Two thin access points are connected to the same switch

Two thin (lightweight) access points can be connected to the same switch using trunk ports, with proper VLAN configuration and CAPWAP discovery to ensure seamless network operation.Switch and VLAN ConfigurationWhen connecting multiple thin APs to a single switch, each AP should be connected to a trunk port on the switch. This allows multiple VLANs to traverse the link, including:AP management VLAN (native VLAN on the trunk) for CAPWAP control trafficSSID VLANs for client data traffic All VLANs that the APs will serve must be allowed on the trunk ports. Each AP can then map wireless SSIDs to the corresponding VLANs, enabling proper segmentation of corporate, guest, or other networks .AP Discovery and CAPWAPThin APs rely on a controller (WLC) for configuration and management. The APs must discover the controller before becoming active. Discovery methods include:Layer 2 discovery using broadcast on the same subnetLayer 3 CAPWAP discovery for APs on different subnetsDHCP Option 43 to provide the controller IPDNS discovery using a configured domain name Once discovered, the AP establishes a CAPWAP tunnel to the controller, which manages SSIDs, VLAN mapping, and policies.Traffic Flow and Local SwitchingDepending on the deployment:Central switching: All client traffic is tunneled to the controller before reaching the wired network.FlexConnect/local switching: APs bridge client traffic directly to the VLANs on the switch, reducing controller load and latency .Best PracticesEnsure each AP has a unique IP for management.Configure trunk ports with the AP management VLAN as native and allow all client VLANs.Use consistent SSID-to-VLAN mapping across APs for seamless roaming.Verify DHCP availability for client VLANs and AP management VLAN.Monitor CAPWAP tunnels and syslog messages to ensure APs remain connected and properly managed . By following these steps, two or more thin APs connected to the same switch can operate efficiently, providing wireless coverage while maintaining proper VLAN segmentation and centralized management.