Comcast revealed that it has successfully tested a new prototype DOCSIS 4.0 modem that is designed to bring 10G technology into customers’ homes for the first time.
According to the broadband provider, the new unit has achieved symmetrical download and upload speeds in excess of 4 gigabits per second (Gbps) thanks to its “Full Duplex DOCSIS 4.0 system-on-chip (SoC).” While these figures were collected in a laboratory environment, Comcast claims the new model is capable of even faster data transmission rates in the future, as the company continues to chase the eponymous 10Gbps potential transfer rates promised by 10G networks.
The cable company’s product reveal is just the latest stop on the long road it has been on to make 10G technology viable for consumer broadband. Previous milestones have included testing 10G connections over a virtualized cable modem termination system (vCMTS) using the same DOCSIS 4.0 technology found in the new modem and an earlier test of a 10G SoC, which used Network Function Virtualization (NFV) technology and Comcast’s live residential network to reach a more modest 1.25Gbps.
The use of its existing nationwide network is a major goal for Comcast, which touted the fact that DOCSIS 4.0 can allow 10G transmissions via its existing cable infrastructure, with only the modem at endpoints in user homes likely needing to be replaced in most markets.
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