This presentation briefly focuses on fast ethernet, gigabit ethernet and switched ethernet.

1. ETHERNET -BY 09BIT059 (MIHIKA SHAH)

3. Known as DIX ethernet

4. IEEE standardized 802.3

5. Uses manchester encoding

6. Ethernet framing

9. IEEE created Fast Ethernet under the name 802.3u.

11. Fast Ethernet Implementation

14. Point-to-point, between two computers or one computer – to –switch.

15. It supports two different modes of operation: full duplex mode and half duplex mode.

16. full duplex is used when computers are connected by a switch.

19. Collision in hub is possible and so CSMA/CD is required.

21. Frame Bursting allows a sender to transmit a concatenated sequence of multiple frames in a single transmission.

23. SWITCHED ETHERNET

25. When a station wants to transmit a frame,it outputs a frame to switch.The plug-in card checks to see if the frame is for the other station on the same card.

27. It depends in how the card is constructed. All ports on the same card are wired together to form a local on-card LAN.

28. Collisions on this on-card LAN are detected and handled using CSMA/CD protocol.

30. In other design, each input port is buffered, so incoming frames are stored in the card’s on board RAM.