VLAN Tagged vs Untagged – What is the difference?
Explore the important disparities between VLAN Tagged and Untagged approaches. Enhance your understanding of network segmentation and traffic management.
Category Routing and Switching
All Routing and switching related topics will come under this category.
What are VLANs and Private VLANs, and How do they work?
Understanding VLANs (Virtual Local Area Networks) and Private VLANs unlocks advanced network segmentation capabilities, enhancing security, manageability, and performance. In this article, we will discuss the nuts and bolts of VLANs and Private VLANs, their advantages, configuration steps, and how…
IP Subnetting Cheat Sheet (free PDF) for Network Engineers
IP Subnetting divides IP addresses and networks into smaller groups, determining the network and host bits. Learn more with the IP subnetting cheat sheet and CIDR cheat sheet.
HSRP vs VRRP vs GLBP – A Quick Guide
Deciding between HSRP vs. VRRP vs. GLBP is a common challenge for network engineers. The right choice often depends on your network equipment, design goals, and specific redundancy requirements. All three are First Hop Redundancy Protocols (FHRPs) that operate at…
What is VRRP, and How Do You Configure It on Cisco Devices?
A comprehensive guide to understanding and configuring Virtual Router Redundancy Protocol (VRRP) on modern Cisco devices. Learn about VRRPv3, key concepts like priority and preemption, object tracking, and best practices for IPv4 and IPv6 environments.
HSRP Config – The Definitive Guide with Video, Diagrams, Configs, and Quiz
HSRP is an FHRP (First Hop Redundancy Protocol) developed by Cisco to provide redundancy and high network availability almost anywhere in the network where we have two layer3 devices. HSRP config gives a group of routers a virtual IP address…
Router on the Stick Configuration – Enterprise and Service Provider Example
A deep dive into Router on the Stick configuration with practical, step-by-step examples for both Enterprise and Service Provider networks using modern Cisco commands.
How to Find Cisco Router Login Details
Struggling to find the login details for your Cisco router? This guide walks you through two simple, effective methods to find default credentials, navigate Cisco's website, and access any router model, from older classics to modern devices.
GLBP Details, Configs and Load Balancing Tests
GLBP stands for Gateway Load Balancing Protocol and it is a Cisco proprietary First Hop Redundancy Protocol that attempts to overcome the limitations of existing redundant router protocols by adding basic load balancing functionality. In addition, it allows one virtual router…
Bridging LAN Over WAN
⚠️ Legacy Technology Notice: This article covers legacy Cisco transparent bridging with IRB using deprecated bridge-group commands from classic IOS. These commands do not work on modern IOS-XE or IOS-XR platforms. This content is preserved for historical reference and exam…