networking
DESCRIPTION
TRANSCRIPT
11
99thth Grade Computer Grade ComputerScience RotationScience Rotation
Mr. Fedder/Mr. CrowleyMr. Fedder/Mr. Crowley
22
NetworkingNetworking
History of ComputersHistory of Computers
Computer Architecture Computer Architecture Hardware & NetworkingHardware & Networking SoftwareSoftware
44
Networking: TermsNetworking: Terms
DomainDomainDownloadDownloadUploadUploadtraceroutetraceroutepingpingWAN/LANWAN/LANFTPFTPEncapsulationEncapsulation
PacketPacketRouterRouterTCP/IPTCP/IPDNSDNSBandwidthBandwidthBaudBaudKBKBMbpsMbps
55
History of NetworkingHistory of Networking
1994 - 1994 - TimeTime magazine: “It was not magazine: “It was not designed for doing commerce, and it designed for doing commerce, and it does not gracefully accommodate new does not gracefully accommodate new arrivals.” arrivals.”
1995 –1995 –NewsweekNewsweek: “BAH!” … “baloney.”: “BAH!” … “baloney.”
““THE INTERNET?”THE INTERNET?”
66
History of Computers – History of Computers – NetworkingNetworking
Arpanet - 1969
77
History of Computers – History of Computers – NetworkingNetworking
Vinton Cerf Bob Kahn
Tim Berners-Lee
88
Internet TimelineInternet Timeline
MosaicBrowser
1993
DarpaNet1969
Berners-Lee1989
99
19911992
Jan. 1993
Internet Connectivity - GrowthInternet Connectivity - Growth
Feb. 1994Nov. 1994Jun. 1996Jun. 1997
1010
Networking - AddressingNetworking - Addressing URLURL
http://www.friendscentral.org/default.asp
File NameServer NameService Name
Mailbox Name
Domain Name Top-Level Domain
E-MailE-Mail
Top-Level DomainDomain Name
1111
Networking – DomainsNetworking – Domains
Domain HierarchyDomain Hierarchy
1212
Networking – DomainsNetworking – Domains
65.61.134.112
http://www.friendscentral.org
org
org
1313
Networking - TypesNetworking - Types
1414
Networking - InternetNetworking - Internet
1
2
3 54
““Network of Networks”Network of Networks”
1515
Networking – RoutingNetworking – Routing
2
3 4 5
6
Google1
FCSSingle Point of Failure
1616
Networking – RoutingNetworking – Routing
1717
Zeus
IP: 192.168.2.161
IP: 192.168.1.5
63.139.238.193
192.168.100.100 216.239.49.214
www.google.com
64.233.161.99
64.233.161.99
Name Server
1818
TracerouteTracerouteZeus
192.168.100.100
63.139.238.193216.239.49.214
64.233.161.99
1919
Networking – Communication StackNetworking – Communication Stack Open Systems InterconnectionOpen Systems Interconnection
2121
Networking – HardwareNetworking – Hardware Network Interface Card (NIC)Network Interface Card (NIC)
2222
Networking – HardwareNetworking – Hardware HUBHUB
2323
Networking – Data CommunicationNetworking – Data Communication
2424
Networking – Data Networking – Data EncapsulationEncapsulation
Data:
Network:
Name, Address, Phone, Visa, 0231234490987111
Transport:
TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info
TCP info Name, Address, Phone, Visa, 0231234490987111 TCP infoAddress Address
“Segment”
“Packet”
How Many Packets?What Order?
Where did I come from?
Where do I go?
Transmission Control Protocol
Internet Protocol
2525
Address
Router Router
Internet
Hub
TCP info TCP infoAddress AddressDATA
Networking – Packet TransmissionNetworking – Packet Transmission
Data Data EncapsulationEncapsulation
TCP info TCP info Address
“Packet”
DATA
TCP info TCP infoAddress AddressDATA
DATA
Hub
SOURCE
DESTINATION
“Segment”
2626
Networking – CommunicationNetworking – Communication
2727
Networking: TermsNetworking: Terms
DomainDomainDownloadDownloadUploadUploadtraceroutetraceroutepingpingWAN/LANWAN/LANFTPFTPEncapsulationEncapsulation
PacketPacketRouterRouterTCP/IPTCP/IPDNSDNSBandwidthBandwidthBaudBaudKBKBMbpsMbps