In which topology failure of one node or link does not affect the rest of the network?

What is Topology?

Network topologies describe the methods in which all the elements of a network are mapped. The topology term refers to both the physical and logical layout of a network.

In this network topology tutorial, we will explain:

• What is Topology?
• Type of Network Topology
• Point to Point
• Bus Topology
• Ring Topology
• Star Topology
• Mesh Topology
• Tree Topology
• Hybrid Topology
• How to select a Network Topology?

Domain 4: Communication and Network Security (Designing and Protecting Network Security)

Eric Conrad, ... Joshua Feldman, in CISSP Study Guide (Third Edition), 2016

Star

Star topology has become the dominant physical topology for LANs. The star was first popularized by ARCNET, and later adopted by Ethernet. Each node is connected directly to a central device such as a hub or a switch, as shown in Figure 5.17.

Figure 5.17. Star Topology

Exam Warning

Remember that physical and logical topologies are related, but different. A logical ring can run via a physical ring, but there are exceptions. FDDI uses both a logical and physical ring, but Token Ring is a logical ring topology that runs on a physical star, for example. If you see the word “ring” on the exam, check the context to see if it is referring to physical ring, logical ring, or both.

Stars feature better fault tolerance: any single local cable cut or NIC failure affects one node only. Since each node is wired back to a central point, more cable is required as opposed to bus (where one cable run connects nodes to each other). This cost disadvantage is usually outweighed by the fault tolerance advantages.

View chapterPurchase book

Read full chapter

URL:https://www.sciencedirect.com/science/article/pii/B9780128024379000059

Types of Network Topology

Network Topology is the schematic description of a network arrangement, connecting various nodes(sender and receiver) through lines of connection.

All About Network Topology—Types and Diagrams

By Staff Contributor on September 24, 2021

Every network has a specific collection of nodes and links that connect them. The arrangement of those nodes and links, or the network topology, informs performance, maintenance costs, and more. You should know the network topology models in use today when designing or managing a network, including the ring, mesh, bus, star, and tree topologies. To effectively manage your network topology, it’s essential to stay on top of your network’s configurations, visually map your network, and monitor its performance.

What Is Network Topology?
Why Is Network Topology Important?
Types of Network Topology

Star Network Topology
Bus Network Topology
Mesh Network Topology
Ring Network Topology
Dual Ring Topology
Tree Network Topology
Hybrid Network Topology

Which Topology Is Best for Your Network?
What Tools Can Help Manage Network Topology?

SolarWinds Network Topology Mapper

Start Mapping Your Network Topology Today

While it’s possible to perform manual topology mapping, you get more for your time with an automated tool. I recommend SolarWinds® Network Topology Mapper (NTM), which offers automated device discovery and can generate detailed and easily digestible network topology maps, allowing you to view and understand your network more quickly and clearly.

Difference between Star topology and Bus topology

Prerequisite – Types of Network Topology

1. Star Topology :
Star topology is basically used for Local Area networks in which all nodes are connected to a central point called Hub, which connects them into the communication channel. The connections are in such a manner that n number of wires are required to connect n number of end devices or nodes. Traffic is generated from the central hub of the star. The central hub controls communication between all the nodes, message sent by one node reaches the hub first, and then it is transmitted to the receiver node through the hub.

2. Bus Topology :
Bus topology is a type of network topology in which all the devices are connected to a single cable which is called the backbone of the network. It consists of a terminator at each end of the cable. The network cable is responsible for the communication between the devices and when the data reaches the end of the cable it is removed by the terminator from the data line. It is the easiest network topology when the devices are to be connected in a linear fashion.

Types of Topology

There are five types of topology in computer networks: