https://blog.wongcw.com/2022/09/11/comcast%e5%ae%a3%e5%b8%832gbps%e4%b8%8a%e4%b8%8b%e8%a1%8c%e5%b0%8d%e7%a8%b1%e5%af%ac%e5%b8%b6%e6%ad%a3%e5%9c%a8%e5%90%91%e7%be%8e%e5%9c%8b%e6%95%b8%e7%99%be%e8%90%ac%e4%ba%ba%e6%8e%a8%e5%87%ba/