HUBS

HUBS:-

Hub is a repeater with multiple ports simply receivers the data from one port and sends the data to all the ports

Hub allows multiple devices to be connected from a single network segment.

Hub operates Physical Layer(Layer 1)

Active hubs regenerate signals

Hubs utilize star topology

Advantages

As an active hubs regenerate signals, it increases the distance that can be spanned by the LAN (up to 100 meters per segment)

Hubs can also be connected locally to a maximum of two other hubs, thereby increasing the number of devices that can be attached to the LAN

Active hubs are usually used against attenuation, which is a decrease in the strength of the signal over distance.

Disadvantages

Bandwidth is shared by all hosts i.e. 10Mbs shared by 25 ports/users.

Have no layer 3 switching capability.

There is no amplifier the signal

Network traffic

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