Arista 7050s52 with sfp to rj45 third party transceiver settings

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Hi,

I'm trying to setup my Atista 7050s52 but failing somewhere.

I gave an ip to the managemrnt console and can ssh into it.

I'd like to connect it to say port 48 to get it reachable from other port(s).
OR
to setup vlan interface(s) with ip to make the switch reachable from those ports.

Now, I'm using a couple of sfp to rj45 tranceivers (1000baseT) in the switch's sfp+ ports. The ports' leds are yellow when I put the tranceiver in.

All that said, it seems I can't set a port with the transceiver to a vlan, the commads seem to work but the port remains in "no vlan" state.

Is the transceiver the problem? Is something else I'm probably missing?

Thank you.