Star Topology Definition
In star all computers area unit connected to a central computer. All communications between computers area unit done through the central computer. Central computer virtually act sort of a change system that connect communication computers. The most downside of star is, just in case the central computer fail, then the whole network fails. Furthermore since all computers try and communicate through the central computer, it becomes a bottleneck once traffic is high.
Star Topology Advantages and disadvantages:
The advantages of a star network are:
it is very reliable – if one cable or device fails then all the others will still work.
it is high-performing as no data collisions can occur.
The disadvantages of a star network are:
it is expensive to put in as this sort of network uses the foremost cable (network cable is expensive).
extra hardware is required (hubs or switches) which adds to cost.
if a hub or switch fails, all the devices connected thereto will haven't any network connection.
Now its the time to elaborate this sort of topology with the assistance of real world examples. this may assist you to know it during a far better way. After the entire understanding of it, i will be able to provide you with the applications and dealing mechanism of star . Following are the 2 main examples for depicting a typical star Setup.
Example 1: Star LAN
Some of you would possibly have noticed a locked box up different offices. This lock box contains a tool in it with different lights blinking everywhere it. you would possibly even have noticed a bunch of cable beginning of the box. Well that`s wired setup of star for you. this sort of thing is usually found in offices and computer labs. during this sort of scenario, each device within the Network features a Wired LAN Card. A patch cable connects each individual device to the central Hub. regardless of whether the Node may be a Server or Client or the other device like printer, scanner etc, you usually need patch cable to attach the device to the pc Network.
Example 2: Star Wireless LAN
Most of you've got Internet connection at your home or offices. In most of the cases today, we wish to use it with the assistance of WiFi. Internet Service Providers (ISPs) provide us with Wireless Modem. thanks to this fact, we've Wireless Modem at our home or office. When anybody wants to attach to the web there's no restriction on him/her in terms of location. Moreover, a Wireless Modem can spread signals throughout an area or group of rooms or maybe a building. So, we connect our laptops, tablet PCs and Smartphones to the Wireless Modem for accessing the web . Hence, all our devices hook up with one central device referred to as Hub. So, this is often probably the simplest Example of star .
Star Topology Examples
Now its the time to elaborate this sort of topology with the assistance of real world examples. this may assist you to know it during a far better way. After the entire understanding of it, i will be able to provide you with the applications and dealing mechanism of star . Following are the 2 main examples for depicting a typical star Setup.
Example 1: Star LAN
Some of you would possibly have noticed a locked box up different offices. This lock box contains a tool in it with different lights blinking everywhere it. you would possibly even have noticed a bunch of cable beginning of the box. Well that`s wired setup of star for you. this sort of thing is usually found in offices and computer labs. during this sort of scenario, each device within the Network features a Wired LAN Card. A patch cable connects each individual device to the central Hub. regardless of whether the Node may be a Server or Client or the other device like printer, scanner etc, you usually need patch cable to attach the device to the pc Network.
Example 2: Star Wireless LAN
Most of you've got Internet connection at your home or offices. In most of the cases today, we wish to use it with the assistance of WiFi. Internet Service Providers (ISPs) provide us with Wireless Modem. thanks to this fact, we've Wireless Modem at our home or office. When anybody wants to attach to the web there's no restriction on him/her in terms of location. Moreover, a Wireless Modem can spread signals throughout an area or group of rooms or maybe a building. So, we connect our laptops, tablet PCs and Smartphones to the Wireless Modem for accessing the web . Hence, all our devices hook up with one central device referred to as Hub. So, this is often probably the simplest Example of star .
Star Topology Uses
Star topology may be a networking setup used with 10BASE-T cabling (also called UTP or twisted-pair) and a hub. Each item on the network is connected to the hub like points of a star. The protocols used with star configurations are usually Ethernet or local-talk. Token Ring uses an identical topology, called the star-wired ring.
Star Topology is that the commonest sort of topology that's utilized in homes and offices. within the star there's a central connection point called the hub which may be a computer hub or sometimes just a switch. during a Star Network the simplest advantage is when there's a failure in cable then just one computer might get affected and not the whole network.
Star topology is employed to ease the possibilities of network failure by connecting all of the systems to a central node. This central hub rebroadcasts all transmissions received from any peripheral node to all or any peripheral nodes on the network, sometimes including the originating node. All peripheral nodes may thus communicate with all others by transmitting to, and receiving from, the central node only.
Star network is employed to transmit data across the central hub between the network nodes. When a packet involves the hub it transfers that packet to all or any nodes connected through a hub but just one node at a time successfully transmits it.
In local area networks where the star is employed , each machine is connected to a central hub. In contrast to the bus , the star allows each machine on the network to possess some extent to point connection to the central hub and there's no single point of failure. All of the traffic which transverses the network passes through the central hub. The hub acts as a sign booster or repeater which successively allows the signal to travel greater distances.
When it's important that your network have increased stability and speed, the star should be considered. once you use a hub, you get centralized administration and security control, low configuration costs and straightforward troubleshooting. When one node or workstation goes down, the remainder of your network will still be functional.
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