1G connection possible on 500-600 Meters of OM1 Multi-mode using Single Mode SFP 1000Base-LX and Mode Conditioning patch?

TLDR: I am looking for people's experience with getting long distance runs on OM1 using Single Mode SFP's and mode conditioning patch cables.

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So I picked up and abandoned project that I thought would be quick and easy, I made a couple assumptions, and that didn't go well. (Assuming the last guy knew what he was doing)

So, now that I have reassessed the situation and realized my assumptions were wrong.

I am left with 3-4 runs of OM1 that are well past the 275 Meter length for 1G.

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Equipment being used:

1. Unifi USW-Aggregation https://store.ui.com/collections/unifi-network-switching/products/unifi-switch-aggregation
2. Unifi US-8-150w https://store.ui.com/collections/unifi-network-switching/products/unifi-switch-8-150w

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So now I am going down the google \ reddit rabbit hole of making something work, with no possibility of changing out the cable runs anytime soon.

My thoughts so far:

1. 100Base-FX... (AFAIK My switches won't support 100Base-FX SFP's)
2. Media convertors (I am trying to avoid)
3. 1000Base-LX Single mode SFP's and Mode conditioning patch cables? (just found this today)

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So I am looking for feedback \ thoughts \ experience.

*I know this isn't ideal

• LC to SC OM1 Mode Conditioning Fiber Optic Patch Cable, 3m
  • https://www.fs.com/c/mode-conditioning-cables-384?lc-sc=9

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• 1000Base-Lx SFP’s?
• https://www.fs.com/products/11775.html
• https://www.fs.com/products/29849.html

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I know, I would search the model and will find the total interface cards by hardware, but, I need show this information by commands.

I don't speak English, by the way, sorry for the errors.

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The strange this is, is that the username & password we are sure that should work, are not working anymore. "Username or password invalid".

Never enabled SSH access on them, so that's not an option.
I don't dare to restart them, in case they will not boot anymore.

Is it possible that the on-board storage of those switches have died and that they are not working correctly anymore?

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Scenario:

I got a MPLS Router which is connected to our Nexus Switch. The Nexus is the Gateway for the MPLS Router. Our Firewall also is connected to our Nexus Switch.

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While perusing my firewall logs earlier, I found some traffic logs from an end-user device (iphone) -> 100.125.X.X which falls under the 100.64.0.0/10 reserved address space. It's my understanding that 100.64.0.0/10 is a reserved shared address space typically used in an ISP network and isn't publically routed, so I'm trying to understand why I might be seeing this traffic?

I wouldn't think much of it if I saw this inbound on wan. I would have just assumed something funky was happening ISP-side, but the fact that it is outbound from an iphone threw me for a loop.

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Moronic Monday!

It's Monday, you've not yet had coffee and the week ahead is gonna suck. Let's open the floor for a weekly Stupid Questions Thread, so we can all ask those questions we're too embarrassed to ask!

Post your question - stupid or otherwise - here to get an answer. Anyone can post a question and the community as a whole is invited and encouraged to provide an answer. Serious answers are not expected.

Note: This post is created at 01:00 UTC. It may not be Monday where you are in the world, no need to comment on it.