The Internet Protocols. COMT 429. History. 1969 First version of a 4 node store and forward network, the ARPAnet 1972 Formal demonstration of ARPAnet with 20 packet switches and 50 hosts
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1969 First version of a 4 node store and forward network, the ARPAnet
1972 Formal demonstration of ARPAnet with 20 packet switches and 50 hosts
mid-70s UNIX distributed to academic and research sites. DEC PDP-11 systems gain wide acceptance. Initial research on TCP.
1980 DEC VAXs appear and replace PDP-11. Berkley UNIX provided with TCP implementation.
1983 ARPAnet goes to TCP full-time. Sun Computers incorporate TCP/IP.
E-Mail HTTP (WWW) Remote Login
IP ICMP ARP RARP
Ethernet, X.25, HDLC etc.
TCP: Connection Oriented
Data Link Layer and Physical Network
Depends on the network
Class of Service
Window (flow cntrl)
IP Addresses are 32 bits long, originally using one of three
0NNNNNNN HHHHHHHH HHHHHHHH HHHHHHHH
10NNNNNN NNNNNNNN HHHHHHHH HHHHHHHH
110NNNNN NNNNNNNN NNNNNNNN HHHHHHHH
N = Network Address Bit
H = Host Address Bit
Operations and Management