<div dir="ltr"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px">So now they want to skip 6G-9G and go straight to 10G?</span></blockquote><div><br></div><div>No, 10G refers to 10 gigabit terrestrial networking speeds, not wireless (of which 6G is currently in development). To your point it's still pretty much marketing fluff, though. Even DOCSIS 4.0 is basically a rebrand of a revision to DOCSIS 3.1 called "full duplex". 10G appears to be the marketing term for DOCSIS 4.0 implementations (because it supports up to 10Gbit/s downstream and up to 6Gbit/s upstream), which is mildly nauseating.</div><div><br></div><div>DOCSIS 3.0 supports up to 200Mbit/s upstream, but there are a bunch of caveats that prevent users from seeing that kind of speed. I didn't quite realize how many obstacles there were to achieving higher upstream speeds in DOCSIS 3.0 despite supporting them on paper until I read this very helpful reddit thread explaining what the deal is:</div><div><a href="https://www.reddit.com/r/Comcast_Xfinity/comments/scnakx/why_doesnt_comcast_offer_symmetrical_1_gbps/">(4) Why doesn't Comcast offer symmetrical 1 Gbps service over DOCSIS 3.1? : Comcast_Xfinity (reddit.com)</a><br></div><div><br></div><div>TL;DR: DOCSIS 4.0 will probably help a lot. Other upgrades to the infrastructure have to happen also, but some aspects of the 3.0 / 3.1 specification kept cable ISPs from being able to easily increase upstream speeds while supporting a lot of "legacy" signals as well and staying within power limits.</div><div><br></div><div>-Rich</div><div><br></div><div><br></div><div> </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 8, 2023 at 3:03 PM Mitchell I. Wolfe <<a href="mailto:mwolfe@vinebrook.com">mwolfe@vinebrook.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
<p>I think Drew lives in Florida.</p>
<p>The situation is somewhat different in the metropolitan Boston area. For example, in Lexington with three available wired internet providers (Comcast, Verizon FIOS, and Astound/RCN) there is more competition. </p>
<p>I pay RCN about $75 monthly (without sign-up promotion) and get close to the advertised 250 Mbps speed I am paying for. I'm using an Arris CM820 DOCSIS 3.0 cable modem bought used years ago for $20 on eBay. RCN offers up to 1.2 Gbps.</p>
<p>Comcast messes around differently in different markets...</p>
<p>-- Mitch</p>
<p id="m_-8255933591978535881v1reply-intro">On 2023-02-08 14:29, Drew King (<a href="mailto:dking65@kingconsulting.us" target="_blank">dking65@kingconsulting.us</a>) wrote:</p>
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<div dir="auto"> Correct. According to the specifications, they should be able to offer residential customers bandwidth more like fios. For whatever reason, every time I have asked to pay more money to get more speed they have turned me down.<br><br><br>If Comcast practically could sell you more than 25MB per sec up stream residential today they would be offering it to people willing to pay for it, only they're not. I don't know of any residential Comcast customers that have more than 25MB up.<br><br>4.0 Is going to change things In such a way that it will become possible for them to realistically offer and deliver on higher upload speeds than what they are willing to offer today.<br><br>Something is holding them back from offering residential customers higher bandwidth for a higher price today.</div>
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<div>-- <br>Drew King<br><br></div>
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<div dir="auto">On February 8, 2023 1:27:31 PM EST, Rich Moffitt <<a href="mailto:rich@richmoffitt.org" target="_blank">rich@richmoffitt.org</a>> wrote:</div>
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<div dir="ltr">I thought <a href="https://en.wikipedia.org/wiki/DOCSIS" rel="noopener noreferrer" target="_blank">DOCSIS </a>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.
<div> </div>
<div>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?"</div>
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<div>-Rich</div>
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<div dir="ltr">On Wed, Feb 8, 2023 at 12:51 PM Drew King <<a href="mailto:dking65@kingconsulting.us" rel="noreferrer" target="_blank">dking65@kingconsulting.us</a>> wrote:</div>
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<p><span style="font-size:large">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. <br></span></p>
<p><span style="font-size:large"><a href="https://www.cablelabs.com/technologies/docsis-4-0-technology" rel="noopener noreferrer" target="_blank">https://www.cablelabs.com/technologies/docsis-4-0-technology</a><br></span></p>
<p><span style="font-size:large"> </span></p>
<p><img width="645" height="308"></p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-weight:400;font-stretch:inherit;line-height:1.5;font-family:"Open Sans",sans-serif;font-size:16px;vertical-align:baseline;color:rgb(51,51,51);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Besides allowing for ultra-fast speeds, one of the best things about 10G technology (another name for 10 gigabit per second internet) is that<span style="color:rgb(0,0,255)"><strong> it won't require any new connections to be installed, which means you won't have employees from your ISP digging up your yard.</strong></span></p>
<p style="margin:0px 0px 1em;padding:0px;border:0px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-weight:400;font-stretch:inherit;line-height:1.5;font-family:"Open Sans",sans-serif;font-size:16px;vertical-align:baseline;color:rgb(51,51,51);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">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 <span style="color:rgb(0,0,255);font-size:x-large"><strong>nationwide rollout which it says will reach 50 million homes and businesses in the U.S. before the end of 2025.</strong></span></p>
<p style="margin:0px 0px 1em;padding:0px;border:0px none;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-weight:400;font-stretch:inherit;line-height:1.5;font-family:"Open Sans",sans-serif;font-size:16px;vertical-align:baseline;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="color:rgb(0,0,255)">If you're a Comcast customer looking for faster internet speeds, the company plans to begin offering 2-gig plans next year.</span></p>
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<div>On 2/8/2023 11:59 AM, Larry Wittig wrote:</div>
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<div style="font-family:georgia,serif"><a href="https://corporate.comcast.com/press/releases/comcast-first-isp-hollow-core-fiber-faster-speed-lower-latency" rel="noopener noreferrer" target="_blank">https://corporate.comcast.com/press/releases/comcast-first-isp-hollow-core-fiber-faster-speed-lower-latency</a></div>
<div style="font-family:georgia,serif">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.</div>
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