Author Topic: What are the important topologies for networks?  (Read 1122 times)

santhoshidatasoft

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What are the important topologies for networks?
« on: April 22, 2014, 09:10:34 AM »
What are the important topologies for networks?

BUS topology: In this each computer is directly connected to primary network cable in a single line.
Advantages: Inexpensive, easy to install, simple to understand, easy to extend.
STAR topology: In this all computers are connected using a central hub.
Advantages: Can be inexpensive, easy to install and reconfigure and easy to trouble shoot physical problems.
RING topology: In this all computers are connected in loop. Advantages: All computers have equal access to network media, installation can be simple, and signal does not degrade as much as in other topologies because each computer regenerates it.

swetha

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Re: What are the important topologies for networks?
« Reply #1 on: April 23, 2014, 01:25:57 AM »
hii,

Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network.[1][2] Essentially, it is the topological[3] structure of a network, and may be depicted physically or logically. Physical topology refers to the placement of the network's various components, including device location and cable installation, while logical topology shows how data flows within a network, regardless of its physical design. Distances between nodes, physical interconnections, transmission rates, and/or signal types may differ between two networks, yet their topologies may be identical.

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hruthika

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Re: What are the important topologies for networks?
« Reply #2 on: April 23, 2014, 04:54:45 AM »
Hello,

Bus Topology
    In Bus topology, all nodes (or devices) are connected to a common communication medium. Usually, a central cable is used as communication medium. This cable is called Bus. The computers or nodes are connected to the Bus through interface connector. The ends of bus (central cable) are closed with terminators. These terminators are used to absorb signals.

Star Topology
    In a star network, all computers or nodes are directly connected to a central device. The central device is called Hub. Typically, the nodes are connected to the Hub with unshielded twisted pair (UTP). Star topology is most commonly used in LAN. This form of network shape looks like a Star.

Ring Topology
In ring topology, each computer is connected to the next computer and the last computer is connected to the first. Thus, a ring of computers is formed.

Tree Topology
    Tree topology has combined features of bus and star topology. Typically to form a tree network, multiple star topologies are combined together through central cable or bus. The tree network looks like a tree structure.

Mesh Topology
    In mesh topology, each node is directly connected to every other node on the network. This type of network involves the concept of routes. Mesh topology is rarely used in LAN. Some WANs like the Internet use mesh topology.

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Hruthika.

jaswin.datasoft

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Re: What are the important topologies for networks?
« Reply #3 on: April 28, 2014, 09:26:13 AM »
mesh topology: occurs when every node has a circuit connecting it to every other node in a network. Full mesh is very expensive to implement but yields the greatest amount of redundancy, so in the event that one of those nodes fails, network traffic can be directed to any of the other nodes. Full mesh is usually reserved for backbone networks.


2. Star Topology

n a star network devices are connected to a central computer, called a hub. Nodes communicate across the network by passing data through the hub.

3. Bus Topology

Bus Topology: In networking a bus is the central cable -- the main wire -- that connects all devices on a local-area network (LAN). It is also called the backbone. This is often used to describe the main network connections composing the Internet.  Bus networks are relatively inexpensive and easy to install for small networks. Ethernet systems use a bus topology.

Pavithra M

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Re: What are the important topologies for networks?
« Reply #4 on: May 15, 2015, 03:56:25 AM »

BUS topology: In this each computer is directly connected to primary network cable in a single line.
Advantages: Inexpensive, easy to install, simple to understand, easy to extend.
STAR topology: In this all computers are connected using a central hub.
Advantages: Can be inexpensive, easy to install and reconfigure and easy to trouble shoot physical problems.
RING topology: In this all computers are connected in loop. Advantages: All computers have equal access to network media, installation can be simple, and signal does not degrade as much as in other topologies because each computer regenerates it.