Presentation on theme: "NET0183 Networks and Communications Lecture 23 UDP: a transport layer protocol 8/25/20091 NET0183 Networks and Communications by Dr Andy Brooks Lecture."— Presentation transcript:
8/25/2009 NET0183 Networks and Communications by Dr Andy Brooks 2 The recommended textbook is Computer Networks and Internets by Douglas E. Comer http://www.coursesmart.com/0136066992/?a=1773944 www.pearson-books.com/student (for additional discounts and offers) http://www.coursesmart.com/0136066992/?a=1773944 www.pearson-books.com/student
3 http://skogberg.eu/ia/img/protocolStack.png Two important protocols in the transport layer are TCP and UDP. TCP Transmission Control Protocol UDP User Datagram Protocol DHCP is an application layer protocol....just another protocol stack diagram
Some applications that use UDP Real-time audio and video streaming protocols use UDP because they can handle occasional lost packets. – e.g. RTP (Real-time Transport Protocol) DNS (Domain Name System) – provides the IP address of a domain name DHCP (Dynamic Host Configuration Protocol) – allocates an IP address to a host RIP (Routing Information Protocol) – “The routing algorithm used in RIP, the Bellman-Ford algorithm, was first deployed in a computer network in 1967, as the initial routing algorithm of the ARPANET.” Routing Information Protocol @ Wikipedia 15/3/10algorithmBellman-Ford algorithmARPANET 18 NET0183 Networks and Communications by Dr Andy Brooks 8/25/2009
NET0183 Networks and Communications by Dr Andy Brooks 19 http://i.techrepublic.com.com/blogs/ip-encap.png Data Link Layer (OSI Model) Physical Layer (OSI Model)...just another protocol stack diagram
8/25/2009 NET0183 Networks and Communications by Dr Andy Brooks 20 http://en.wikipedia.org/wiki/Internet_Protocol_Suite... how many protocols do you know?