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
Which one to use while deciding between HSRP vs VRRP vs GLBP? This is really a matter of the type of equipment at your disposal, network design complexity, or sometimes personal preference. I have already written articles explaining HSRP, VRRP,…
How to configure VRRP on Cisco Devices – With Video and Quiz
VRRP is an open standard FHRP defined in RFC-3768. It can be configured on Cisco devices to quickly detect and respond to router failures, providing fault tolerance at the network layer. Watch the video and take the quiz for a brief overview of VRRP.
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
The router on the stick configuration is a powerful and easy way to design your network. This method makes it very easy to add additional equipment to your network without the need to run a direct cable from your user…
2 Simple Ways To Find Cisco Router Login Details Without Looking Like An Amateur
How to Find Cisco Router Login Details Cisco routers come with their own set of login instructions. However, it can be a pain to find what that information is. There are some basic things that you should know to log…
GLBP Details, Configs and Load Balancing Tests
What is GLBP and Why do we use it? 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…
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…