Articles

NoBlameNetwork Aug 28, 2025 106 views

CCNA 200-301 Switch Concepts

CCNA 200-301 guide to Layer 2 vs Layer 3 switches — MAC tables, VLANs, collision domains, and managed vs unmanaged switches (Topic 1.1.b).

NoBlameNetwork Aug 28, 2025 83 views

A CCNA 200-301 explainer covering how routers work, why they are used, and the key functions they perform in a network (Exam Topic 1.1.a).

NoBlameNetwork Aug 28, 2025 136 views

For L2VPN VXLAN on IOS-XE with BGP EVPN & OSPF Underlay

NoBlameNetwork Aug 22, 2025 95 views

A high-level overview of fiber optic cable types used in data centers, including single-mode, multimode, LC, and MPO connectors.

NoBlameNetwork Aug 19, 2025 103 views

How your browser securely connects to a website in a few simple steps.

NoBlameNetwork Aug 6, 2025 80 views

Spanning Tree Protocol (STP) prevents network loops in switched environments. This guide explains why STP exists and how it works at a high level.