This guide provides a step-by-step walkthrough on how to configure VLAN on Cisco switch, covering VLAN creation, assigning ports to VLAN Cisco switches, configuring trunk ports, best practices, and VLAN troubleshooting Cisco switch methods. Should the VLANs be created and configured on the core switch, or directly on the Peplink 3? Which approach is considered best practice, and why? Thanks in advance for your advice! Either is fine, but whatever you choose, that needs to be the one and only place you manage them from or add new ones. Insufficient information to say whether it matters or not. For example, if your core is L2, than likely you'll need your new voice VLAN there too. 10-03-2022 10:08 AM I agree with Joseph that we do not understand your. In the intricate world of networking, data packets traverse a complex landscape, moving between servers, client devices, and various network segments. At the heart of this activity lies the core switch, a critical component responsible for facilitating high-speed data transmission and maintaining. Virtual Local Area Networks (VLANs) are essential for network segmentation, security, performance, and scalability. Up to 4094 VLANs can be configured on Cisco catalyst switches. By default, only VLAN 1 is configured on the switch, so if you connect hosts on an out-of-the-box switch they all belong to. In this scenario, IP addresses of the interfaces connecting the core switch to the BRASs and firewalls and OSPF need to be configured on the core switch, so as to implement connectivity between the user network to egress network through the core switch.