[Cerowrt-devel] [Bloat] DC behaviors today

[Joel Wirāmu Pauling]

Bingo; that's definitely step one - gateways capable of 10gbit
becoming the norm.

On 4 December 2017 at 23:43, Pedro Tumusok <pedro.tumusok at gmail.com> wrote:
> For in home or even SMB, I doubt that 10G to the user PC is the main use
> case.
> Its having the uplink capable of support of more than1G, that 1G does not
> necessarily need to be generated by only one host on the LAN.
>
>
>
> Pedro
>
> On Mon, Dec 4, 2017 at 11:27 AM, Joel Wirāmu Pauling <joel at aenertia.net>
> wrote:
>>
>> 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 <swmike at 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: swmike at swm.pp.se
>> _______________________________________________
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>
>
>
>
> --
> Best regards / Mvh
> Jan Pedro Tumusok
>
>
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