Wired Intelligent Edge

Hi All, i have a question about the new 'revision D' SFP's and their compatibility. So i understand that the C series are pre-EoL and they are to be replaced by revision D but i wanted to check that if I replace a switch and use the new rev D SFP (example J4858D) and the far end of the fibre connection is a rev C (J4858C) that there is no incompatibility issue there? I know it states on the EoL announcement that rev D are 'Backwards Compatoble' but it doesnt go into any detail about what this means. 

You are good to go. Rev D are essentially currently shipping versions.
We made the change to eliminate the possibility of using older versions of the Rev A, B, C parts on our newer switch families

Hello ED 

 

In a follow up J4858c is upgrade to J4858d?

do they work the same?

thanks

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@greco wrote: In a follow up J4858c is upgrade to J4858d? do they work the same?

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Where both revisions are supported, Yes they do.

 

For reference have a good read about "Revision D" on the HPE Aruba ArubaOS-Switch and ArubaOS-CX Transceiver Guide (Edition Part Number 5200-3362 (Published May 2020).

I realize that i didn't really address the original point (Roblowe14) 

two different implied questions: 

a) will the newer Revisions work in an older switch

b) will the newer Revisions connect to the older xcvr on the other end

 

YES, the technology of a Rev C or Rev D (or even Rev E) are the same. 

The newer Rev Xcvr will optically connect to an older xcvr of the same type;   J4858C over fiber will work with a J4858D. 

 

Thanks Davide for watching out for this topic. 

thank you

thank you ED

Ed, you're the best. Will came the time I'll listen your bass live? who knows...

thank You very much for your reply..