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If you get the chance, always run more extra network fiber cabling

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Re: If you get the chance, always run more extra network fiber cabling

#91

Post by ianburrell »

mmastrac wrote: post #36
bhouston wrote: post #14

Yeah, we got a new house built 4 years ago and one of the biggest regrets is not enough ethernet outlets (running fibre in the house isn't practical yet) and power outlets in various places. It is really hard to think of all the places you would want them ahead of time unfortunately and as each has a cost you don't want to incur it unnecessarily. But my biggest regrets were: - Only a single ethernet port in the basem…

If you have any way to pull cables between floors, try pulling DAC cables. They give you 10+G, require no splicing (hardware can be found cheap now), and generally just work as you'd expect. With a 10G backbone, you can get away with basement->main and main->upstairs in a three-floor house, with a small bridge on your main floor.

There is no reason to pull DAC when fiber has gotten cheap. Singlemode fiber is cheap enough now that isn't worth doing multimode fiber. You can get pre-terminated fiber that is easier to pulling whole DAC transceiver.

DAC is still useful for within rack.

Re: If you get the chance, always run more extra network fiber cabling

#92

Post by hinkley »

lotharrr wrote: post #78
hinkley wrote: post #29

Earlier quoted context omitted.

I routinely wish someone had designed a power outlet shaped switch that runs on POE. But some brands would run too hot for an enclosed space and a Netgear one would burn your fucking house down.

I've been pretty happy with Unifi's "In-Wall" AP (e.g. https://store.ui.com/us/en/category/wifi-wall/products/u6-iw ): PoE powered, has four downstream RJ45 ports (one with PoE itself), and is a side-firing WiFi AP as well. Like the sibling comment said, they're made for hotel rooms, but I've never been in a hotel fancy enough to use them (possibly because the RJ45 sockets aren't particularly discoverable, being on t…

Yeah surface mounts aren't bad. Combined switch and Wifi is good.

Seems like for discoverability you'd have to mount it backward or upside down somewhere so that people can see the ports, and then what about the wifi signal? I see what you mean.

Re: If you get the chance, always run more extra network fiber cabling

#93

Post by hoaxminion »

bhouston wrote: post #75
npodbielski wrote: post #73

Earlier quoted context omitted.

I was thinking about this and it is very expensive. And do I need 10G really? I do not think so. I did calculated few things when I was thinking about 10G and most probably I will not saturate 1G for few years. And with phones ans laptops mostly WiFi is used anyways. So can I ask you what is the advantage for using 10G equipment in your case? Even something really dull like network card costs around 100€.

10G is awesome for (1) downloading steam games - many are +50GB these days, (2) downloading Ollama models, (3) downloading ISOs, (4) downloading app/OS updates and (5) I have a NAS also on the 10G network for media backups. I have symmetric 3Gbps fibre to the home via Bell Canada and it reports 4.5Gbps via fast.com.

[dead]

Re: If you get the chance, always run more extra network fiber cabling

#94

Post by jedberg »

JoshTriplett wrote: post #39

No mention in the article of making sure to run conduit , so you can always add more cables easily.

It should mention conduit for sure, but sometimes conduit is hard if you want to stick to the rule of no more than 180 degrees of bend in the line (and no more than 90 at one bend). Long conduit runs need junction boxes at some of of the bends, and it's hard to always make those accessible.

Re: If you get the chance, always run more extra network fiber cabling

#95

Post by LgWoodenBadger »

bhouston wrote: post #28
yjftsjthsd-h wrote: post #21

Earlier quoted context omitted.

> Only a single ethernet port in the basement. Then the kid wanted a gaming station and we moved where the TV was. I should have put like 4 down there. Is it so bad to put in a switch?

It does sort of suck because I have cabling running along the baseboards. Also I have 10G networking so the switches are costly and hot at least this generation.

How would multiple runs have helped you with that problem? Either they’re all in the same spot, and a switch would solve it, or they’re on all different walls and you’d still likely have to run cables to the things.

Re: If you get the chance, always run more extra network fiber cabling

#96

Post by hnuser123456 »

bhouston wrote: post #75
npodbielski wrote: post #73

Earlier quoted context omitted.

I was thinking about this and it is very expensive. And do I need 10G really? I do not think so. I did calculated few things when I was thinking about 10G and most probably I will not saturate 1G for few years. And with phones ans laptops mostly WiFi is used anyways. So can I ask you what is the advantage for using 10G equipment in your case? Even something really dull like network card costs around 100€.

10G is awesome for (1) downloading steam games - many are +50GB these days, (2) downloading Ollama models, (3) downloading ISOs, (4) downloading app/OS updates and (5) I have a NAS also on the 10G network for media backups. I have symmetric 3Gbps fibre to the home via Bell Canada and it reports 4.5Gbps via fast.com.

If I get this new job I'm definitely upgrading everything to 10G.

My PCIe5 SSD can do 14 GB/s, or about 112 gbit/sec.

Did some research. 10gbe cards are about $30, 100gbe qsfp28 cards are about $300, 100gbit 100m transciever about $100.

Re: If you get the chance, always run more extra network fiber cabling

#97

Post by LgWoodenBadger »

c0nsumer wrote: post #89
bityard wrote: post #45

Earlier quoted context omitted.

Yep. Direct-burial ethernet is surprisingly vulnerable to nearby lightning strikes. It's not a matter of IF the cable or devices get damaged, it's a matter of when. Nearby (not even direct) lightning induces ground voltage potentials between buildings to the tune of hundreds of volts or more.

Do you have experience or information on direct burial ethernet for something like a POE camera? I'd like to put one on the back fence to watch the back of the house and yard. Direct burial in the back yard would be a plenty easy thing to do, but the cable is pricey enough that I've held off for now.

Whatever you do make sure you put a fiber media converter between the “ethernet” cable and your network to prevent your entire network getting fried.

Re: If you get the chance, always run more extra network fiber cabling

#98

Post by aaronax »

hinkley wrote: post #84
jagged-chisel wrote: post #80

Earlier quoted context omitted.

If you’re using the planet as your “flat surface” then sure. If, however, you’re willing to deal with exiting the atmosphere at each end, you can use Real Straightness. But I don’t know anyone running a single segment for that distance.

I’m sure there are some microwave antennas still out there doing the Lord’s Work. At least in the Plains states where hills are low and putting antennas on two of them gives you some extra distance. How far do microwaves bend over the horizon?

Don't they generally do the opposite of bend over the horizon? Two towers that are observed (visible wavelength = tiny Fresnel zone) to have line-of-site can easily be obstructed (microwave = huge Fresnel zone).

https://en.wikipedia.org/wiki/Fresnel_zone

Re: If you get the chance, always run more extra network fiber cabling

#99

Post by quickthrowman »

cyptus wrote: post #10
msarrel wrote: post #4

Yup, always run extra everything. At least you can splice fiber now. And be careful of the minimum bend radius. Once, in the 90s, we were having intermittent network failures in our data center. I kept trying to troubleshoot it with the fluke, but the problem kept moving. When I pulled up the raised floor, I discovered that rats were eating the exterior sheath of the network cables. That was some fun troubleshooting!

_minimum_ bend?

It’s usually 20x the outer diameter of the cable for fiber, a cable with a .3 inch OD has a 6 inch minimum bend radius.
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