The jumbo frames feature enables the configuration of physical Maximum Transmission Unit (MTU) sizes up to 1800 bytes on the access point and appliance Ethernet data plane ports. The Admin port, all protocols, and interfaces continue to use the standard MTU size of 1500 bytes.
Enable Jumbo Frames to facilitate the transmission of MU data between the access point and the appliance, or between the access point and a bridge for VxLAN topologies, without incurring fragmentation.
To configure the bridge for jumbo frames support using the Proxmox VE procedure: