Internet Architecture Two computers, anywhere in the world, following certain hardware, software,...

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Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even when not directly connected. LANs are no longer scalable beyond a certain number of stations or geographic separation.

Transcript of Internet Architecture Two computers, anywhere in the world, following certain hardware, software,...

Page 1: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

Internet Architecture

Two computers, anywhere in the world, following certain hardware,

software, protocol specifications, can communicate, reliably even when not

directly connected.

LANs are no longer scalable beyond a certain number of stations or

geographic separation.

Page 2: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

IP Address as a 32-Bit Binary Number

Internet Addresses

Page 3: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

Decimal Equivalents of 8-Bit Patterns

Page 4: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

Binary and Decimal Conversion

Page 5: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

IP Address Classes

Page 6: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

IP Address Classes

Page 7: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

IP Addresses as Decimal Numbers

Page 8: Internet Architecture Two computers, anywhere in the world, following certain hardware, software, protocol specifications, can communicate, reliably even.

Hosts for Classes of IP Addresses

Class A (24 bits for hosts) 224 - 2* = 16,777,214 maximum hosts

Class B (16 bits for hosts) 216 - 2* = 65,534 maximum hosts

Class C (8 bits for hosts) 28 - 2* = 254 maximum hosts

* Subtracting the network and broadcast reserved address