1. NETWORKING COMPONENTS Mujeeb Alikhan LTEC 4550

2. Hub A hub connects to multiple computers in a network. When traffic is transmitted thru the hub all devices on the network receives that packet – high chances of collision. This device is used behind a router to add extra ports to the network so that more devices can be added. Cost rang can be as low as $5 - $100. router Hub hub

3. Switch A switch is an intelligent hub. Switch is used to connect multiple devices to a network. When a packet comes to a switch, it knows which devices it needs to send the packet too. Whereas a hub, it broadcast the packet to all devices on a network. Cost rang can be as low as $10 - $400 router switch nodes Netgear switch

4. Router Router is a device that is between internet and computer. Router connects to ISP network, authenticates and passes the internet connection to the user computer. Cost range $20 - $499. Dsl router computer router

5. Bridge Easiest way to put bridge as a small version of switch. It only has one port in and one port out. It performs same function as a switch. The only difference is switch has more ports. Price range $ 20 – 200. bridge

6. Gateway A Gateway is a device that allows local network to access outside world (internet). Now a days we see routers are also gateways. Cost range $50 (basic residential) to very large ISP level up to $13000 2wire residential gateway

7. Firewall Firewall is placed between internet and private network. Firewall restrict unwanted traffic to go to local network and it also restrict access from local network to internet. Firewall prevents hacker access private networks. Cost range $100 - $40,000 ( very high end firewall)

8. Wireless AP Wireless access point allows internet connection to be shared from modem to other devices at home/business wirelessly. Cost range $50 - $500

9. All-in-one Network Motorola NVG 510 Router Build-in wireless AP “N” wifi Build-in firewall Build-in DSL modem 4 Ethernet ports Default gateway Optional external firewall 8 port switch for 8 computers Ethernet cable computers Now a days we many things build into 1 device. With the above set up, there should be no use to use a bridge and hub. They pretty much became old technologies.