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About jsathaseevan
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Aug 6 2021
9:30 AM
So I have Startech and Tripplite SFP+ modules. They both worked (mixed) in my 1st link from server room in main building to my IT office. 10GB no problem. The configuration is as such: Meraki MS220 switch -> StarTech SFP+ module -->--> Tripplite SFP+ module -> Netgear ProSafe Switch When the two new buildings went up and fiber was run to them, I bought 2 each of the same StarTech and Tripplite modules. Those did work to get another building up. They did not work to get the 3rd building connected. 3rd building is currently using copper until I can figure it out. My inventorying is bad. But I think I've found a spare switch to try. I"ll be able to try this on Thursday when back
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Aug 6 2021
8:40 AM
HI Robin, I've attempted this without any luck. I have SC connectors between for the fiber patch panels of the buildings. I use an SC-LC jumper to connect from patch panel to switch. I can easily switch the polarity without taking apart my cables. I ensured that I can see light coming from one side and made sure that the light going back is on the "dark" side. switching it back and forth has no effect for me. One thing I failed to mention: The fiber going between each building happens to be a 3 pair fiber cable. I have tried all 3 pairs to send my signal across. Indeed I see light on all three pairs. I'm beginning to thing there's something wrong with the switch itself. It has two fiber ports. Neither lit up my connection, though BOTH sent light down the fiber jumper cable. I'm going to have to bite the bullet and replace that switch.
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Aug 5 2021
11:59 AM
Hey Robin, I have not resolved this. My scenario is similar to yours. I have one main building and 3 outer buildings. Fiber was run from main building to: - IT trailer - a mechanics shop - a purchasing trailer I now have 2/3 buildings running on fiber, with the last having to use copper @ 100Mbps because we can't get the fiber running. I've moved the SFP+ modules around after hours on working links and confirmed that the modules are fine. I've called the fiber install to come in and they've stated that the fiber is fine. I can only assume I have a busted switch. I've gone into the switch's control panel and confirmed that the fiber ports are enabled. My dashboard however does NOT see any of my SFP+ modules. I believe that I will need Meraki modules instead of the Startech ones I'm using to see the modules. I might just have to do that in order to continue troubleshooting. I get NO link at all. I do not get reduced functionality
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Aug 5 2021
11:53 AM
So I did this as well. I actually didn't use the down switch, but instead used a Meraki MS-120 to test and a 12ft fiber patch. It wouldn't light up either, but I was told that that was due to the fact that the MS120's don't support SFP+. I'm going to be forced order two Meraki SFP modules to do any more troubleshooting it seems.
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Aug 5 2021
11:50 AM
Hey Bruce, They did not provide a report. But they did charge me $400 to come back in and test the line! I will request it...though I don't know how to read it....maybe the community can help me make sense of it. Thanks
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Jul 21 2021
12:22 PM
Thank you for your reply. The fiber run is OM3, multimode, <100m. I have a copper run that is currently allowing the building to have Internet access.
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Jul 21 2021
12:20 PM
Thank you for your reply. No link light. Indeed I switched the send/receive fibers around. I ensured there was light passing through the entire drop and patch cables...and that the lights did not collide.
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Jul 21 2021
12:19 PM
Thanks for that. Simplest thing I haven't tried yet. I swapped the switch...the working switch from my building went into the new building. STILL NO JOY! I'm thinking there is simply an issue with the cabling and I will have to find another vendor to come out and check the issue
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Jul 19 2021
12:14 PM
I have an MS225-48 and an MS225-48FP stacked. They are working great. They have replaced 3 x Netgear S3300-28X switches that we used in our main closet. These three switches have now been moved to 3 new buildings. Everything works great over copper and 1GB. We had a vendor come in and run us some fiber so we could make use of the 10GB connections on both sets of switches. For the building I'm occupying, I've used 2 x Tripp-Lite N286-10G-SR-S 10GB SFP+ on both my end, and the Meraki end in the main building. Works GREAT. Meraki dashboard tells me everything is A-OK and connected at 10GB Full duplex. Netgear switch tells me the same. The next building, same configuration, will not give me a connection (except over copper). Same part numbers. I've had the vendor come back and test the lines (I can see light as well), and I've even removed the very SFP+ modules connecting my building to try and connect the new building. Nothing. I've switched out the patch cables, also using the ones from the working configuration. I'm at a loss for words. Meraki support has informed me that as the SFP+ modules aren't their nor are the switches on the other end, they can troubleshoot no further. Any ideas?
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