Network Equipments

Network Equipment

- Networking hardware includes all computers, peripherals, interface cards and other equipment needed to perform data-processing and communications within the network.

Type of Equipment

 File Server
 Workstation
 Network Interface Cards
 Concentrator/Hubs
 Repeater
 Bridges
 Routers
 Switch

Hubs

• Transmit all data received to all nod connected to the hub. Regardless to which device the data being sent to

• Lots of extra network traffic, network less efficient

Switch

• Identifies the device on the network for which the data is intended and sends the data to that node only

Repeaters

• to boost the signal with a device called a repeater. The repeater electrically amplifies the signal it receives and rebroadcasts it.

• can be separate devices or they can be incorporated into a concentrator.

• used when the total length of your network cable exceeds the standards set for the type of cable being used

Bridges

• A bridge monitors the information traffic on both sides of the network so that it can pass packets of information to the correct location The bridge manages the traffic to maintain optimum performance on both sides of the network

• It keeps information flowing on both sides of the network, but it does not allow unnecessary traffic through.

• can be used to connect different types of cabling, or physical topologies. They must be between networks with the same protocol.

• A network bridge connects multiple network segments.

• direct traffic to prevent head-on collisions, and is smart enough to know when to direct traffic along back

roads and shortcuts.

Router

• While bridges know the addresses of all computers on each side of the network, routers know the addresses of computers, bridges, and other routers on the network. Routers can even "listen" to the entire network to determine which sections are busiest -- they can then redirect data around those sections until they clear up.

Routers can:

• Direct signal traffic efficiently

• Route messages between any two protocols

• Route messages between linear bus, star, and starwired ring topologies

• Route messages across fiber optic, coaxial, and twisted-pair cabling

• a network node equipped for interfacing with

another network that uses different protocols

Gateways

– A protocol translation/mapping gateway interconnects networks with different network protocol technologies by performing the required protocol conversions.

# Conclusion, different of HUB, SWITCHES & ROUTERS

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