101–110 of 196 posts
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For high speed home stuff, I usually pick up some old Mellanox infiniband cards and cables. They're usually dirt cheap and insanely quick. Difficult to work with if you do not know what your are doing.
OMG, mlx fw upgrades. I'm so happy my current employer chose sfc :)
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did you try to disable autonegotiation and force speed ? i think i had to do it a couple of times with copper
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.
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Cisco etc have truly insane pricing on optics, like $1000 for something generic that cost $20-50 from fs.com etc. The only difference is how it presents itself to the switch (ie, says its a Cisco optic), not actual difference in performance. Often Cisco/etc will refuse support cases if you aren't using their optics, if the switches/routers even work with them in the first case, which isn't a given as often they'll re…
> Often Cisco/etc will refuse support cases if you aren't using their optics, if the switches/routers even work with them in the first case, which isn't a given as often they'll refuse to work with non branded optics. As others here have pointed out, Cisco reserves the right to do this but doesn't do it in practice. They don't even have a realistic chance to _detect_ a Cisco-programmed FS SFP, since it simply identif…
I have zero doubt they will. But also you prove nothing and are doing yourself and the vendor a disservice if you fake it. There’s no telling what your 3rd party transceiver is doing incorrectly. Better to get one single supported sfp and get that fixed which will probably fix your other issue too.
FS is so big they’re probably fine. Another option is to get one supported sfp, find if it’s encoded to an oem part, then buy and install the oem part directly. Easy to twist the arm of your var to do this.
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> Often Cisco/etc will refuse support cases if you aren't using their optics, if the switches/routers even work with them in the first case, which isn't a given as often they'll refuse to work with non branded optics. As others here have pointed out, Cisco reserves the right to do this but doesn't do it in practice. They don't even have a realistic chance to _detect_ a Cisco-programmed FS SFP, since it simply identif…
> If your case was directly related to the SFP (“I can't get a link on this fiber port”), then yes, they could probably refuse it. I have zero doubt they will. But also you prove nothing and are doing yourself and the vendor a disservice if you fake it. There’s no telling what your 3rd party transceiver is doing incorrectly. Better to get one single supported sfp and get that fixed which will probably fix your other…
If I report an IS-IS problem and the root cause is an OEM SFP on a completely unrelated port, then the design of the switch is pretty awful. :-)
This is not for me as I'm not a professional network engineer, but I do want to say that Ubiquiti has made home networking SO fun for me. Everything truly "Just Works." My setup is definitely more on the prosumer side, but it's been so build out and inspect my network with their tools.
Do you think it'd be worth upgrading over TP Link Omada hardware?
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I wish I could say that Unifi has just worked for me, but any time I add a new Unifi device to the network (say a new switch, or just recently a U6 range extender), my network gets incredibly unstable until I manually restart every UniFi device on the network, sometimes multiple times. (i.e. Some devices won't connect to WiFi due to DHCP IP configuration errors.) And that's after getting the device adopted, which gen…
I just wanted to chime in and say that this hasn't been my experience. It sounds like you have some other sort of problem if it takes multiple attempts to adopt.
For those outside the IT/networking realms, SFP use uniform connectors for both the networking device and the fiber cable, but the major vendors (Cisco and friends) have used firmware flags and settings to provide vendor lock-in for at least the last 15 years. It used to be that in the event of a major outage or hardware failure you would need to issue additional debug commands to the effect of "I know this isn't you…
This is not for me as I'm not a professional network engineer, but I do want to say that Ubiquiti has made home networking SO fun for me. Everything truly "Just Works." My setup is definitely more on the prosumer side, but it's been so build out and inspect my network with their tools.
Earlier quoted context omitted.
did you try to disable autonegotiation and force speed ? i think i had to do it a couple of times with copper
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.
Oh come on!