Network Fundamentals
Network
Physical
Data Link
Transport
High Level Data Link Control (HDLC) and Synchronous Data Link Control (SDLC)
Logical Link Control (LLC) and Media Access Control (MAC)
Distance Vector and Link State
RS-232 and RS-530
Network
Physical
Data Link
Transport
Network
Physical
Data Link
Transport
Defense Intelligence Agency
Defense Information System Agency
Defense Information Systems Network
Department of Defense Information Networks
The customer
Security Manager
National Security Agency
Communications Squadron
Connection Oriented and Connectionless Oriented
Classful and Connectionless Oriented
Connectionless Oriented and Classless
Classful and Classless
Authorization
Connection establishment
Establishment of a clear channel
End-to-end connectivity between host applications
Data receive message
Sliding Window
Buffer
Socket
Source Port, Destination Port, Length, Checksum, Data
Source Port, Destination Port, Length, Windowing, Data
Source Port, Destination Port, Length, Acknowledgement, Data
Channel Clear, Source Port, Destination Port, Length, Checksum, Data
16
32
64
128
Class A
Class B
Class C
Class D
Class C
Class D
Class E
Class F
Class C
Class D
Class E
Class F
0.0.0.0
127.0.0.1
207.55.157.255
255.255.255.255
Colon Hexadecimal Format
Dotted Decimal Notation
Hexadecimal
Octal
1024 to 49151
49152 to 65535
0 to 1023
0 to 1024
Port 80
Port 110
Port 443
Port 8080
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