Networking and Internetworking Devices ดร. อนันต์ ผลเพิ่ม Anan Phonphoem, Ph.D. Computer Engineering Department.

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Presentation transcript:

Networking and Internetworking Devices ดร. อนันต์ ผลเพิ่ม Anan Phonphoem, Ph.D. Computer Engineering Department Kasetsart University, Bangkok, Thailand

2/ 25 Outline Network Devices Repeater/Hub/Bridge/Router/Gateway Backbone Network Bus/Star/VLAN

Connecting Devices Networking Devices RepeatersBridges Internetworking Devices RoutersGateways

4/ 25 Connecting Devices Hub

5/ 25 Repeater Extend the physical length No network function has been changed Location is matter

6/ 25 Function of repeater Repeater is not exactly as same as Amplifier

7/ 25 Hub Actually is a multiport repeater Star / Tree Topology

8/ 25 Bridge

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

10/ 25 Function of a bridge

11/ 25 Multiport bridge

12/ 25 Routers

13/ 25 Routers in an internet

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]

15/ 25 Routing Principle Goal: Arriving at the destination Considerations: Direct route (shortest) Reliable route Cheap route Safe route Scenic route

16/ 25 Gateways (protocol converter)

17/ 25 A gateway SNA network (IBM) Netware network (Novell)

Connecting Devices Networking Devices RepeatersBridges Internetworking Devices RoutersGateways

19/ 25 Other devices Multiprotocol routers Brouters Switches Routing switches

20/ 25 Single VS. Multiprotocol router

21/ 25 Brouter

22/ 25 Backbone Network Bus Backbone Star Backbone

23/ 25 Connecting Remote LAN A point-to-point link acts as a LAN in a remote backbone connected by remote bridges

24/ 25 Virtual LAN (VLAN) VLANs create broadcast domains

25/ 25 VLAN with backbone switch