CCDE Study Guide by Marwan Al-shawi

By Marwan Al-shawi

The authoritative, business-driven learn source for the harsh CCDE functional Exam


CCDE learn advisor is written and reviewed by way of CCDE engineers and allows you to either increase your layout abilities and to check for and move the CCDE examination. community layout is an paintings, combining extensive know-how wisdom and event. This booklet covers a wide variety of applied sciences, protocols and layout techniques, and issues that could convey those features jointly and exhibit how they are often used and thought of in keeping with assorted requisites and enterprise pursuits. consequently, this booklet doesn't try to train foundational expertise wisdom, as an alternative every one part:


  • Highlights, discusses, and compares the constraints and merits of the several layout concepts by way of scalability, functionality, flexibility, availability, complexity, protection, etc to simplify the task and assist you comprehend what expertise, protocol, or layout techniques can be chosen and why, according to the enterprise or software standards or to mend a damaged layout that have to be optimized
  • Covers layout features of alternative protocols and applied sciences, and the way they map with varied requirements
  • Highlights drivers towards utilizing those applied sciences if it is meant for company or merchant community, reckoning on the subject and technology


Using a business-driven method, CCDE research consultant is helping you study enterprise and technical specifications and strengthen community designs which are in accordance with those enterprise wishes and ambitions, bearing in mind either the technical and non-technical layout constraints. a few of the “scenario-based” layout examples mentioned during this booklet may help you craft layout ways and necessities research on such subject matters as converged firm community architectures, merchant community architectures, and knowledge facilities. The e-book additionally addresses excessive availability, IPv6, multicast, QoS, safeguard, and community administration layout issues, offering you with an in-depth overview of a huge diversity of applied sciences and environments.


Whether you're getting ready for the CCDE examination or just desire to achieve higher perception into the artwork of community layout in various environments, this ebook is helping you easy methods to imagine like knowledgeable community fashion designer in addition to research and evaluate
the diverse layout concepts, rules, and protocols in keeping with various layout requirements.


  • Master a business-driven method of designing firm, merchant, and information heart networks
  • Analyze the layout effect of industrial, practical, and alertness requirements
  • Learn from scenario-based examples, together with converged firm networks, merchant networks, and cloud-based information centers
  • Overcome layout barriers and fasten damaged designs
  • Review layout ideas and issues relating to Layer 2 and Layer three keep an eye on aircraft protocols
  • Build designs that accommodate new companies and applications
  • Consider layout suggestions for contemporary campus networks, together with community virtualization
  • Design WAN area and net area blocks in company networks
  • Review the architectural parts of a provider provider-grade network
  • Plan MPLS VPN community environments, together with L2VPN and L3VPN
  • Interconnect diverse networks or routing domains
  • Design conventional, virtualized, and cloud-based facts heart networks
  • Interconnect dispersed info middle networks to guard enterprise continuity
  • Achieve acceptable degrees of operational uptime and community resiliency
  • Integrate IPv6, multicast, QoS, defense, and community administration into your designs



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Staff expertise: Sometimes network designers might propose the best design with the latest technologies in the market, which can help reduce the business’s total cost of ownership (TCO) (for example, in the case of virtualization in the data center and the consolidation of data and Fibre Channel [FC] storage over one infrastructure Fibre Channel over Ethernet [FCoE]). This can be an issue, however, if the staff of this company has no expertise in these technologies used to operate and maintain the network.

It is obvious that this design model can enhance network resiliency and convergence time, and maximize bandwidth capacity, by utilizing all uplinks. In addition, this design model supports the extension of the Layer 2 VLAN across access switches safely, without any concern about forming any Layer 2 loop. This makes the design model simple, reliable, easy to manage, and more scalable as compared to the classical STP-based design model. Layer 2 Design Model: Daisy-Chained Access Switches Although this design model might be a viable option to overcome some limitations, network designers commonly use it as an interim solution.

Figure 1-6 Decision Tree Decision Matrix Decision matrixes serve the same purpose as decision trees; however, with the matrix, network designers can add more dimensions to the decision-making process. In Table 1-3, there are two dimensions a network designer can use to select the most suitable design option. In these two dimensions, both business requirements and priorities can be taken into account to reach the final decision, which is based on a multidimensional approach. Table 1-3 Decision Matrix When using the decision matrix as a tool in the preceding example, design option 2 is more suitable based on the business requirements and priorities.

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