If a new VLAN is configured on SW1, will the VLAN be automatically created on SW3?

When a new VLAN is configured on a switch that uses VTP (VLAN Trunking Protocol), it can be propagated to other switches in the same VTP domain. However, for this propagation to occur, specific conditions must be met, including a matching VTP version across the participating switches. If the VTP versions are not the same, the switches will not share VLAN information, which means that the new VLAN created on SW1 will not automatically be recognized or created on SW3.

This emphasizes the importance of maintaining consistency in VTP configurations across the network devices, as discrepancies can lead to communication issues and segmentation problems within the VLANs. Additionally, while being part of the same VTP domain is necessary for VLAN information sharing, without matching VTP versions, even being in the same domain is not sufficient for automatic VLAN creation.