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Arthur T Knackerbracket has found the following story:
Cisco has dropped an open reference design for DOCSIS silicon into the CableLabs standards body.
The group has been working on Full Duplex DOCSIS for some time, and in February announced that the gigabit up / gigabit down effort was worth pursuing.
Switchzilla has been pursuing it, and has handed over its design for a digital echo canceller that integrates with DOCSIS Cable Modem Termination System (CMTS) standards (CMTS specifications cover the cable hubs on the provider side of the network).
Cisco says the echo canceller will work for upstream carrier frequencies from 200 MHz (1.7 Gbps) all the way to 1.2 GHz (for a 10 Gbps upstream channel).
While Cisco hasn't detailed the specifics of the echo cancellation reference design, by providing it royalty-free through CableLabs the company hopes to give the Full Duplex effort a kick along.
The current DOCSIS 3.1 spec supports 10 Gbps down but a maximum of only 1 Gbps upstream.
The CableLabs feasibility study in February was followed by a Nokia demonstration in May. Nokia's Bell Labs showed that a point-to-point hybrid fibre-coax network can hit 10 Gbps symmetrical speeds.
(Score: 2) by tynin on Friday August 12 2016, @03:06AM
10 Gbit is becoming the new 25 Gbit, and 40 Gbit is becoming the new 100 Gbit with only a firmware upgrade in many cases. Why do we need a hybrid half copper, half optic solution that is slower? While conspiratorial, it seems to me that the copper half of the equation is easier to splice into without anyone noticing, whereas an entirely optic solution would notice the splice.
(Score: 1, Insightful) by Anonymous Coward on Friday August 12 2016, @03:27AM
They just siphon the data at the backbone switches nowadays. That combined with customer data from the ISP is enough to hang people.
As to why Cisco might want to provide this royalty free: They make a lot of money off their switches, and providing ways to push ISPs to purchase their higher throughput switches throughout the infrastructure, rather than using asymmetric data rates with content mirroring/peering for any 'consumable' content would help them sell more 'baseline' bandwidth routers since consumers can no longer be relied upon to only pull traffic when they have the ability to push it instead.