Arista 7050QX-32 (none S) transceiver compatibility

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icabraja

New Member
Jan 25, 2026
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Good morning every one!

We are thinking of buying a couple of these switches for five node CEPH cluster. Since we would like to scatter nodes throughout the building we need single mode fiber transceivers with duplex LC connectors in order to use existing fiber network. Finding Arista branded transceivers is proving difficult. On this link I have found a list of mentioned transceivers from Finisar that could be compatible which I have found on ebay for really low price. Can someone confirm do they work out of the box, or I have to obtain a license or use a txt file trick to enable 3th party transceivers? If we install SONiC OS, do we solve transceiver compatibility with it?

Thank you very much for you input!
 
Foray

Foray

Member
May 22, 2016
88
42
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If you search for "service unsupported-transceiver" on this forum you may find the command to unlock 3rd party transceivers.

EOS support is only up to 4.18.11 on these switches. This info and software also can be found with a simple search on this forum.

Maybe just use search instead of opening a new thread.
 
A

ano

Well-Known Member
Nov 7, 2022
775
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icabraja said:
Good morning every one!

We are thinking of buying a couple of these switches for five node CEPH cluster. Since we would like to scatter nodes throughout the building we need single mode fiber transceivers with duplex LC connectors in order to use existing fiber network. Finding Arista branded transceivers is proving difficult. On this link I have found a list of mentioned transceivers from Finisar that could be compatible which I have found on ebay for really low price. Can someone confirm do they work out of the box, or I have to obtain a license or use a txt file trick to enable 3th party transceivers? If we install SONiC OS, do we solve transceiver compatibility with it?

Thank you very much for you input!
Click to expand...
the S model uses drasticly less power (we use them for ceph) so much we could buy S models, and replace them and save the cost on power within a pretty short time like 1-2? years

going around and getting 3rd party receivers active is trivial

with that said, old arista original transceivers are also dirt cheap

I would keep the arista os on them unless going full l3 ceph ipv6 yolo
 
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