Here is how you enable use of third party or unsupported transceivers such as SFP / SFP+ fiber optics on e.g., Juniper's JunOS and Cisco IOS.

Juniper:

set chassis allow-other-transceivers

Cisco:

service unsupported-transceiver

HP/Aruba:

allow-unsupported-transceiver

Dell:

allow unsupported-transceiver

Arista:

Arista Networks EOS shell

[admin@localhost ~]$ touch /mnt/flash/enable3px
[admin@localhost ~]$ sudo reboot

This is something seasoned network engineers know about, but there's no reason why this should be kept secret.

I will add more when I learn of them.

Last Updated 2024-01-04