COMP247 Lecture Notes - Lecture 2: Distance Vector Multicast Routing Protocol, Carrier-Sense Multiple Access, Internet Group Management Protocol

• School: Macquarie University
• Department: Computing
• Course: COMP247
• Professor: Damian Jurd

Document Summary

The term computer system used rather than processor or computer because of the existence of multiprocessor systems. A node is one or more processors that collectively serve as a termination point for a communication link with another node. link: connects one node to an adjacent node, with no intervening nodes. Path (route): a group of links that allows a message to move from its point of origin to its destination. Why use a lan: resource sharing, information sharing. Having users access the same files, exchange information via email, or use internet e(cid:454): si(cid:374)gle pur(cid:272)hase order data(cid:271)ase a(cid:272)(cid:272)essed (cid:271)(cid:455) all users on the lan. Results in improved decision making: service sharing, ha(cid:448)i(cid:374)g hard(cid:449)are de(cid:448)i(cid:272)es shared (cid:271)(cid:455) all users, pri(cid:374)ters, i(cid:374)ter(cid:374)et (cid:272)o(cid:374)(cid:374)e(cid:272)tio(cid:374)s, ha(cid:448)i(cid:374)g soft(cid:449)are pa(cid:272)kages shared (cid:271)(cid:455) all users o(cid:374) a lan, results i(cid:374) redu(cid:272)ed (cid:272)ost. Lan components include nic- network interface card, cables, hubs and switches. Each computer has one nic for each network it is connected to.