1. Pertemuan 7 Introduction to LAN Switching and Switch Operation

2. Discussion Topics LAN segmentation LAN segmentation with bridges
LAN segmentation with routers
LAN segmentation with switches
Basic operations of a switch
Ethernet switch latency
Layer 2 and Layer 3 switching
Symmetric and asymmetric switching
Memory buffering

3. Discussion Topics con’t
Two switching methods
Functions of Ethernet switches
Frame transmission modes
How switches and bridges learn addresses
How switches and bridges filter frames
Why segment LANs?
Microsegmentation implementation
Switches and collision domains
Switches and broadcast domains
Communications between switches and workstations

4. LAN Segmentation
Segmentation allows network congestion to be significantly reduced within each segment.

5. LAN Segmentation with Bridges

6. LAN Segmentation with Routers

7. LAN Segmentation with Switches

8. LAN Switching Basics

9. LAN Switch Operation

10. Ethernet Switch Latency

11. Layer 2 Switching

12. Layer 3 Switching

13. Symmetric Switching

14. Asymmetric Switching

15. Memory Buffering Port-based memory buffering Shared-memory buffering
Packets are stored in queues that are linked to specific incoming ports.
It is possible for a single packet to block all other packets because its destination port is busy (even if the other packets could be delivered).
Shared-memory buffering
All packets use a common memory buffer.
Packets in the buffer are then linked (mapped) dynamically to the appropriate destination port.
Helps balance between 10- and 100-Mbps ports.

16. Two Switching Methods

17. Store-and-forward

18. Cut-through

19. Functions of Ethernet Switches

20. Frame Transmission Modes

21. Network Switch Using CAM

22. How Switches and Bridges Filter Frames

23. Microsegmentation of the Network
A switch employs “microsegmentation” to reduce the collision domain on a LAN. The switch does this by creating dedicated network segments, or point-to-point connections.

24. Switches and Collision Domains
The network area where frames originate and collide is called the collision domain. All shared media environments are collision domains.

25. Three Methods of Communication

26. Switches and Broadcast Domains
Broadcasting is when one transmitter tries to reach all the receivers in the network. The server station sends out one message, and everyone on that segment receives the message.

27. Communication Between Switches and Workstations