I trying to connect my Mellonox Connect-x Pro to a Arista [Arista 7050TX-72Q 40 Gbps port. I see card is good and connect at 10gbps. I appears the switch is breaking the port into 4x 10gbps connections. How do I change that to a single 40gbps connection.
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Hmm, I haven’t worked on a Arista stuff before, but looking at the documentation these commands might help:
Check for port-groups via
show hardware port-group
This should list something like this, the key here is to get what ID number is being used
Portgroup: 1 Active Ports: Et17-20
Port State
------------------------------------------
Ethernet17 Active
Ethernet18 Active
Ethernet19 Active
Ethernet20 Active
Ethernet15/1 ErrDisabled
Ethernet15/2 ErrDisabled
Ethernet15/3 ErrDisabled
Ethernet15/4 ErrDisabled
Once you get the port-group ID, using this command (in configure mode) should restore it back to a 40G port:
default hardware port-group 1 (or whatever the number is)
You should also be able to find the port-group command in the running-config
show running-config
Hope this helps.