1. Telemedicine

2. Hardware Classifying the networks Transmission Technology Scale
Point to Point Links
Broadcast Links

3. Point to Point Sending a message to a friend In small forms of notes
Different paths
Problem of choosing the shortest path
Linking couples…
Transmission of PACKETS
Different paths, different prices
HOW SHOULD WE FIND THE SHORTEST PATH?
Unicast

4. Broadcast Common communication channel Ex. Wireless Networks
Address Field  Too Important
Multicast

5. Unicast, Broadcast, Multicast

6. Scale of the networks

7. Scale of the networks

8. Scale of the network

9. BAN (Body Area Network)
LET’S GO SEE WHAT THE BOOK HAS TO OFFER.
IMPLANTABLE DEVICES
IEEE

10. PAN (Personal Area Network)
Bluetooth networks (IEEE )
One Master, Multi Slaves (Wirelessly)
Master to Slave, NO Slave to Slave
RFID  HOMEWORK

11. LAN (Local Area Network)
1 to 2 KM
100 Mbps to 10 Gbps
Ethernet (IEEE 802.3)

12. Ethernet Cable named BUS Computers Using Hub to Extend Collision
Arbitration
Switched Ethernet

13. WLAN Wireless Local Area Network AP (Access Points) WIFI  IEEE 802.11
Switch or hub
WIFI  IEEE

14. VLAN
Virtual Local Area Network
Different parts of a company

15. HAN (Home Area Network)
Smart Homes
EXTENSIBILITY  IMPORTANT

16. Power Line Networks
LAN – WIFI …
Not used in IRAN.

17. CABLE TV
Both TV and Internet

18. WIMAX (MAN)

19. WAN (Wide Area Network)
Scale:
Country
Continent
All the world
Host
Subnet
Transmission Lines
Switching Equipments
Ex. PSTN (Public Switched Telephone Network)

20. WAN VPN  Connecting LAN s of different offices
Using Internet Links  Not Good
ISP (Internet Service Provider)
Giving service to a country  It has operators
All WANs  Routing Algorithms & Forwarding Algorithms
Satellite WANs
Mobile Telephones

21. Network of Networks internet or internet network Infrastructure
Internet vs internet
Internet  Specific concept

22. Keywords Gateway  Routers are also some kind of gateway
Routers  Connecting multiple networks
HOMEWORK  What is a router?