Table of Contents
Internetworking, or IP and Networking Basics
Outline
Origins of TCP/IP
Distributed Network Design
Simplified view of the Internet
What internetworks are
A small internetwork, or “internet”
The unifying effect of the network layer
Protocol Layers: The TCP/IP Hourglass Model
Frame, Datagram, Segment, Packet
Functions of layers in the OSI 7-layer protocol stack
Layer 1
Layer 2
Layer 3
Layer 3
Layer 3
Layer 4
Layer 5, 6, 7
Layer interaction: OSI 7-layer model
Layer interaction: TCP/IP Model
Layer interaction
Encapsulation
Layer 2 - Ethernet frame
Layer 3 - IP datagram
Layer 4 - TCP segment
Purpose of an IP address
Basic Structure of an IP Address
Address Exercise
Address Exercise
Addressing in Internetworks
Address Structure Revisited
Network Masks
Example Prefixes
Special Addresses
More Address Exercises
Binary arithmetic tutorial
Grouping of decimal numbers
Grouping of binary numbers
Grouping of decimal numbers
Grouping of binary numbers
Grouping of binary numbers
More levels of address hierarchy
Old-style classes of IP addresses
Old-style classes of IP addresses
Implied netmasks of classful addresses
Traditional subnetting of classful networks
Traditional supernetting
Classless addressing
Classless addressing example
Classless addressing exercise
An IP router
IP router - action for each packet
Forwarding is hop by hop
Hop by Hop Forwarding
Router Functions
Forwarding table structure
Encapsulation (reminder)
Classes of links
Point to point links
Broadcast links
Broadcast links
NBMA links (Non-broadcast multi-access)
Ethernet Essentials
Ethernet/IP Address Resolution
Address Resolution Protocol
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