[Lex Computer & Tech Group/LCTG] Comcast experimenting with hollow core fibre optics

[Rich Moffitt]

I thought DOCSIS <https://en.wikipedia.org/wiki/DOCSIS>3.1 already
supported upstream channel bonding upwards of 1 Gbit/s. I recall setting up
an office in downtown Boston in 2012 that used DOCSIS 3.0 and the Comcast
Business connection was 100/100 Mbit/s symmetrical.

I think 4.0 sounds very interesting, but for residential use cases,
wouldn't the ISP have to be willing to support higher upstream rates
through other parts of their network, and not so much the "last mile?"

-Rich


On Wed, Feb 8, 2023 at 12:51 PM Drew King <dking65 at kingconsulting.us> wrote:

> I'm anxiously waiting for DOCSIS 4.0. This is the specific technology that
> allows those of us on Comcast, and other non-FIOS providers, to finally get
> more than a measly 25 MB/sec upload speed.
>
> https://www.cablelabs.com/technologies/docsis-4-0-technology
>
>
> Besides allowing for ultra-fast speeds, one of the best things about 10G
> technology (another name for 10 gigabit per second internet) is that* it
> won’t require any new connections to be installed, which means you won’t
> have employees from your ISP digging up your yard.*
>
> Now that Comcast has demonstrated how DOCSIS 4.0 modems and 10G can work
> together to deliver multi-gig internet speeds, the company is starting a *nationwide
> rollout which it says will reach 50 million homes and businesses in the
> U.S. before the end of 2025.*
>
> If you’re a Comcast customer looking for faster internet speeds, the
> company plans to begin offering 2-gig plans next year.
>
>
>
> On 2/8/2023 11:59 AM, Larry Wittig wrote:
>
>
> https://corporate.comcast.com/press/releases/comcast-first-isp-hollow-core-fiber-faster-speed-lower-latency
> They have a 40 km cable near Phily, and it can transmit in both directions
> simultaneously.  The article says they are getting ready for 10G.
>
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