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

2. Generations of Ethernet

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

4. 802.3 MAC Frame

5. Minimum and Maximum Length

6. Physical Layer

7. AUI

8. Categories of traditional ethernet

9. 10Base5

10. 10Base-T

11. 10Base-FL

12. Network Ethernet bridging

13. Collision Domains

14. Switched Ethernet

15. Full Duplex switched Ethernet

16. 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

17. Gigabit Ethernet

18. Gigabit Implementation

19. 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

20. 1000Base-T implementation