Category Archives: Network Troubleshooting

VTP Modes of Operation – How VTP Works.

VTP has three different modes of operation within a domain: Server, Client and transparent. VLANs Trunking Protocol – VTP uses advertisements to communicate VLAN information between switches in a network. When a switch is configured as a VTP server, it can create, modify, and delete VLANs, which are then propagated to other switches in the same VTP domain.… Read More »

VTP Pruning Explained with Examples.

What is VTP Pruning? VTP (VLAN Trunking Protocol) pruning is a feature in Cisco network switches that optimizes the use of bandwidth by reducing unnecessary traffic related to VLANs (Virtual Local Area Networks). Simply put, it is a technique for controlling the distribution of VLAN details throughout a network.This technique helps to ensure that VLAN configurations are consistent… Read More »

Troubleshooting EtherChannel Explained.

If you had been studying EtherChannel; you will understand that it is a port link aggregation technology developed by Cisco, used primarily in networking to combine multiple physical Ethernet links into a single logical link. This aggregation method enhances the bandwidth and reliability of the network connection. Here are key aspects of EtherChannel: Bandwidth Improvement: By combining, for… Read More »

Troubleshooting InterVLAN Routing.

How To Troubleshoot InterVLAN Routing. What is Inter-VLAN Routing? Inter-VLAN routing involves routing network traffic between various VLANs (Virtual Local Area Networks). VLANs are utilized to divide a larger network into smaller, isolated networks to enhance security, improve traffic management, and boost performance. In order for devices in different VLANs to communicate with each other, a router or… Read More »

Troubleshooting VLAN Trunk Modes Mismatch Example.

Error#2. How to Troubleshoot Trunk Mode Mismatches Trunk mode mismatches in networking occur when there is a configuration inconsistency between network devices (like switches) connected through a trunk link. A trunk link is used to pass traffic from multiple VLANs across network devices. Understanding trunk mode mismatches requires a grasp of a few key concepts: Trunk Mode: In… Read More »