Flexible And Dynamic Forms Of Internetworking

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FLEXIBLE AND DYNAMIC INTERNETWORKING
ANIL REDDY
WILMINGTON UNIVERSITY

1 ABSTRACT
2 INTRODUCTION
3 HISTORY OF INTERNETWORKING
4 LEVELS INVOLVED IN BUILDING INTERNET
5 NAMING AND COMMUNICATION ON INTERNET
6 CONCLUSION
7 REFERRENCES
TABLE OF CONTENTS

ABSTRACT
In this paper, I have discussed the Flexible and Dynamic forms of Internetworking by focusing on history of internetworking along with LAN’s Routers, Hubs, switches with its networking/internetworking functions and summarizing the general nature of addressing schemes within the context of Internetworking and its naming and communications.

INTRODUCTION
An internetwork is a collection of individual networks, connected by intermediate
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Today, high-speed LANs and switched internetworks are becoming widely used, largely because they operate at very high speeds and support such high-bandwidth applications as voice and video conferencing.
Internetworking evolved as a solution to three key problems: isolated LANs, duplication of resources, and a lack of network management. Isolated LANS made electronic communication between different offices or departments impossible. Duplication of resources meant that the same hardware and software had to be supplied to each office or department, as did a separate support staff. This lack of network management meant that no centralized method of managing and troubleshooting networks existed (Universitat Koblenz Landau).

LEVELS INVOLVED IN BUILDING INTERNET
LOWEST LEVEL: ETHERNET SEGMENT
Ethernet segment consists of a collection of hosts connected by wires (twisted pairs) to a
Hub. It normally spans a room or floor in a building.
Its typical operations include,
• Each Ethernet adapter has a unique 48-¬‐bit address (MAC address).
• Hosts send bits to any other host in chunks called Frames.
• Now hub copies each bit from each port to every other port. Fig 2: Ethernet Segment (Carnegie Mellon University)

NEXT LEVEL: BRIDGED ETHERNET SEGMENT
The oldest type of internetworking device is called a bridge. Normally, a bridge is
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