
On Fri, Mar 03, 2023 at 09:37:10AM -0500, Alvin Starr via talk wrote:
Feel free to correct me but I believe that all the "optical" and co-axial cable based services are shared(GPON).
What internet isn't these days? My current 25Mbit DSL link goes to a box a few hundred meters down the street and then to a shared fiber link back to Bell. They are all "up to" some speed.
So you could be sharing your 2.5Gb with up to 100 other people and if everybody decides to download a few hundred GB of video files at the same time you could be seeing speeds like 25Mb. So last mile bit rate is almost always much greater than the bandwidth that is available from the end node(home) to the core(151 front). I have seen 6Mbit DSL reduced to hundreds of bps by chronic back-haul congestion.
So a fiber/cable modems buffering with a 1Gb output may be enough to cover the practical bandwidth available on a reasonably loaded network.
My understanding is that the shared part is at least 10Gbit for each segment. Not sure how many houses would share one segment. I still expect a fiber connection to be faster than my 25Mbit DSL connection. And it's not like people are constantly downloading, so I would think for the most part you ought to get decent speed in most cases, although of course what speed the server at the other and can provide you is a different story. It's only as fast as the slowest link. -- Len Sorensen