1. Network Hardware Local Area Networks Metropolitan Area Networks
Wide Area Networks
Wireless Networks
Home Networks
Internetworks

2. Broadcast Networks Types of transmission technology Broadcast links
Point-to-point links

3. Broadcast Networks (2)
Classification of interconnected processors by scale.

4. Local Area Networks
Two broadcast networks
(a) Bus
(b) Ring

5. Metropolitan Area Networks
A metropolitan area network based on cable TV.

6. Wide Area Networks
Relation between hosts on LANs and the subnet.

7. Wide Area Networks (2)
A stream of packets from sender to receiver.

8. Wireless Networks Categories of wireless networks:
System interconnection
Wireless LANs
Wireless WANs

9. Wireless Networks (2)
(a) Bluetooth configuration
(b) Wireless LAN

10. Wireless Networks (3)
(a) Individual mobile computers
(b) A flying LAN

11. Home Network Categories
Computers (desktop PC, PDA, shared peripherals
Entertainment (TV, DVD, VCR, camera, stereo, MP3)
Telecomm (telephone, cell phone, intercom, fax)
Appliances (microwave, fridge, clock, furnace, airco)
Telemetry (utility meter, burglar alarm, babycam).

12.  The McGraw-Hill Companies, Inc., 1998
Figure 2-4
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

13. Mesh Topology  The McGraw-Hill Companies, Inc., 1998 Figure 2-5
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

14. Star Topology  The McGraw-Hill Companies, Inc., 1998 Figure 2-6
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

15. Tree Topology  The McGraw-Hill Companies, Inc., 1998 Figure 2-7
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

16. Bus Topology  The McGraw-Hill Companies, Inc., 1998 Figure 2-8
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

17. Ring Topology  The McGraw-Hill Companies, Inc., 1998 Figure 2-9
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

18. Hybrid Topology  The McGraw-Hill Companies, Inc., 1998 Figure 2-10
WCB/McGraw-Hill
 The McGraw-Hill Companies, Inc., 1998

19. Modes of Communication
Simplex
Half-Duplex
Full-Duplex

20. Topics Discussed in the Section
Repeaters
Bridges
Routers
TCP/IP Protocol Suite

21. Figure 3.40 Connecting devices
TCP/IP Protocol Suite

22. Figure Repeater or hub
TCP/IP Protocol Suite

23. A repeater forwards every bit; it has no filtering capability.
Note
A repeater forwards every bit; it has no filtering capability.
TCP/IP Protocol Suite

24. A bridge has a table used in filtering decisions.
Note
A bridge has a table used in filtering decisions.
TCP/IP Protocol Suite

25. A bridge does not change the physical (MAC) addresses in a frame.
Note
A bridge does not change the physical (MAC) addresses in a frame.
TCP/IP Protocol Suite

26. Figure Bridge
TCP/IP Protocol Suite

27. Figure 3.43 Learning bridgeM M M M
TCP/IP Protocol Suite

28. A router is a three-layer (physical, data link, and network) device.
Note
A router is a three-layer (physical, data link, and network) device.
TCP/IP Protocol Suite

29. A repeater or a bridge connects segments of a LAN.
Note
A repeater or a bridge connects segments of a LAN.
A router connects independent LANs or WANs to create an internetwork (internet).
TCP/IP Protocol Suite

30. Figure 3.44 Routing example
TCP/IP Protocol Suite

31. A router changes the physical addresses in a packet.
Note
A router changes the physical addresses in a packet.
TCP/IP Protocol Suite

32. Hub
Broadcast
More collision
Connect same networking device

33. Switch Switch is intelligent device Learning the address Forwarding
Work on mac address

34. Router
Connect different networks
Routing