191–200 of 250 posts
SMF optics are single digit dollars more expensive than MMF optics, if you use third-party modules. And you might as well use them because your SP does. In my experience they’re better built and more reliable (longer lasting and lower failure rate. n=1000s of modules) than first-party Cisco optics.
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!
Have fusion splicers come down in price? Can you recommend any?
https://www.amazon.com/dp/B0CW2HGVT2?ref_=ppx_hzsearch_conn_...
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Have fusion splicers come down in price? Can you recommend any?
You don't need them unless you are running a mile or two of fiber - mechanical fast connectors (IE no polish, etc) are less than 0.3db loss at this point. Fusion splicing will still be 0.01db or better, but you will be well within the power budget of any transceiver you find with mechanical connectors, if we are talking home networking - even a 2km 10gb transceiver that is 20 bucks has a 6db power budget. Heck, the 1…
1. High-level, the post is all wrong. The point should be that you always need to make sure you can pull new cable . The poster illustrates this: single mode, multi mode, non-fiber, etc, etc. And if one "goes bad", you still can't run a new one, unless you have a pullstring. 2. The post cannot apply to fast/large networks - will be prohibitively expensive. 3. If running a few at home, I suggest to run MTP/MPO. It's b…
> If running a few at home, I suggest to run ... that can have around 12 fibers in them, plenty of future expansion. What kind of home network needs 12 fibers on a single run!?
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…
What does that mean? I assume you are saying most builders don't offer fiber?
Running fiber in a house is entirely practical and easy to do. Cheap as well.
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I have, but now I have cable running along the base boards. That isn't optimal. Also I have 10G networking, so the ethernet switches are hot and expensive.
> Also I have 10G networking, so the ethernet switches are hot and expensive. I never understand why anyone needs anything faster than 1G (other than to flex for Internet points). Seriously, how often do you need to move data faster than 100MB/s? Almost never. FYI: A 2.5G switch should be fine. There are many fan-less options here: https://www.servethehome.com/the-ultimate-cheap-2-5gbe-switc...
i just upgraded my home network from 40g to 100g. g, not m. Anyone who does video knows the pain of 10g.
I subscribe to this philosophy. I recently had my house remodeled. A lot of the walls were opened up and I asked the contractor to run fiber and cat 6a everywhere. Now every room has multiple drops of each. Even the outdoor and garage have several drops. Bathrooms have ethernet. Attic, basement and storage room has multiple drops. I may have overdone it. But, I never wanted to every worry about this ever again.
Nice story. Why did you choose to drop both fiber and copper? My assumption: You can run 1/2.5G very cheap these days over copper. When 10G/25G gets much cheaper later, you can switch to fiber.
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Wireless will _never_ have the bandwidth nor wall-penetration people want. If it has the latter all the neighboring houses / apartment units will bleed through, and if it doesn't even the limited frequency domain won't be enough unless you're in the same room as an AP that doesn't penetrate walls... at which point everyone will want drops running to the rooms they stay in anyway. Yeah, conduits with pull strings and…
5-6GHz is good at covering a house without too much leakage. And with 9 separate channels that each run at a gigabit or higher, you can have very good neighbor avoidance. That seems fine to me for covering both bandwidth and wall-penetration needs. In a big apartment building you might have to use more narrow channels but I still think the overall picture for 5+6GHz is a good one. Especially because MIMO can squeeze…
In 5ghz there was only a clean 80mhz + 160mhz block ; while the 6ghz full WiFi 6E / 7 devices can use has 3x full 320mhz (low power only) blocks. However as a negative, a _vanishingly_ small number of OpenWRT devices support either of those standards https://openwrt.org/toh/views/toh_available_16128_wlan6.0ghz and worse chances are really good someone's phone / laptop probably doesn't either.
A second common problem is the wire installer pulling the fiber around sharp corners, sometimes with staples and zip ties. Fiber is surprisingly resilient, but very sharp bends will cause significant problems. Using armored fiber can help this a bit.
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Cost, and marginally, heat of the transceivers.
> heat of the transceivers I never heard this before, but I have no reason to doubt you. Are multi-mode or single-mode transceivers hotter, and why?