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Funnily enough, this 10gtek worked on one of my 3 switches, but I could only establish a gigabit connection. I returned it [1] These 10gtek fiber modules on th

by donatj 1y ago

Funnily enough, this 10gtek worked on one of my 3 switches, but I could only establish a gigabit connection. I returned it [1] These 10gtek fiber modules on the other hand have worked flawlessly so far. [2] This Mikrotik module would not establish a 10 gb link with my Thunderbolt dock no matter what I tried. Works fine with my servers though so I swapped it out. I've pretty much resigned myself to just buying the full brand Ubiqitui SFP+ adapters [4] for converting to copper. I recently purchased [5] to run to my living room, but I have not found the time/energy to do the run. 1. https://www.amazon.com/dp/B01KFBFL16 https://www.amazon.com/dp/B01KFBFL16 2. https://www.amazon.com/dp/B08BP4M8LV https://www.amazon.com/dp/B08BP4M8LV 3. https://www.amazon.com/dp/B078SNK1MY https://www.amazon.com/dp/B078SNK1MY 4. https://store.ui.com/us/en/category/accessories-modules-fiber/collections/accessories-pro-direct-attach-cables/products/uacc-cm-rj45-mg https://store.ui.com/us/en/category/accessories-modules-fibe... 5. https://www.amazon.com/dp/B0CYC6P6KF https://www.amazon.com/dp/B0CYC6P6KF

booi 1y ago
I tried converting everything to copper as well but the copper DACs use a lot of power and ended up not working out due to the greatly increased power usage (mostly because the networking "closet" wasn't really designed for it). So beware if you're moving it to copper
tguvot 1y ago
did you try to disable autonegotiation and force speed ? i think i had to do it a couple of times with copper
- donatj 1y ago
  Yep. I actually had to do that to get the Ubiqiti one to work. It just did not work when I tried that with the Mikrotik adapter.
  - tguvot 1y ago
    btw, if you are using 10gbe copper modules, take a look at their temperature. some of mine were getting to 92C i think. had to put a bunch of heatsinks on them
    - LtdJorge 1y ago
      I put a couple of Noctua NF-14 over the top ventilation holes in my rack, with the silicone mounting thingies and the NA-FC1 PWM controller. They are almost silent in winter. The switch with 10Gb copper is under the fans.
      - tguvot 1y ago
        i opened switch and put noctua inside to cool sfp cage that i added heatsink to, in addition to heatsinks on sfp+ module itself. it dropped temperature from 92c to 75c. year later i replaced it with fiber run.
  - chopsuei3 1y ago
    Make sure you also pay attention to the distance rating of the SFP. I had a very similar experience with modules not working at the right speed sometimes. Turned out I was running 50 meters of cable over a 30 meter SFP. Got the correct one, and as low wattage rating as possible and it's been rock solid ever since.

by donatj 1y ago

booi 1y ago

I tried converting everything to copper as well but the copper DACs use a lot of power and ended up not working out due to the greatly increased power usage (mostly because the networking "closet" wasn't really designed for it). So beware if you're moving it to copper

tguvot 1y ago

did you try to disable autonegotiation and force speed ? i think i had to do it a couple of times with copper

donatj 1y ago
Yep. I actually had to do that to get the Ubiqiti one to work. It just did not work when I tried that with the Mikrotik adapter.
- tguvot 1y ago
  btw, if you are using 10gbe copper modules, take a look at their temperature. some of mine were getting to 92C i think. had to put a bunch of heatsinks on them
  - LtdJorge 1y ago
    I put a couple of Noctua NF-14 over the top ventilation holes in my rack, with the silicone mounting thingies and the NA-FC1 PWM controller. They are almost silent in winter. The switch with 10Gb copper is under the fans.
    - tguvot 1y ago
      i opened switch and put noctua inside to cool sfp cage that i added heatsink to, in addition to heatsinks on sfp+ module itself. it dropped temperature from 92c to 75c. year later i replaced it with fiber run.
- chopsuei3 1y ago
  Make sure you also pay attention to the distance rating of the SFP. I had a very similar experience with modules not working at the right speed sometimes. Turned out I was running 50 meters of cable over a 30 meter SFP. Got the correct one, and as low wattage rating as possible and it's been rock solid ever since.