tcp/ip model of networking. tcp/ip model - layers access internet transport application
TRANSCRIPT
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TCP/IP Model of Networking
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TCP/IP Model - Layers
Access
Internet
Transport
Application
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TCP/IP and Protocols
Application Layer
HTTP, HTTPS
FTP, TFTP
DHCP, DNS
POP3, SMTP, IMAP
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TCP/IP and Protocols
Transport Layer
TCP
UDP
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TCP/IP and Protocols
Internet Layer
IP
ICMP
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TCP/IP and Protocols
Access Layer
Ethernet
WiFi
Point to Point
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TCP/IP and Functions
Application Layer
Data is created and used
Client and/or Server Software
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Client Server Networks
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TCP/IP and Functions
Transport LayerTCP – 3 Way Handshake
UDP – Request, Send
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3 Way Handshake
Request
OK, Here are my Rules
OK, Fine
OK, Here are my Rules
Data
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TCP/IP and Functions
Internet LayerIP - Addressing of Nodes
IP – Best Path Delivery
ICMP – Diagnostic and ID
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TCP/IP and Functions
Access Layer
Local Delivery
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TCP/IP and Encapsulation
Application Layer
Produces Data
Encryption, Compression
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TCP/IP and Encapsulation
Transport Layer
Segments Data
Port Numbers Added
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Well Know Port NumbersApplication Port Number
FTP 20, 21
Telnet 23
SMTP 25
DNS 53
TFTP 69
HTTP 80
HTTPS 443
DHCP 546, 547
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TCP/IP and Encapsulation
Internet Layer
Adds IP Addresses
Now called a Packet
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SocketIP Address: Port Number
Or
URL: Port Number
https://10.140.100.63:5009
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TCP/IP and Encapsulation
Access Layer
Adds MAC Address for local delivery
Now called a Frame
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TCP/IP and Dencapsulation
Access Layer
Reads MAC Address
Checks for Errors
Should I read it?
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TCP/IP and Decapsulation
Internet Layer
Reads IP Address
Should I read it?
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TCP/IP and Decapsulation
Transport Layer
Reads Port Number
TCP – Put message together
Which App should I send it to?
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TCP/IP and Decapsulation
Application Layer
Uses Data
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There and Back Again
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