https://tongfamily.com/2022/03/06/moving-to-1-2gbps-xfinity-broadband-with-arris-sb8200-and-ubiquiti-udm-pro-and-48-port-switch/
Moving to 1.2Gbps Xfinity Broadband with Arris SB8200 and Ubiquiti UDM Pro and 48 port switch