>
> Sergei, what does the command "ibv_devinfo" return please?
>
> I had a recent case like this, but on Qlogic hardware.
> Sorry if I am mixing things up.
>
>
An output of ibv_devinfo from cluster's 1st node is:
$ ibv_devinfo -d mlx4_0
hca_id: mlx4_0
transport: InfiniBand (0)
fw_ver: 2.35.5100
node_guid: 7cfe:9003:00bd:dec0
sys_image_guid: 7cfe:9003:00bd:dec3
vendor_id: 0x02c9
vendor_part_id: 4099
hw_ver: 0x0
board_id: MT_1100120019
phys_port_cnt: 1
port: 1
state: PORT_ACTIVE (4)
max_mtu: 4096 (5)
active_mtu: 4096 (5)
sm_lid: 3
port_lid: 3
port_lmc: 0x00
link_layer: InfiniBand
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