Question about NSA 3600 SFP+ transceiver compatibility
I am currently running 2 x NSA 3600's in HA pair with X16 being SFP+ fiber interface. I am currently using SFP-10GSR-85 from fiberstore - a $20 part. I am using this same transceiver in all my Dell N3048P switches, including the one attached to the SonicWall. They seem to work fine for the most part, however I had to do some HA troubleshooting with the 3600's this week and noticed I had an issue where X16 would be green but would show as "No Link" in the management page and no activity on the switch side until I rebooted the SonicWall.
I came to find the SFP+ module compatibility matrix and saw that this part is not supported, so I would like to fix that by purchasing a supported SFP+ module.
Supported 10G SFP+ MMF modules for the NSA 3600 are:
- SonicWall 01-SSC-9785 10G Fiber MMF (850nm)
- Arista SFP-10G-SR 10G Fiber MMF (850nm)
- Arista SFP-10G-SRL 10G Fiber MMF (850nm)
- Avago AFBR-700SDZ 10G Fiber MMF (850nm)
- Dell FTLX8571D3BCL 10G Fiber MMF (850nm)
- Dell/Finisar OWTRD1 (FTLX8571D3BCL) 10G Fiber MMF (850nm)
- Finisar FTLX8571D3BCL 10G Fiber MMF (850nm)
- Luma SFP-10G-SR-LU 10G Fiber MMF (850nm)
In checking online, I see that a lot of times the exact brand of part is extremely expensive, but the "compatible" version is a lot cheaper and has the same part number (except usually suffix). For example, this CDW page shows the "Sonicwall 01-SSC-9785 SFP+ transceiver" is $1,295 but the "Axiom SonicWall 01-SSC-9785-AX Compatible SFP+ transceiver" is $193. Now does it truly matter that I get the Sonicwall one that is explicitly listed on the support matrix or am I ok to get the OEM brand that lists the same part number and claims to be compatible? And if so, can someone give me the actual technical reason why?