ITM 301 Lecture Notes - Coaxial Cable, Light-Emitting Diode, Digital Subscriber Line

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: benbarry

Document Summary

Immune to: emi, rfi, noise: typical distances, utp/stp 100m, coaxial, 10base2 185m, 10base5 500m, fiber 300m 40km. Osi tcp/ip: osi application (7), presentation (6), session (5), transport (4), network (3), data link (2), physical (1, tcp/ip application (http, smtp, dns, ftp) (this covers the 7th, 6th and 5th layers), Transport (tcp, udp), internet (ip, icmp, igmp), network interface (layer 2 and 1: ftp = port 21 (tcp), tftp = port 69 (udp), telnet = port 23 (tcp), smtp = port. 25, http = port 80, https = port 443, nntp (network news transport/transfer. Protocol) = port 119, pop3 = port 110, imap4 (internet mail access protocol) = Tcp: connection-oriented transport protocol, guarantees msg delivery, provides error detection, 65,353 ports. Vi: connection-less oriented protocol (broadcast, does not guarantee msg delivery, faster than tcp, no error detection/msg delivery (best effort, 65,353 ports, total for tcp/udp is 130,706. 11. 12. 18: class b: 128. 19. 11. 25 subnet mask = 255. 255. 0. 0 network id = 128. 19,