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NetWithAlex is my space on the web where I share my passion for networking and technology 馃殌. Here you’ll find interesting and useful resources explained in a simple way to help you learn clearly and practically.

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Cisco SD-WAN Policy Guide (2025): UX 2.0 Update

Updated SD-WAN policy guide: understand Policy Groups, Topology and Application Catalog in Catalyst SD-WAN UX 2.0.

December 4, 2025 路 5 min 路 Alex

TLOC Extension in Cisco SD-WAN: Design & Configuration

Learn how Cisco SD-WAN TLOC Extension works, its use cases, configuration steps, and best practices to improve resiliency and optimize WAN resources.

August 15, 2025 路 8 min 路 Alex

Reload vs Upgrade: Case Study

Through this case study we will explore an interesting behavior observed when we upgrade devices through the SD-WAN Manager that could cause potential traffic issues. We will also see how to mitigate this risk using BFD.

August 1, 2025 路 8 min 路 Alex

Simplifying Tunnel Management with Tunnel Groups in Cisco SD-WAN

Learn how Tunnel Groups in Cisco SD-WAN simplify tunnel management at scale. Discover how they work, how they differ from control policies, and when to use them with real-world examples.

July 15, 2025 路 9 min 路 Alex

Quick Guide: Control vs Data Policies in Cisco SD-WAN

Learn the key differences between Cisco SD-WAN control and data policies, when to use each, and how they impact routing and traffic forwarding

July 1, 2025 路 4 min 路 Alex

Getting Started with SD-WAN Automation

Learn the fundamentals of SD-WAN automation and how to get started with scripting and APIs to streamline your network operations.

June 16, 2025 路 6 min 路 Alex

AppQoe Series: Packet Duplication

Learn how Packet Duplication can help you reliably transmit critical traffic over unreliable transports to making sure your application.

June 3, 2025 路 6 min 路 Alex

AppQoe Series: Forward Error Correction (FEC)

Learn how Forward Error Correction (FEC) works in Cisco SD-WAN to improve application performance over lossy links. Explore use cases, configuration insights, and testing results.

May 19, 2025 路 7 min 路 Alex

Cisco SD-WAN On-Prem ZTP: Automating Router Onboarding

Plug and Play (PnP) lets you onboard SD-WAN devices automatically via Cisco Cloud. This post explains how to achieve zero-touch provisioning (ZTP) in an airgapped, on-premises environment.

May 5, 2025 路 7 min 路 Alex

AppQoe Series: TCP Optimization

Discover how SD-WAN enhances TCP performance. Learn about key optimization techniques that improve application reliability and user experience.

April 22, 2025 路 7 min 路 Alex