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April 24, 2021 12:02 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/T4YFAGEKEB0/one-step-closer-to-getting-10-gigabit-at-home
One Step Closer To Getting 10 Gigabit At Home
An anonymous reader quotes a report from ZDNet: Now, thanks to Comcast and Broadcom, we're seeing the first tests of full-duplex (FDX) DOCSIS 4 system-on-chip (SoC) devices. Comcast's tests, done between Philadelphia and Denver, show that FDX can work with DOCSIS 4. FDX enables cable internet providers to run a high-speed internet connection both upstream and downstream simultaneously. In other words, while you won't see symmetric speeds, you will someday see 10 Gbps downstream and 6 Gbps upstream over Comcast's hybrid-fiber coaxial (HFC) network. Comcast has been working towards this for years. The company has been working to bring DOCSIS 4 FDX to market pretty much since CableLabs' set the specification in 2017. There is another way to deliver DOCSIS 4 speeds: Extended Spectrum DOCSIS (ESD). This is easier to deploy since it "only" raises to 1.8Gbps while keeping downstream and upstream traffic separate as has been the case with previous DOCSIS versions. Comcast, though, is investing heavily in chasing the top price of 10Gbps. It's possible that a single chipset could support both FDX and ESD, but we're still years away from that silicon being forged. [...] In the tests, which use experimental Broadcom SoCs, in a simulated network environment, they hit speeds of over 4Gbps both up and downstream simultaneously. This was done using DOCSIS 4's echo cancellation and overlapping spectrum techniques. The businesses expect future optimization to push the throughput even faster. We still don't know when these speeds will arrive in our small offices/home offices (SOHO). CableLabs doesn't even expect to test hardware for DOCSIS 4 certification until 2022. Nor, has Comcast announced any kind of deployment roadmap.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/T4YFAGEKEB0/one-step-closer-to-getting-10-gigabit-at-home
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