DOCSIS 4.0 spec[1] was first issued circa Aug 2019 and has undergone 6-10 revisions since.
[1] https://www.cablelabs.com/specifications/search?currentPage=...
"up to 10 Gbit/s downstream and 1 Gbit/s upstream"
Most of the 4.0 improvement is upload.
3.1 wouldn't do 2Gbps symmetrical, but it would do 2Gbps down with a reasonable up.
"up to 10 Gbit/s downstream and 1 Gbit/s upstream"
Most of the 4.0 improvement is upload.
3.1 wouldn't do 2Gbps symmetrical, but it would do 2Gbps down with a reasonable up.