Comcast announced a Full Duplex DOCSIS 4.0 system-on-chip (SoC) cable modem built by chipset major Broadcom delivered upload and download speeds of 4 Gbps powered by 10G network technology.
Comcast, in October 2021, announced a test of a complete 10G connection using a virtualized cable modem termination system (vCMTS) powered by DOCSIS 4.0 technology.

Comcast, in April 2021, announced the live lab test of a 10G system-on-chip (SOC).

Comcast, in October 2020, announced a trial delivering 1.25 gigabit-per-second (Gbps) upload and download speeds over a live production network using Network Function Virtualization (NFV) combined with the latest DOCSIS technology.

A key component of 10G, DOCSIS 4.0 is an evolutionary leap forward in the ability to deliver multigigabit upload and download speeds over the connections already installed in hundreds of millions of homes worldwide.

“The great strength of our smart network design is that we are able to exceed our customers’ demands today, even as we continuously evolve to meet the needs of the future,” said Charlie Herrin, President of Technology, Product, Experience at Comcast Cable.

Connected by Broadcom 10G technology, the modem test utilized the DOCSIS 4.0 FDX SoC device to pair with two cable modem chips to deliver the breakthrough performance. These were connected over a lab-based hybrid fiber-coaxial network to the vCMTS operating in DOCSIS 4.0 mode.

This represents the first complete network connection of all-DOCSIS 4.0 components that are required for deployment. The demonstrated speeds – which were faster than 4 Gbps upload and download – are expected to increase significantly as developers refine technology at every level of the 10G architecture.

“With each new milestone, we get a clear picture of how 10G technologies will unlock speed and performance for people worldwide,” said Elad Nafshi, Senior Vice President of Next Generation Access Networks at Comcast Cable.