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

Exploring NFV

Like SDN, NFV is another paradigm in the networking industry that aims to transform traditional network architectures by decoupling network functions from proprietary hardware appliances and running them as software-based virtualized instances on standard (commodity) servers. NFV represents a shift from hardware-centric networking to a more agile, flexible, and cost-effective approach that leverages the power of virtualization and cloud computing technologies.

Traditionally, network functions such as firewalls, routers, load balancers, and intrusion detection systems were implemented as dedicated hardware appliances. Each appliance performed a specific function, and scaling or updating the network required adding or replacing physical devices. This hardware-centric approach often led to inefficiencies, high capital expenses, and operational complexities.

NFV addresses these challenges by virtualizing network functions, allowing them to run on general-purpose servers...