![]() ![]() The next step of the transition is to IPTV (pg. They recently did that through converting digital TV to MPEG-4. Comcast is reclaiming network spectrum (bandwidth) from QAM TV for general internet use as needed.I read elsewhere that Comcast was using RFoG (which uses QAM-based TV) for their FTTH installations up until some point in 2016, when they switched over to EPON, which is 100% IPTV-based, so does not support TiVo/CableCARD.Existing MDUs are being served (under the "Comcast Advanced Communities Network" brand) with an EPON overlay for internet while TV continues to run over HFC.Perhaps if a neighborhood has one or more customers paying to have the 2 GB/sec "Gigabit Pro" service installed - which I think is EPON FTTH - then that increases the chances of Comcast converting the whole street/neighborhood? From what I've gleaned elsewhere, I think the determination is based on what's available from competitors (e.g. Select existing neighborhoods/streets are being opportunistically ("success-based") converted from HFC to EPON FTTH.All new construction - whether single homes or MDUs (condos & apartments) - has been getting connected by EPON FTTH since 2016.36 of the presentation states, "Long-term transition to FTTH throughout the footprint." I read elsewhere that Comcast is structuring this in a way so that all those customers can eventually - late 2020s? - switch the last leg of those connections from coax to fiber, converting them to EPON FTTH. ![]() All this involves a deep-fiber approach with a node+0 topology. Comcast's plans for the majority of its footprint is to upgrade their HFC network to DOCSIS 3.1 with gigabit speeds (which is by now done or nearly so), then symmetrical full-duplex D3.1 (symmetrical 1 GB/sec), with eventual symmetrical speeds up to 10 GB/sec.I'm posting this as a response to your particular post about Comcast doing EPON FTTH installations but the stuff in this presentation speaks to a number of questions batted around by several of us on this forum thread.Ĭomcast's Network Architecture - ppt video online download It's from back in 2016, so some things - particularly target dates - may have changed since then but I tend to think that the content is still generally valid in terms of where Comcast is going. Click to expand.Today I stumbled across a PowerPoint presentation from Comcast about their future network architecture plans. ![]()
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