physical topology definition: A logical topology is how devices appear connected to the user. Example: Path from A to G is given by (A,D),(D,E),(E,G) Cycle at A is given by (A,C), (C,B), (B,A) Example is a connected Graph A B D E F Example is a connected Graph Telcom 2110 7 C G Graph Types Complete Graph: every node is connected to every other node – also called a Full Mesh N node network – every node has degree (N-1) • Mesh Graph Telcom 2110 8. org dictionary, synonyms and antonyms. Bus logical topology is the most common logical solution for the bus, star, or star-wired bus physical topologies. In [Ramaswami and Sivara­. Both logical and physical topologies could be same or different in a same network. For example, a network topology defined purely in terms of its physical connections would have to be re-wired to reflect changes in state (for example, closing a switch). Example powerpoint business plan presentation. Pseudonodes of the latter sort become a vertex after editing. Star Network Topology. Duals are used to provide various usefulrepresentation. Because a given cable in a base-band network services only one station at a time, it is necessary to have procedures in place that manage network access so that all stations have access without conflicting with each other. A physical topology is how they are actually interconnected with wires and cables. In many instances, the logical topology is the same as the physical topology. In ring topology, devices are attached to one another in a ring shape to have each device connected to another on each of its two sides. This has been an issue with Cisco IOS for years and it has yet to be fixed. 2012 Two seemingly identical lines-each defined by a unique parametric equation-are different, because the location of an object in space is part of a shape's mathematical DNA: the x and y values define the location of points in a two-dimensional Cartesian coordinate system. For example, a data model is always attached to logical schema, and data flows are defined with this model. The types of logical topologies are the same as the physical topologies except that the information flow specifies the type of logical topology in use. Edit this example. Tree Topology. The logical topology defines how the systems communicate across the physical topologies. A logical topology describes how network devices appear to be connected to each other. Network topology is a powerful tool to provide administrators a graphic overview of the logical network topology and the status of any devices. Proofs are composed of statements. In LAN all the terminals are linked together. Example topologies are based on traditional approaches to building SharePoint architectures with web servers, application servers, and database servers. Here, we set aside route selection and employ simple, hash-based multi-path route selection for all tasks. A 1 dimensional cell complex X=X1 is what is called a graph in algebraic topology. A sample network topology drawn by the Auvik network management system. The default value is used if the topology creates a new connection between two features. Logical topology deals with how data is transferred and flows on the network, while physical topology is concerned with the physical layout of the devices on the network and how they are physically connected. Devices, cable installation and location are included in a physical topology's schematics. Network topology is the map that defines how network devices connect each other. Proofs are composed of statements. For example, if you want to make a star topology you can use the same circles but connect the nodes with a central node. Network Topology I am planning to set up two segments on my network. The physical topology is the way you physically lay out the network, like a map, and the logical topology is the way the information flows on the network. Both logical and physical topologies could be same or different in a same network. For example, in a logical diagram of your office network, you may show a connection between city A and city B. For example, the modified topology of your cloud application may specify just two nodes (see Figure 7, left side): the “CustomerDB” node and the “MyDBMS” node. If you experience this issue, a router. An example comparing Physical and Logical Topologies is provided in Figure 1. Introduction Network Topology is the study of the arrangement or mapping of the elements (links, nodes, etc. Now you have a basic idea on spouts and bolts. An important research area is to determine the optimum logical topology for a given optical network with the specified physical topology and expected traffic demand for each node pair. In this video, Anthony Sequeira discusses the key differences in physical versus logical topologies, and examines specific physical topologies that you should know. An Ethernet network connected using a switch has a logical star topology. Kevin Wallace, CCIEx2 (R/S and Collaboration) #7945. While IBM's Token Ring is a logical ring topology, it is physically set up in a star topology. This includes the arrangement and location of network nodes and the way in which they are connected. Logical topology refers to the pattern of how data is transferred over the network. Real Life Examples of Wireless Infrastructure • Real life wireless networks are very often combinations of more than one topology • Graphical representations are totally arbitrary and different from one another. Likewise, it is possible for a link at one level of a hierarchy to aggregate a bundle of links at another level of the hierarchy. A logical schema is an alias that allows a unique name to be given to all the physical schemas containing the same datastore structures. Intermapper is network topology mapping and monitoring software for Windows, Linux, and Mac that provides a unique, sophisticated live view of network configuration and performance. A network's logical topology is not necessarily the same as its physical topology. The classic example is a major research university with multiple buildings distributed over several square miles. In reality, however, only a few combinations of physical and logical topologies work well together. Petersen, Oracle Linux Engineering Introduction The industry migration towards harddrives with 4KB physical blocks has caused us to make some changes to the Linux block I/O stack. A topology is basically a way to organize the network. We do not ask: how big is it? but rather: does it have any holes in it? is it all connected together, or can it be separated into parts? A commonly cited example is the London Underground map. Logical Network Diagrams Explained. The logical topology describes how data moves from node to node. In the data grid, for each flow option, enter a value for the flow direction. Auvik’s automated network topology mapping software shows you what’s on your network map and where — and maintains that logical network diagram view in real-time. 2012-03-26 13:18 robe * /trunk/doc/extras_topology. Logical topology refers to how data is passed through the network. In terms of cost, we observe that routing a wavelength demand from 1 -. Network topologies may be physical or logical. Sometimes I will break out physical, Layer 2, and Layer 3. A good example of a multipoint connection is communication between a group of computers in a network. Network topology is a powerful tool to provide administrators a graphic overview of the logical network topology and the status of any devices. Logical Topology: The logical topology of a network determines how the hosts communicate across the medium. For example, we show that when K 4 the physical topology must have at least 4N=3 links, and that when K 6 the physical topology must have at least 3N=2 links, and. However, data flow determines the logical topology of the network. It shows that every node actually connects to a central hub on the network. However, its physical topology reveals a star-shaped connection. While IBM's Token Ring is a logical ring topology, it is physically set up in a star topology. Cosmic Topology is the name given to the study of the overall shape of the universe, which involves both global topological features and more local geometrical properties such as curvature. A physical topology is how they are actually interconnected with wires and cables. Simplest topology The simplest server topology uses the fewest number of physical servers to host the components that compose the logical tiers of Team Foundation. Logical Application Topology ¶ To maintain a consistent reference throughout the book, an Application Profile (AP) was built for a common 3-tier application that was used for every troubleshooting sample. Here is a description of the different types of network topologies and their use. Whether space is finite or infinite, simply-connected or multi-connected like a torus, smaller or greater than the portion of the universe that we can. Pseudonodes of the latter sort become a vertex after editing. • Here, some logical layout of topology. A logical topology defines how devices communicate with each other across the physical topology. What is the Topology? Through the Topology Manager module, the user has at his disposal a genuine physical and logical cartography of the architecture and the components he works on through Oracle Data Integrator. Restorable Logical Topology using Cross-Layer Optimization Abstract: Today’s communication networks consist of routers and optical switches in a logical topology overlaid on an optical physical infrastructure. Section 2 describes the structure and initialization scheme of BMG. In geometry and analysis, we have the notion of a metric space, with distances speci ed between points. It is most-suited in networking multiple departments of a university or corporation,. UTC People often try to cram too much information onto a network topology drawing, which results in cluttered diagrams that are difficult to follow. an important discussion simply entitled “Chemical Topology” [1]. The structure of this paper is as follows. It is also a way to model the integrated behavior of different feature types (shared geometry). We do not ask: how big is it? but rather: does it have any holes in it? is it all connected together, or can it be separated into parts? A commonly cited example is the London Underground map. Logical components in Active Directory allow you to organize resources so that their layout in the directory reflects the logical structure of your company. The logical topology is a ring with nodes ordered 1-3-4-5-2-1. Physical topology should not be confused with logical topology which is the method used to pass information between workstations. As shown in the figure, an integral part of the logical topology is the addressing. In this topology, all computers listen to the network and can only send data when none. Some examples of physical topology? bus; star. Example of Network Radar on simple logical topology. Since protected logical topologies are often designed to withstand only a single link failure, it is possible that a single physical link failure could leave the logical topology disconnected. Although geographical sites can appear on the map, the purpose of the map is to show the geometry of the network,. “A dual quad-core host (2 * 4 = 8 cores) with 64GB RAM on the host would mean NUMA boundary is 64/8 or 8GB. For exam-ple, letters in a document can be classi ed in a rst step according to their topological homotopy types. Logical topology is the method used to pass the information between the computers. Learn about Logical Port mapping when using an External Test Set. Once twisted pair and fiber were introduced into the Ethernet Physical layer, hubs were designed to. In LAN all the terminals are linked together. relation and basic logical connectives “and” (&, ^, conjunction), “or” (_, disjunction) between propositions. For example, twisted pair Ethernet is a logical bus topology in a physical star topology layout. Logical - The logical network topology is a higher-level idea of how the network is set up, including which nodes connect to each other and in which ways, as well as how data is transmitted through the network. After examining this example, it is clear that the logical topology model is a complex graph model, containing ordered object associations based on the geometric embedding of the objects in two-dimensional space. • Here, some logical layout of topology. For this, we create an abstracted graph, which is called the Virtual Neighbor Graph (VNG). The ring topology is relatively easy to troubleshoot because a computer stops receiving data from its upstream neighbour. gif Logical topology example 03. A topology is a map of an internetwork that indicates network segments, interconnection points, and user communities. Active Directory logical and physical topology If it's a single forest-single domain environment, it is not hard to keep all the FSMO roles in one domain controller. Network topology — known as the pattern in which the network medium is linked to the computers and other networking components. As logical topology inherently defines the type of routing paths, indicates whether to use broadcast or unicast, and determines the sizes and types of packets and other overheads, choosing the right topology helps to reduce the amount of communication needed for a particular problem. The following illustration shows the simplest topology: In this example, all server components are deployed on a single physical server. Network topology can be either logical or physical. A network's logical topology is not necessarily the same as its physical topology. Design of Logical Topologies for Wavelength-Routed Optical Networks Rajiv Ramaswami, Senior Member, IEEE, and Kumar N. gif Bus topology Bus topology Fully connected topology Line topology Mesh topology Mesh topology. Linux Encryption HOWTO by Marc Mutz, v0. The right example for this can be road traffic rules. 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. Application letter for teacher 1. In reality, however, only a few combinations of physical and logical topologies work well together. While IBM's Token Ring is a logical ring topology, it is physically set up in a star topology. The stations are connected in a complex, redundant pattern. The linear topology. In Partial-mesh Site-to-Site Wide Area Network (WAN) topology important physical sites are connected together using Wide Area Network (WAN) links. Another reviewer has said it: "You will not regret buying this book". EVPN Multihoming Active-Standby. For network diagrams, see Network Topology Diagrams in the Quick Reference section of Webopedia. while IBM's token ring is a logical ring topology, it is physically set up in star topology. If you experience this issue, a router. This helps to reduces chances of collision. On that note, we'll wrap up this quick look at the leaf-and-spine topology. to generate an echo reply in response to a ping test E. Logical components in Active Directory allow you to organize resources so that their layout in the directory reflects the logical structure of your company. This book is worth its weight in gold just for all the examples both throughout the text and in the exercises. A network topology is the pattern in which nodes (i. under the floor, through walls, on the ceiling, etc. This post is a continuation of "Campus High Level Design - Sample Physical Topology, Part 1". Logical architecture is a structural design that gives as much detail as possible without constraining the architecture to a particular technology or environment. Mathematics 490 - Introduction to Topology Winter 2007 What is this? This is a collection of topology notes compiled by Math 490 topology students at the University of Michigan in the Winter 2007 semester. on edge primitives for example, and instantiated via queries for other features. NET platform. A logical topology describes how network devices appear to be connected to each other. In this topology, all computers listen to the network and can only send data when none. gif Bus topology Bus topology Fully connected topology Line topology Mesh topology Mesh topology. For example, the authors in [Mukherjee et al. Design Topology Lab, Joseph Choma. Using network equipment such as routers and switches, the logical topology of a network can be dynamically maintained and reconfigured. This document is a physical topology that describes the physical location of every network component. A physical topology describes the way in which the devices are connected together. A moderate topology uses two or more servers to host the logical components of the data and application tiers of Azure DevOps. Will mobile devices replace desktop system units and traditional laptop computers? How would networks have to change if that were to happen? Are you looking for a similar paper or any other quality academic essay? Then look no further. EXAMPLE : twisted pair Ethernet is a logical bus topology in a physical star topology layout. A network's logical topology is not necessarily the same as its physical topology. Connection between the objects might be a logical, physical, or network connection. A physical topology describes the placement of network nodes and the physical connections between them. It con-tains a very clear account of most of the ideas that constitute the background of chemical topology. The biggest single problem I'm seeing when working on enterprise networks is the lack of L3 logical network diagrams. The simplest server topology uses the fewest number of physical servers to host the components that compose the logical tiers of Team Foundation. A network topology is a sub type of a logical topology that is based on an arc-node model and is based on geometry. The logical topology, on the other hand, refers more to how the data moves through the network. Topology Network Datamodel. In this topology, the BIG-IP appliances are used but BIG-IP VE could also be used the same way. For example, the idea of topological isomers (also named. In CISSP terms, you may hear logical topology referred to as the LAN media access method or network access method. The Logical topology defines how the systems communicate across the physical topologies. Utility models are based on logical topologies that connect points and lines. , twisted pair copper wire cable or optical fiber cable). Application letter for teacher 1. 1) This type of network topology is very organized. A logical topology is the way a network transfers frames from one node to the next. NET GIS solution that is fast and reliable for the. A lightpath is an all optical path, which is established by allocating a wavelength between the source and the destination of a logical link in the physical topology. Examples of Tautology By YourDictionary A tautology is an expression or phrase that says the same thing twice, just in a different way. • The problems can be easily located logically in a Star Topology and therefore is easy to troubleshoot also. The logical topology defines how nodes in a network communicate across its physical topology. While IBM's Token Ring is a logical ring topology, it is physically set up in a star topology. Topologies may define both physical and logical aspect of the network. but can you guys give examples of path connected topology rather than discrete The logical order. With this type of connection, the logical topology looks as if each node is connected into the same bus. Using network equipment such as routers and switches, the logical topology of a network can be dynamically maintained and reconfigured. Definition - What does Logical Topology mean? A logical topology is a concept in networking that defines the architecture of the communication mechanism for all nodes in a network. Network topologies may be physical or logical in design. 2 Logical Link Control (LLC) sub-layer. Wikipedia] This Cisco logical computer network diagram example was created using the ConceptDraw PRO diagramming and vector drawing. If a cable to one of the workstations fails, the rest of the devices are unaffected unless they. Users relate to data logically by data element name; however, the actual fields of data are physically located in sectors on a disk. com with free online thesaurus, related words, and antonyms. A network's logical topology is not necessarily the same as its physical topology. Utility models are based on logical topologies that connect points and lines. What is the purpose of the preamble in an Ethernet frame? > is used for timing synchronization with alternating patterns of ones and zeros. It is the approach that the data traverses the network from one apparatus to the next with no regard to the physical interconnection of the devices. The edge-routed bridging overlay shown in Figure 3 includes two transit spine devices, an IP fabric, which includes three leaf devices that function as both Layer 2 and Layer 3 gateways, two physical servers, and one virtualized server on which VMs and a hypervisor are installed. Both logical and physical topologies could be same or different in a same network. For example, the original twisted pair Ethernet using repeater hubs was a logical bus topology carried on a physical star topology. Network topology defines the structure of the network. While IBM's Token Ring is a logical ring topology, it is physically set up in a star topology. A topology is basically a way to organize the network. Customize separation guidelines for the specific deal We have seen that business-oriented operational or technology owners typically drive guidelines definition, with inputs from control functions, the deal team, and technology staff. The logical being the one that shows how the data flows and the physical showing the devices and connections of the network. Moderate topology. Also in ring topology all the traffic flows in only one direction at very high speed. Think of a topology as a network's virtual shape or structure. For example, twisted pair Ethernet is a logical bus topology in a physical star topology layout. Net working: it is number of system connected together physical and logical, what are phasical and logical compenents ? What is the difference between physical and logical topology? When configuring a router utilizing both physical and logical interfaces, what factor must be considered in determining the OSPF router ID?. com with free online thesaurus, related words, and antonyms. A network's logical topology is not necessarily the same as its physical topology. For example, the computers on a home network may be arranged in a circle in a family room, but it would be highly unlikely to find a ring topology there. PDF | The field of neural networks has evolved sufficient richness within the last several years to warrant creation of a " logical topology " of neural networks; a conceptual layout of the. It describes how devices exchange data with network users. It will contain logical paths, and not necessarily the physical path. This logics can be defined, as data from one device travels to all devices in this network. To see the Logical Topology, in the root FortiGate GUI, select Security Fabric > Logical Topology. The ESXi CPU scheduler can detect the processor topology and the relationships between processor cores and the logical processors on them. Star Network Topology. In a logical diagram, you’ll generally visualize the following elements in your logical network topology: subnets (such as: IP addresses, VLAN IDs, and subnet masks,). Topology originated from the study of geometry and set theory and has many branches today. EXAMPLE : twisted pair Ethernet is a logical bus topology in a physical star topology layout. However, data flow determines the logical topology of the network. Physical arrangement of systems and their connection with the cables is called physical topology. Figure 2-4 is an example of a star (hub-and-spoke) topology. For this, we create an abstracted graph, which is called the Virtual Neighbor Graph (VNG). In this topology, the BIG-IP appliances are used but BIG-IP VE could also be used the same way. The physical and logical topologies are independent of each other. MESH TOPOLOGY. The actual architecture for a production network would be dictated by a number of factors. By specifying a context at run-time, the model's logical schema resolves to a single physical schema, and the data contained in this schema in the data server can be accessed by the integration processes. Bus Topology. This chapter provides information on how to design your messaging topology. Types of Network Topology. The example depicted in the first part was a simple, 2 Tier, Layer 2 Leaf & Spine topology. A workstation communicating along a parallel cable to a printer. Logical Topology: The logical topology of a network determines how the hosts communicate across the medium. Other logical topologies,. A network topology may be physical, mapping hardware configuration, or logical. Logical Topology for IP over WDM Networks with Stable Routing 63 therein. the logical topology (at the IP layer) into a lightpath between the nodes u and v in the physical topology (at the optical layer) such that failure of a physical link does not cause the logical topology to become disconnected. for example, switched Ethernet can still be regarded as a LOGICAL BUS network, if not a physical one. Read "A scalable logical topology for optical networks, Journal of High Speed Networks" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. For example, in a shared Ethernet network that uses hubs rather than switches, the logical topology appears as if every node is connected to a common bus that runs from node to node. This includes the arrangement and location of network nodes and the way in which they are connected. Logical schemas are mapped to physical schemas belonging to data servers (all in the Topology). Think logically about “logical separation” 1. For example, twisted pair Ethernet is a logical bus topology in a physical star topology layout. Curriculum vitae in spanish example. Token ring. The key to understanding how a bus topology works is to think of the entire network as a single cable, with each node “tapping” into the cable so it can listen in on the packets being sent over that cable. What does logical topology mean? Proper usage and audio pronunciation of the word logical topology. Auvik’s automated network topology mapping software shows you what’s on your network map and where — and maintains that logical network diagram view in real-time. Previous urban traffic network-based studies have been based mostly on single-layer networks. 6 (Trivial topology). , twisted pair copper wire cable or optical fiber cable). The logical topology represents the way data flows through the network. In your example, London, New York, and Development are contexts representing different geographical sites. under the floor, through walls, on the ceiling, etc. Physical Topology means the physical design of a network including the devices, location. If a topology does not conform to one of those templates, information about volume lag and last successful data transfer is displayed in a relationship table under the topology. Solved examples with detailed answer description, explanation are given and it would be easy to understand. These are examples of physical topologies, and they have been historically linked to the type of cabling we use to build the physical topology. Think of the star topology as a big wheel. Here are some examples among adjacent features:. The logical topology is the mode that the signals proceed on the network media. Think of a topology as a network's virtual shape or structure. Proofs are composed of statements. MESH TOPOLOGY. A site is a logical grouping of subnets. Network topology 2. For example, in a shared Ethernet network that uses hubs rather than switches, the logical topology appears as if every node is connected to a common bus that runs from node to node. The types of logical topologies are the same as the physical topologies except that the information flow specifies the type of logical topology in use. One part of the topology definition is the physical topology, which is the actual layout of the wire or media. A logical topology is how devices appear connected to the user. The attachment points (also known as USB ports) for peripheral devices are provided by a special class of USB device known as a hub. Network Infrastructure for EtherNet/IP™ Industrial Ethernet… Not Just Another Fieldbus 1-3. EVPN Multihoming Active-Standby. There are two main types of network diagrams: physical and logical. In general, physical topology relates to a core network whereas logical topology relates to basic network. 2012 Two seemingly identical lines-each defined by a unique parametric equation-are different, because the location of an object in space is part of a shape's mathematical DNA: the x and y values define the location of points in a two-dimensional Cartesian coordinate system. Real Life Examples of Wireless Infrastructure • Real life wireless networks are very often combinations of more than one topology • Graphical representations are totally arbitrary and different from one another. If a topology does not conform to one of those templates, information about volume lag and last successful data transfer is displayed in a relationship table under the topology. This configuration can be useful if one wants to schedule multiple physical clusters as a single logical cluster under the control of a single. For example, if there exists a ring topology in one office department while a bus topology in another department while a bus topology in another department, connecting these two will result in Hybrid topology. In combined networks , topology shows an integrated Cisco Meraki network that has MX Security Appliances, MS Switches, and MR Access points. Logical Architecture - is a diagram of how the “components” (physical and virtual) interact with one another. “A dual quad-core host (2 * 4 = 8 cores) with 64GB RAM on the host would mean NUMA boundary is 64/8 or 8GB. Echoing the physical vs. Logical topology deals with how data is transferred and flows on the network, while physical topology is concerned with the physical layout of the devices on the network and how they are physically connected. , computers, printers, routers or other devices) are connected to a local area network (LAN) or other network via links (e. For example, in a shared Ethernet network that uses hubs rather than switches, the logical topology appears as if every node is connected to a common bus that runs from node to node. A physical topology that is a variation. gif Bus topology Bus topology Fully connected topology Line topology Mesh topology Mesh topology. For example, in early days of Ethernet, networks were physically wired using a bus topology. Hopefully the content of this article, along with its earlier companion articles, enable a better understanding of how subnetting can be calculated. The logical topology, on the other hand, refers more to how the data moves through the network. A logical topology defines how devices communicate with each other across the physical topology. It is good to know about network topologies because different types of networking standards may use one type of p hysical topology, but use an entirely different logical topology. A logical schema is an alias that allows a unique name to be given to all the physical schemas containing the same datastore structures. Algebraic topology also lurks in the background. The logical topology describes how the devices communicate or the shape of the communication path. What are two examples of hybrid topologies? Logical topologies refer to how a network transfers data between devices. The logical topology design and interface assignment have an impact on the channel allocation on each logical link. LAN any given node has one or more links to one or more nodes of the network, and the geometry of links and nodes of a graph may be used to describe the results of the physical network topology map. Once twisted pair and fiber were introduced into the Ethernet Physical layer, hubs were designed to. The logical being the one that shows how the data flows and the physical showing the devices and connections of the network. In reality, however, only a few combinations of physical and logical topologies work well together. \logical topology" for neural networks is now in order. A logical topology is the way a network transfers frames from one node to the next. An example comparing Physical and Logical Topologies is provided in Figure 1. A topology is basically a way to organize the network. Logical Application Topology ¶ To maintain a consistent reference throughout the book, an Application Profile (AP) was built for a common 3-tier application that was used for every troubleshooting sample. Example of the USB topology from the host's point of view. In CISSP terms, you may hear logical topology referred to as the LAN media access method or network access method. Show controls for validating input data, for obtaining a record (record found status), for ensuring successful completion of a process, and for system security (example: journal records). Here, we set aside route selection and employ simple, hash-based multi-path route selection for all tasks. Networks based on virtual circuits (or tunnels) will have a physical topology based on the real connection medium (fiber, for example) and a logical topology based on the circuits/tunnels. Easily create a diagram using the logical network diagram template above by signing up for a free Lucidchart account and then styling the diagram with our different formatting options. So my second question is, is it possible to put a constraint not to create topology nodes in certain situations. The physical topology consists of the nodes. On the other hand, in all our examples, imposing it results in a minimal increase in congestion. I would like to ask which logical topology would be best to use and would meet the following criteria: 1. oMesh oStar oBus oRing oTree and Hybrid 3. Some refer to this as vertical integration of feature classes. Hosted virtual machine networks are configured in a manner such that a virtual machine manager component can establish service manifests that correspond to information required by the virtual machine network from a user/customer. Network bus topology. As a simple illustrative example, consider the logical and physical topologies shown in Figure 1. For example, twisted pair Ethernet is a logical bus topology in a physical star topology layout. For any positive integer, n2N, we have the ring Z=nZ. These changes leverage existing parameters in. Duals are used to provide various usefulrepresentation. If we zoom in at any point, it clearly still looks like a two-dimensional plane. All of the application topology configuration occurs within a Tenant. Types of Network Topology. But in the actual physical network, your data may go through switching points in several other cities as well. failed component, such as the backplane or power supply. A logical topology describes how network devices appear to be connected to each other. For example if in an office in one department ring topology is used and in another star topology is used, connecting these topologies. The logical topology, in contrast to the "physical", is the way that the signals act on the network media, or the way that the data passes through the network from one device to the next without regard to the physical interconnection of the devices.