Crappy Upstream Cable Speeds Should Soon Be a Thing of the Past our cable connection's pathetic upstream speeds may soon be a thing of the past. CableLabs recently announced the successful completion of the Full Duplex DOCSIS 3.1 specification, which should ultimately help cable companies deliver symmetrical (both upstream and downstream) speeds of up to 10 Gbps. But the organization has since announced the release of the full DOCSIS 3.1 Physical Layer Specification, which should pave the way for commercial deployment of much faster cable speeds over the next five years or so.

For its part, Comcast says it's working with CableLabs and its vendors to make Distributed Access Architecture nodes Full Duplex (FDX)-capable. Full-fledged deployments of Full Duplex (FDX) DOCSIS are still quite a few years away, but CableLabs members told attendees of an industry event this week that suppliers have made enough progress to be ready for initial interoperability testing later this year. Cable’s upstream has long been relegated to a limited slice of bandwidth (5 MHz to 42 MHz) referred to as a "low split." To dramatically increase upstream cable speeds, cable operators have been exploring a "mid-split" that would bump the ceiling to 85 MHz, or a "high-split" that would push it to 200 MHz. Full duplex technology would eliminate the need for these splits entirely. Ultimately, these advancements should result in full duplex 10 Gbps bandwidth per node, up from the original 10 Gbps down, 1 Gbps DOCSIS 3.1 standard. That should ultimately be great news for cable broadband customers who want more than the 35 Mbps maximum upstream delivered by companies that have already partially deployed DOCSIS 3.1 updates. Ultimately, these advancements should result in full duplex 10 Gbps bandwidth per node, up from the original 10 Gbps down, 1 Gbps DOCSIS 3.1 standard. That should ultimately be great news for cable broadband customers who want more than the 35 Mbps maximum upstream delivered by companies that have already partially deployed DOCSIS 3.1 updates.







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Most recommended from 30 comments



buzz_4_20

join:2003-09-20

Biddeford, ME 7 recommendations buzz_4_20 Member Someday... Not any time soon. Still waiting to see something remotely close to what Docsis 3.0 is supposed to do. shmerl

join:2013-10-21 4 recommendations shmerl Member It's been a few years away... So it doesn't seem to be moving anywhere. well, for yearsSo it doesn't seem to be moving anywhere.

maartena

Elmo

Premium Member

join:2002-05-10

Orange, CA 3 recommendations maartena Premium Member Promises, Promises.... We've been hearing about higher upload speeds for years. Not just with DOCSIS 3.1, even DOCSIS 3.0 could bring upload speeds of 50-100 Mbps as it has 4 upload channels..... none of that happened, if you are lucky you get a whopping 35 Mbps upload when you get a Gigabit connection.



For me.... its seeing before believing. I'm sure it will happen some day, but I am skeptical about Gigabit in BOTH directions over cable.... I'm sure it's going to be 100 or 200 Mbps at first. And that's a maybe.... tmc8080

join:2004-04-24

Brooklyn, NY 3 recommendations tmc8080 Member EL CHEAPO cable comapnies The El Cheapo cable companies never fully deployed the docsis 3.0 spec which REQUIRED higher grades of COAX and deeper last mile fiber than they were willing to $$ SPEND $$ on upgrades.. with VERY LITTLE competitive pressure, do you REALLY expect docsis 3.1 to be any different in this case?

You really got some gullible customer base if you think so!!!

The original docsis 1.1 spec was supposed to offer 10/10 megabits service, and after a while, cable companies decided they can service more customers by splitting the nodes and dicing the bandwidth to send more down than up while saving node spits which saved real money and allowed for the expansion of video channels which were more profitable. Now that customers are leaving for the streaming video services offered OTT for on the internet streaming from wherever.. cable companies will STILL not be chomping at the big to offer symmetrical-- only as a way to jack up rates incrementally.