CIT 307 Online Data Communications Local Area Networks Module 12 Kevin Siminski, Instructor.

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Presentation transcript:

CIT 307 Online Data Communications Local Area Networks Module 12 Kevin Siminski, Instructor

Generations of Ethernet

Traditional Ethernet (802.3) MAC Sublayer Physical Layer Physical Layer Implementation Bridged Ethernet Switched Ethernet Full-Duplex Ethernet

802.3 MAC Frame

Minimum and Maximum Length

Physical Layer

AUI

Categories of traditional ethernet

10Base5

10Base-T

10Base-FL

Network Ethernet bridging

Collision Domains

Switched Ethernet

Full Duplex switched Ethernet

Hub versus Switched Ethernet Hub – Large collisions domains – Shared bandwidth for domains – 10Mb network realistically capable of support 5-6Mb maximum Switched – Collision domains are dedicated – Dedicated bandwidth – 100Mb network can achieve line rate – Majority of the devices today being implemented are based on switched ethernet

Gigabit Ethernet

Gigabit Implementation

Implementation in networks Can use traditional CAT5 or CAT5e twisted pair cabling Can use Fiber optic cable but it is typically more expensive Becoming the new standard in ethernet – vendors like Intel are embedding the NIC on their new motherboards

1000Base-T implementation