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| Hybrid topology |
Advantages of hybrid topology
- The benefits of several different types of topologies can be combined into one.
- Comparatively expensive than other topologies.
Showing posts with label star. Show all posts
Showing posts with label star. Show all posts
Hybrid Topology
A hybrid topology, as the name suggests, is an interconnection of two or more networks. The component networks may be ring, star, tree, mesh or any other, depending upon the requirement of a firm or institution. For example, in an institution, if there is a ring topology in one department, bus topology in the next department, star topology in another department and so on, all the departments can connect to each other through a bus topology that connects the ring, bus and star topologies of each department to each other. Such a topology that consists of more than one type of individual topologies is known as hybrid topology.
Advantages of hybrid topology
Advantages of hybrid topology
Tree topology
A tree topology consists of bus and star topologies framed in a common network. The tree like structure of this network allows the colleges, schools, universities and other institutions to maintain their own network as a branch of a bigger network through which they can maximize their area of access to the network. This type of network topology is most suitable for such networks which are widely spread and divided into many branches.
On tree topology the hubs of each smaller topologies are connected to the central hub that controls the entire network. However, some nodes can be directly connected to the central hub.
Advantages of tree topology
Disadvantages of tree topology
On tree topology the hubs of each smaller topologies are connected to the central hub that controls the entire network. However, some nodes can be directly connected to the central hub.
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| Tree topology |
Advantages of tree topology
- It is possible to form a point to point connection with tree topology.
- All the computers can access other computers which are in other larger and immediate networks.
- Tree topology is best suited for branched out networks.
Disadvantages of tree topology
- In this topology, the length of the network depends on the type of cable utilized to form the network.
- The entire tree topology would fail if the central trunk fails as it forms the backbone of the network.
- The tree topology is comparatively more complex than the bus and star topologies. If it gets bigger, it would be difficult to configure and manage it.
- It is expensive as more hubs and cables are required to install the network.
Star Topology
A star topology consists of a central connection hub to which devices are connected with UTP (Unshielded Twisted Pair) Ethernet. Contrary to the bus topology, a star topology utilizes a point-to-point connection to connect each node to the central hub. The hub acts as a signal booster as well, and all the data traffic that transverses the network passes through this hub.
The entire network is dependent upon the central hub in a star topology, so if the entire network is not working, it means that there is problem in the hub. This makes it easy to troubleshoot the network because of the only one point for error correction. As all the computers in star topology are independent to each other and dependent only on the central hub, network failure or other network problems are less likely to happen. The privacy of each of the computers is also maintained in this topology.
In star topology, new devices and nodes can be easily added and by just extending a cable from the hub.
Advantages of star topology:
Disadvantages of star topology:
The entire network is dependent upon the central hub in a star topology, so if the entire network is not working, it means that there is problem in the hub. This makes it easy to troubleshoot the network because of the only one point for error correction. As all the computers in star topology are independent to each other and dependent only on the central hub, network failure or other network problems are less likely to happen. The privacy of each of the computers is also maintained in this topology.
In star topology, new devices and nodes can be easily added and by just extending a cable from the hub.
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Advantages of star topology:
- A star topology is simple in functionality and easy to manage.
- If a problem occurs in the network, it can be easily isolated and cleared.
- It is very easy to expand the star topology because of its simple format.
Disadvantages of star topology:
- The entire network of the star topology is completely dependent on the hub. If the hub fails, the whole network fails.
- Network connection may slow down when the number of nodes increases or the cable lengthens.
- Star topology needs more cable length than other topologies.
- It is more expensive compared to bus topology.
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Star Topology
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Network Topology
A network topology refers to the interconnection of various nodes of a computer network. In other words, it defines the layout of the various devices that are part of the computer network.Topology is the virtual "shape" of the network, but it may not actually represent the actual physical design of the network that the various devices are connected to each other.
There are two types of network topologies: physical and logical.
A physical topology refers to the physical design of the computer network that includes the computers and other devices, their location and the various cables installed in the network.
A logical topology means the mode of flow of data in the network in contrast to its physical arrangement.
There are mainly six types of network topologies listed as under:
There are two types of network topologies: physical and logical.
A physical topology refers to the physical design of the computer network that includes the computers and other devices, their location and the various cables installed in the network.
A logical topology means the mode of flow of data in the network in contrast to its physical arrangement.
There are mainly six types of network topologies listed as under:
- bus
- star
- ring
- tree
- mesh
- hybrid
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