•Piece of the total data to be
communicated, combined with the address of the destination computer for the
data and other control information.
Network
Addresses•Address
•Four-part set of numbers
•Each from 0 to 255
•Internet Service Providers (ISPs)
•User connects through common carrier
•Serial Line Internet Protocol (SLIP) and
Point-to-Point Protocol (PPP)
•Protocols for users at home
Protocols for Public Phone Systems
Protocols for Public Phone Systems
•X.25
•analog
•older protocol
•Integrated Services Digital Network
(ISDN)
•Digital
•Can carry voice, data, and video
•
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