Twinax cable on Catalyst 3750-24PS

[ElQueue]

Sooooo... I did some research last week and saw from multiple sources that a twinax 10G SFP+ cable would work in a 1G SFP port at 1G speeds, but the reverse was not always true. Sounded good to me, as I only have SFP ports!

So I bought a 5m Twinax transceiver cable, received it today, and plugged it into my 3750... err-disabled...

I then found an article on the Cisco site that said all I had to do was unplug it, turn off the detection with "no errdisable detect cause gbic-invalid" and then turn on third party support with "service unsupported-transceiver".

It's not err-disabled anymore, but I still get that it's unsupported. I need to know if this is due to bad cable or bad information. Any help would be appreciated.

[Reza Sharifi]

It may be a cable as not all vendor's cables and SFPs always work with Cisco products.

HTH

[ElQueue]

It's these cables. Supposedly they're compatible.

https://smile.amazon.com/gp/product/B07575ZV1H/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

[Reza Sharifi]

What I have noticed is that most vendor's cables work with Nexus series but not so much with older Catalyst models. You may want to try a cable from this site. 

https://www.fs.com/

HTH 

[ElQueue]

Thanks for that. I'll try returning the cable to Amazon and get one on FS.com, which is actually one of the sites that purported that the SFP+ 10G cable would work on a SFP port anyway. My question is now, which of the 2 models is more compatible with Catalyst switches: the SFP-H10GB-CU5M or ONS-SC+10G-CU5?

I don't mind spending a couple extra dollars for better equipment.