/IP suite are implemented over an Ethernet.

Answer :

Layer
Description
Examples
Application
Protocols that are designed to meet the communication requirements of
specific applications, often defining the interface to a service. network
representation that is independent of the representations used in individual
computers. Encryption is performed in this layer.

HTTP, FTP,
SMTP,
CORBA IIOP,
Secure Sockets
Layer, CORBA
Data Rep

Transport
UDP: checksum validation, delivery to process ports. TCP: segmentation, flow
control, acknowledgement and reliable delivery.

TCP, UDP

Network
IP addresses translated to Ethernet addresses (using ARP). IP packets
segmented into Ether packets.

IP

Data link
Ethernet CSMA CD mechanism
Ethernet MAC

layer

Physical Various Ethernet transmission standards
Ethernet base-
band signalling