Network design physical and logical design essay

A Ring topology would be: Logical Diagram article, but I will touch on it here as well. The physical design also will involve the topology that will be used in the network. Although logical and physical networks vary, they still work together to better define the same network. The last step in this phase is to analyze current and future network traffic, including traffic flow and load, protocol behavior, and quality of service QoS requirements.

Length of cable needed. There is no need in this diagram to add details about sub-interfaces, IP addresses, VLANs, etc other than the IP address and hostname in the device labels.

Next we will cover how to create and maintain a logical network diagram. Begin by listing out all connected subnets on the device also list out any VLAN information associated with these subnets.

I have included my standard logical diagram legend in the template linked at the top of the page. The use of diagrams is encouraged. With a star topology, expanding a network is easily done by adding another concentrator. Because top-down methodology is iterative, some topics are covered more than once in this book.

To meet these needs, difficult network design choices and tradeoffs must be made when designing the logical network before any physical devices or media are selected.

Not meant to be used as a stand-alone solution in a large building. The picture here diagrams a 2-switch stack with a 2-link port-channel between itself and an access switch. The physical design of the network is derived from the logical design and the physical design will often expand on the elements found in the logical design.

A logical network design refers to the logical addressing used to describe the network or the networks it connects to. It is also used by you to set the ground rules to be followed when creating the diagram; meaning: There is no need in this diagram for different colored connectors, so always use a solid black pattern.

The obvious exceptions to this rule are things like devices managed by somebody else where the hostname or management IP are unknown. There are three important pieces of information to hold in a subnet object: The Logical Design is the IP structure of your network depending on the services that will be provided to clients, you might need to analyze the possible traffic patterns that might result from your plan.

Network Documentation Series: Physical Diagram

Each lab will have 25 computers: Define the topology that will be used. I am also including the most common icons in the template linked at the top of the page. As you create each subnet, connect it back to the device with connectors and the appropriate connector labels.

Finally, the open-WiFi network should be on a separate network, but can use a private IP address range i.

Difference between Logical & Physical Design of a Network

If users need to exchange email with vendors, outside consultants, or customers, for example, then you should be sure to send this traffic through a content filter or firewall, and use virus-protection software to detect and prevent malicious code or virus-infected attachment Applications such as FTP allow users to send or receive files from remote systems.

Connectors Connectors are a critical part of a physical diagram. The basic idea behind the physical design is to communicate what hardware should be used in the network. All devices are connected to a central cable, called the bus or backbone.

Jul 01,  · Physical design vs. logical design (part I) Andrea Baruzzo / July 1, The first time I met the concept of physical design was almost one decade ago, reading the book “ Large-Scale C++ Software Design “, by John Lakos.

PFCH Network Design Plan - Essay Example. because the physical layout of devices and cables does not necessarily explain how signals travel from one device to another, network topologies are classified as physical and logical.

We will be improving our. Logical and Physical Network Design Network design is a detailed, labor-intensive activity. During the design process, all key aspects of the network are examined in terms of how they meet current needs and how they must be adapted or enlarged as network.

The courses are developed on validated reference architectures and will help information technology (IT) and operations technology (OT) engineers drive design decisions from the equipment-level to the enterprise wide network with scenario-based training on logical topologies, protocols, switching and routing infrastructure, physical cabling and.

B. Logical Topology Design with No Wavelength Changers A physical topology is a bidirected graph representing the physical interconnection of the wavelength routing nodes.

Oct 16,  · Since the documentation you have been given is incomplete I would also recommend that you create both physical and logical network diagrams to help you understand your new environment. The physical to help you identify ports, IPs, etc, and the logical will help you understand how the network should act.

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Logical and Physical Network Design - Essay