Layer Overview Objectives Protocols/Mechanisms Supports network Types of layer applications, messages message exchanged Message syntax e.g. FTP, SMTP, HTTP, DNS Message semantics Assumes that for when socket is box and how so just pick up the applications send data. Therefore, & respond to transport messages should take note of reliability, throughput, delay and security Process-to-process Data Integrity Reliable data transfer data transfer Handle segment e.g., TCP, UDP delays/reordering Throughput Security Routing of Delivers packets DHCP NAT datagrams from to receiving hosts CIDR IP datagram source to RIP Fragmentation destination, ICMP
Layer Overview Objectives Protocols/Mechanisms message Supports network applications, e.g. FTP, SMTP, HTTP, DNS Assumes that socket is box so just pick up the data. Therefore, transport layer should take note of reliability, throughput, delay and security Types of messages exchanged Message syntax Message semantics for when and how applications send & respond to messages segment Process-to-process data transfer e.g., TCP, UDP Data Integrity Reliable data transfer Handle delays/reordering Throughput Security datagram Routing of datagrams from source to destination, Delivers packets to receiving hosts DHCP CIDR RIP NAT IP Fragmentation ICMP
CS2105%20-%20Revision.docx