Structured-Cabling,Data Cabling

Network Design Principles – Part 2

30 Sep 2018

Reliable & Manageable Scaling


Structured-Cabling,Data CablingScalability is a crucial characteristic that must be considered by network designers.


In addition, a network should also be reliable and manageable, which promote stability.  A network may be capable of expanding to several thousand routers. However, if there is a failure of some sort that causes instability due to greater processing and CPU usage required to compensate, the design won’t be successful.


A scalable network that is a challenge to manage or troubleshoot is also unacceptable.


Network problems that arise would take an excessive amount of time to address and repair, negatively impacting an organization’s business goals of the organization.


Thus, a scalable design must provide a manageable and reliable network.


Combining scalability, reliability, and manageability as the qualities of a network is a challenge. As a network expands, it becomes more complex, making management, maintenance, and repair more difficult.



Fault Isolation & Simplicity


Providing fault isolation boundaries creates fail-stop behavior for the wanted fault model. Fail-stop prevents faulty behavior from propagating past a fault isolation boundary. Effective network design must prevent a failure in one domain from spreading to other domains within a network. This is essential for the avoidance of unneeded processing and delays throughout the whole network because of a device or link failure. In addition, this will result in a converging network that has more stability, reliability, and speed.


The above concept also promotes simplicity as a network architecture characteristic, which decreases complexity in operations. Typically, fault isolation stops the propagation of network fault information across several domains or network areas. This will lead to greater network stability and the minimization of recovery time after failures.


The negative consequences due to a failure of a link or network node may spread to all devices across a network, resulting in a large volume of unneeded processing. A properly designed network using the Fault Domains Principle with its logical separation will limit the negative impact to within one fault domain.



Progressive Office Cabling


Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.

Data Cabling ,Cat5e ,Cat6/6a ,Cabling ,Structured Cabling

Creating the Requirements of Network Design

5 Jul 2018

Data Cabling ,Cat5e ,Cat6/6a ,Cabling ,Structured CablingVarious requirements that are skillfully combined during the implementation phase can result in a desired network design that helps attain a company’s business goals. Below is a classification of requirements for an organization. Some may be directly provided by the network design team while others may be determined from the goals or requirements of the company.



Business Goals



  • Decreasing operational costs

  • Expanding business via additional remote sites

  • Increasing staff productivity


Business Requirements



  • Decrease expenses for the maintenance of multiple voice & data networks

  • Provide support for expanding business via additional remote sites

  • Raise staff productivity by improving internal communications via mobile and video devices, while safeguarding company security


Functional Requirements



  • Ability to introduce and support new remote sites to the network without redesign

  • Infrastructure supporting data, video, voice, and wireless in a unified manner

  • Isolation of guest and employee wired and wireless traffic to comply with standard company security policy


Application Requirements


When an organization plans to add video and VoIP capability to their network, particular application requirements must be met. In such instances, the network design must be capable of providing sufficient network availability, efficiency, and performance for these two new features to support business goals.



Technical Requirements


In order to attain the above example’s functional and application requirements in consideration of the company’s business goals, the network design must have the following features:


High Availability – Raise the level of high availability in order to support traffic crucial to business, such as data and voice.


Quality of Service (QoS) – User experience can be greatly improved through the introduction of QoS in order to attain excellent voice and video services.


Scalability – Implement scalable network (WAN) design for supporting growth of business projected for the coming 12 months.


Security – Network security must be optimized when new features such as voice and Wi-Fi security are added.


Traffic Isolation – Provide traffic isolation to meet information security requirements.



Progressive Office Cabling


Founded in 1986, Progressive Office’s success has been a direct result of years of commitment to seeking solutions on behalf of our clients in the Washington, D.C. and New York City areas. Efficiently working together, Progressive teams get cabling installed and operating as fast as possible while minimizing disruption and downtime. Call our toll free number (800) 614-4560 today.