25
Networking and Internetworking Devices ดด. ดดดดดด ดดดดดดด Anan Phonphoem, Ph.D. [email protected] http://www.cpe.ku.ac.th/~anan Computer Engineering Department Kasetsart University, Bangkok, Thailand

Networking Devices

Embed Size (px)

Citation preview

Page 1: Networking Devices

Networking and Internetworking Devices

ดร. อนั�นัต์� ผลเพิ่ �มAnan Phonphoem, Ph.D.

[email protected]

http://www.cpe.ku.ac.th/~anan

Computer Engineering Department

Kasetsart University, Bangkok, Thailand

Page 2: Networking Devices

2/ 25

Outline Network Devices

Repeater/Hub/Bridge/Router/Gateway Backbone Network

Bus/Star/VLAN

Page 3: Networking Devices

Connecting Devices

Networking Devices

Repeaters Bridges

InternetworkingDevices

Routers Gateways

Page 4: Networking Devices

4/ 25

Connecting Devices

Hub

Page 5: Networking Devices

5/ 25

Repeater

• Extend the physical length• No network function has been changed• Location is matter

Page 6: Networking Devices

6/ 25

Function of repeater

Repeater is not exactly as same as Amplifier

Page 7: Networking Devices

7/ 25

Hub

• Actually is a multiport repeater• Star / Tree Topology

Page 8: Networking Devices

8/ 25

Bridge

Page 9: Networking Devices

9/ 25

Bridge Divide a large network into smaller

segment Isolating and controlling the link

problems (e.g. congestion) Regenerate signal + Checking

Physical Address and forward only to the specified segment

Page 10: Networking Devices

10/ 25

Function of a bridge

Page 11: Networking Devices

11/ 25

Multiport bridge

Page 12: Networking Devices

12/ 25

Routers

Page 13: Networking Devices

13/ 25

Routers in an internet

Page 14: Networking Devices

14/ 25

Routers Act like stations on a network Multi-home Definition (Goal)

“Learning how to get from here to there."

“Process of discovering, selecting, and employing paths from one place to another (or to many others) in a network” [from David M. Piscitello, Bellcore and A. Lyman Chapin, BBN]

Page 15: Networking Devices

15/ 25

Routing Principle Goal: Arriving at the

destination Considerations:

Direct route (shortest) Reliable route Cheap route Safe route Scenic route

Page 16: Networking Devices

16/ 25

Gateways (protocol converter)

Page 17: Networking Devices

17/ 25

A gateway

SNA network (IBM)Netware network (Novell)

Page 18: Networking Devices

Connecting Devices

Networking Devices

Repeaters Bridges

InternetworkingDevices

Routers Gateways

Page 19: Networking Devices

19/ 25

Other devices Multiprotocol routers Brouters Switches Routing switches

Page 20: Networking Devices

20/ 25

Single VS. Multiprotocol router

Page 21: Networking Devices

21/ 25

Brouter

Page 22: Networking Devices

22/ 25

Backbone Network

Bus Backbone

Star Backbone

Page 23: Networking Devices

23/ 25

Connecting Remote LAN

A point-to-point link acts as a LAN in a remote backbone connected by remote bridges

Page 24: Networking Devices

24/ 25

Virtual LAN (VLAN)

VLANs create broadcast domains

Page 25: Networking Devices

25/ 25

VLAN with backbone switch