What’s Missing from Comcast Symmetrical Multi-Gigabit Live Connection Announcement

Comcast said that it successfully completed a trial of 10G and full duplex DOCSIS 4.0 technology delivering symmetrical multi-gigabit speeds on a live connection. The company said it will continue to trial the technology “over the next several months in preparation for offering 10G-enabled services to customers in the second half of 2023.” The cable industry uses the term “10G” for a range of technology advances aimed at enhancing internet connectivity. Full duplex DOCSIS 4.0 is one of those advances. A key goal of the 10G initiative is to provide symmetrical multi-gigabit services that have not been possible with traditional asymmetrical cable infrastructure. But while Cablelabs 10G standards call for 10 Gbps speeds downstream, developers have not yet found a way to deliver 10 Gbps speeds symmetrically and the cable industry still seems to be in the process of determining just what its maximum symmetrical speeds will be.