Demystifying Inter-VLAN Routing with Layer 3 Switch SVI Interfaces: A Comprehensive Guide

Objective: To understand how to work with inter-VLAN routing using Layer 3 switch SVI (Switched Virtual Interface) interface. Steps to Configure Inter-VLAN Routing: 1. Configure VLANs: Start by creating the VLANs you want to use for inter-VLAN routing. Assign unique VLAN IDs and assign the required interfaces to their respective VLANs. 2. Enable IP routing: … Read more

The Ultimate Guide to OSPF Commands: Configuring and Optimizing Cisco Routers

To configure and monitor OSPF (Open Shortest Path First) on a Cisco router, you can use various commands. These commands allow you to enable OSPF, modify OSPF settings for interfaces, view OSPF information, and more. Below is a list of commonly used OSPF commands along with their details: Command Details router ospf 123 Turns on … Read more

Understanding Administrative Distance in Cisco Routers: Importance and AD Values

Administrative Distance (AD) in Cisco Routers Definition The administrative distance (AD) is a numerical value assigned to different routing protocols in Cisco routers. It determines the preference or trustworthiness of routes when multiple routing protocols are present. Purpose The purpose of administrative distance is to select the best route among multiple available routes to reach … Read more

BGP Importance for ISP Engineers

BGP (Border Gateway Protocol) is a routing protocol used to exchange routing information between different autonomous systems (AS) in the internet. BGP is essential for ISP (Internet Service Provider) engineers as it allows them to connect their network to other networks, exchange routes, and provide reliable internet connectivity to their customers. Why BGP is important … Read more