IST 233 Lecture Notes - Lecture 7: Subnetwork, Dot-Decimal Notation, Mac Address

• School: Syracuse University
• Department: Information Studies
• Course: IST 233
• Professor: David Molta

Document Summary

L2 switching versus l3 routers: ethernet switches, frame forwarding decisions are based on the destination mac address. Every switch need to store every mac address on the network, they are self-learning: (cid:449)it(cid:272)hi(cid:374)g is fast a(cid:374)d (cid:272)heap. Ho(cid:449)e(cid:448)er it is(cid:374)"t (cid:448)ery scalable, it lacks inherent redu(cid:374)da(cid:374)(cid:272)y a(cid:374)d it is(cid:374)"t appli(cid:272)atio(cid:374) a(cid:449)are. Expressed in same dotted decimal notation used in an ip address: 1 = network, 0=host, eight 1s is 255 decimal. Eight 0sid 0 decimal: dotted decimal would be 255. 255. 0. 0 (1s and 0s converted in decimal equivalents.