Stream of Knowledge

 Configuring and Verifying VTP v2 Configuring VTP Verifying the topology Before you start configuring VLAN Trunking Protocol on Cisco switches, it is very important to first verify that all inter-switch links are  trunks . Especially in lab/test environments, engineers often spent time troubleshooting VTP issues and in the end, it turns out that the problem is not with the VTP but with the Interswitch links. IMPORTANT TO REMEMBER  VTP messages are sent and received on trunk links only. In this configuration example, we will use the topology shown in Figure 1. Before we start configuring the VTP, let's verify the trunks and how many VLANs are configured. The easiest way to verify this by checking Switch 2, because it has links to all other switches. SW2# sh interfaces trunk Port Mode Encapsulation Status Native vlan Fa0/1 desirable n-802.1q trunking 1 Fa0/2 desirable n-802.1q trunking 1 Fa0/3 desirable ...