How to deliver a switch, when the wiring and port standard isn't actually workable?
10GBase-T is out of Voltage Spec with SFP+ ; you can get copper SFP+ but they are out of spec... 10GbaseT doesn't really work over Cat5e more than a couple of meters (if you are lucky) and even Cat6 is only rated at 30M... there is a reason no-one is producing Home Copper switches and it's not just the NIC Silicon cost (that was a factor until Recently obviously, but only part of the equation). On the flip side: Right now I am typing this via a 40gbit network, comprised of the cheap and readily available Tb3 port - it's daisy chained and limited to 6 ports, but right now it's easily the cheapest and most effective port. Pitty that the fabled optical tb3 cables are damn expensive... so you're limited to daisy-chains of 2m. They seem to have screwed the pooch on the USB-C network standard quite badly - which looked so promising, so for the moment Tb3 it is for me at least. On 4 December 2017 at 23:18, Mikael Abrahamsson <swm...@swm.pp.se> wrote: > On Mon, 4 Dec 2017, Joel Wirāmu Pauling wrote: > >> I'm not going to pretend that 1Gig isn't enough for most people. But I >> refuse to believe it's the networks equivalent of a 10A power (20A >> depending on where you live in the world) AC residential phase >> distribution circuit. > > > That's a good analogy. I actually believe it is, at least for the near 5-10 > years. > >> This isn't a question about what people need, it's more about what the >> market can deliver. 10GPON (GPON-X) and others now make it a viable >> service that can and is being deployed in residential and commercial >> access networks. > > > Well, you're sharing that bw with everybody else on that splitter. Sounds to > me that the service being delivered over that would instead be in the 2-3 > gigabit/s range for the individual subscriber (this is what I typically see > on equivalent shared mediums, that the top speed individual subscriptions > are will be in the 20-40% of max theoretical speed the entire solution can > deliver). > >> The problem is now that Retail Servicer Provider X can deliver a post >> Gigabit service... what is capable of taking it off the ONU/CMNT point in >> the home? As usual it's a follow the money question, once RSP's can deliver >> Gbit+ they will need an ecosystem in the home to feed into it, and right now >> there isn't a good technology platform that supports it; 10GBase-X/10GBaseT >> is a non-starter due to the variability in home wiring - arguably the 7 year >> leap from 100-1000mbit was easy It's mean a gap of 12 years and counting for >> the same.. it's not just the NIC's and CPU's in the gateways it's the >> connector and in-home wiring problems as well. > > > As soon as one goes above 1GE, prices increases A LOT on everything > involved. I doubt we'll see any 2.5G or higher speed equipment in wide use > in home/SME in the next 5 years. > >> Blatant Plug - request : >> I'm interested to hear opinions on this as I have a talk on this very >> topic 'The long and Winding Road to 10Gbit+ in the home' >> https://linux.conf.au/ at Linuxconf in January. In particular if you >> have any home network gore/horror stories and photos you would be >> happy for me to include in my talk, please include. > > > I am still waiting for a decently priced 10GE switch. I can get 1GE 24port > managed ones, fanless, for 100-200USD. As soon as I go 10GE, price jumps up > a lot, and I get fans. The NICs aren't widely available, even though they're > not the biggest problem. My in-house cabling can do 10GE, but I guess I'm an > outlier. > > > -- > Mikael Abrahamsson email: swm...@swm.pp.se _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat