Administrative Distance Explained: A Dallas Travel Story (CCNA by CCNAGuru)

๐Ÿค  The Dallas Adventure Administrative Distance (AD) CCNA by CCNAGuru ๐Ÿ“ Dallas ยท Ft. Worth ยท Online ๐ŸŽฅ a travel story that teaches networking ๐Ÿ“Œ CCNA certification Dallas โšก exam discount 2026 ๐ŸŒ† Picture this: You’re finally taking that dream trip to Dallas, Texas. You wanna experience the real deal โ€“ sizzling BBQ in Deep … Read more

Is CSMA/CD Still Used? Understanding Ethernet’s Collision Detection Legacy

Introduction: What is CSMA/CD? Carrier Sense Multiple Access with Collision Detection (CSMA/CD) is a network access method that was fundamental to early Ethernet networks. Its primary role was to orchestrate how devices shared a common communication medium (like a coaxial cable or a hub-based network segment) and to elegantly handle “collisions” โ€“ instances where multiple … Read more

Monitoring Traffic on a Cisco Router Interface

Monitoring traffic on a Cisco router interface is crucial for network administrators to ensure optimal performance, diagnose issues, and manage bandwidth effectively. This article provides an in-depth look at the commands used to check incoming and outgoing traffic on Cisco router interfaces. 1. Accessing the Router Before running any commands, you need to access the … Read more

Installing and Configuring Ntopng

Install Configure Overview of Ntopng Ntopng is a robust, web-based tool for monitoring network traffic. It’s open-source and available for various platforms including Linux, Windows, and macOS. Ntopng offers a graphical interface that displays detailed analytics, traffic breakdowns, and bandwidth utilization. It’s an essential tool for understanding network flow and identifying potential issues. Prerequisites A … Read more

Upload ASDM to ASA Firewall using tftp server

Upload ASDM to ASA Firewall Prepare TFTP Server: Set up a TFTP serverย  Tftpd64-4.64-setup.exe on a computer within the same network as the ASA firewall. Place the ASDM image file (e.g., asdm-openjre-7141-48.bin) in the directory configured for the TFTP server. Enable TFTP Server on ASA: Log in to the ASA firewall using SSH or console … Read more

Demystifying OSPF Routing: A Comprehensive Guide to Cisco IOS Commands

show running-config: This command displays the current configuration of the device, including all the configured settings. show ip protocols: This command displays information about the IP routing protocols enabled on the device, including OSPF. show ip ospf interface: This command shows detailed information about OSPF interfaces, including their state, cost, and other parameters. show ip … Read more

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

Spanning Tree Path Cost: Optimizing Ethernet Network Efficiency

Spanning Tree Path Cost Spanning Tree Protocol (STP) is a network protocol that ensures loop-free topologies in Ethernet networks. One of the key elements in STP is the concept of path cost, which determines the best path for data forwarding in the network. Path cost is assigned to each network link based on its speed. … 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

Promoting IT Certification and Networking Courses Jersey City, NJ

If you’re interested in advancing your career in IT, consider enrolling in one of our courses in Jersey City, NJ. Our courses are designed to help IT professionals develop the skills and knowledge they need to succeed in their careers. Whether you’re interested in networking, cybersecurity, or network security, we have a course that’s right … Read more