Networking Standards CPSC 330 - Fall 2002 some of the IEEE 802 working groups 802.3 Ethernet - LAN architecture developed by Xerox Corporation in cooperation with DEC and Intel in 1976, uses a bus or star topology 802.3 10Base5 (original Ethernet) - thick coax, rates of 10 Mbps 10Base2 (thin Ethernet) - thin coax, rates of 10 Mbps 802.3u 100Base-T (Fast Ethernet) - twisted-pair, rates of 100 Mbps 100Base-F (Fast Ethernet) - fiber, rates of 100 Mbps 802.3z Gigabit Ethernet - rates of 1 Gbps 802.5 IBM token ring 802.11 wireless LANs - called "Wi-Fi" (wireless fidelity) 802.11a - rates up to 54 Mbps using the 5 GHz radio band, range of 20 meters 802.11b - rates up to 11 Mbps using the 2.4 GHz radio band, range of 100 meters (not compatible with 802.11a) 802.11g - rates up to 54 Mbps using the 2.4 GHz radio band, range of 50 meters (speed upgrade of 802.11b) (5 GHz is not as crowded with other devices like cordless phones, but 802.11a devices are more expensive than 802.11b/g devices) 802.15 personal area network - called "Bluetooth" rates of 1-2 Mbps on 2.4 GHz radio band, range of 100 meters 802.16 broadband wireless - called "WiMax" for Worldwide Interoperability for Microwave Access 802.16a - rates up to 70 Mbps over 30 miles, in 2-11 GHz range (also BWA = broadband wireless access) some of the modem standards for analog telephone subscriber lines V.24 - current version of RS-232 interface V.21-V.29 - 300-9600 bps V.32 - 9600 bps (at 2400 baud, with error correction) V.32 bis - 14400 bps (at 2400 baud, with error correction, fax modems) V.34 - 28800 bps (at 2400 baud, with error correction) V.34 bis - 33600 bps (at 2400 baud, with error correction) V.90 - 22600 bps upstream, 56000 bps downstream V.92 - 48000 bps upstream, 56000 bps downstream, faster line speed negotiation, allows incoming call to interrupt Internet session if phone has call waiting DOCSIS - data over cable service interface specification (cable modem) some of the IETF (Internet Engineering Task Focre) RFCs (Request for Comments) 822 basic email 854 telnet 959 ftp 1342 MIME (multipurpose internet mail extension) updated in RFCs 2045-2049 1661 PPP (point-to-point protocol) 1939 POP3 (post office protocol version 3) 2109 cookies 2616 HTTP