Book Image

Network Architect's Handbook

By : Alim H. Ali
Book Image

Network Architect's Handbook

By: Alim H. Ali

Overview of this book

Becoming a network architect is challenging—it demands hands-on engineering skills, encompassing hardware installation, configuration, and fabric layout design. Equally crucial, it involves collaboration with internal teams and C-Suite stakeholders, and adeptly managing external entities like vendors and service providers. The Network Architect's Handbook comprehensively covers these vital aspects, guiding you to evolve into an effective network architect within an organization, fostering seamless communication with leadership teams and other stakeholders. Starting with a clear definition of a network architect’s role, this book lays out a roadmap and delves into the attributes and mindset for success. You’ll then explore network architect design, physical infrastructure routing and switching, and network services such as DNS, MLAG, and service insertion. As you progress, you’ll gain insights into the necessary skills and typical daily challenges faced by network architects. And to thoroughly prepare you to advance in your career, this handbook covers certifications and associated training for maintaining relevance in an organization, along with common interview questions for a network architect's position. Armed with essential concepts, techniques, and your newfound skills, you’ll be well-prepared to pursue a career as a network architect.
Table of Contents (19 chapters)
1
Part 1 – Navigating the Architectural Blueprint of Networking
5
Part 2 – Crafting the Architectural Mind: Attributes and Mindset of a Network Architect
8
Part 3 – Constructing the Core: Building Blocks of a Network Architect
13
Part 4 – Mastering the Craft: Advancing Your Journey as a Network Architect

Understanding the role of SDN

SDN emerged as a transformative way of networking and networking infrastructure in the early 2010s. This paradigm-shifting approach to networking has revolutionized how IT networks are designed, managed, and operated. Up to this point in time (in some respects, it’s continuing), traditional network architectures were rigid and complex, with control functions tightly integrated into network devices such as routers and switches. SDN, on the other hand, decouples the network’s control plane from the data plane, centralizing the control in a software-based controller. This decoupling allows network professionals to dynamically manage and configure the network, making it more agile, flexible, and responsive to changing business needs and requirements.

To gain a better understanding of SDN, let’s take a look at Figure 8.5:

Figure 8.5 – The SDN plane

Figure 8.5 – The SDN plane

As we can see, several planes make up the overall...