ZFS Storage cluster Infiniband Card Devices name difference on same PCIe slot

Hello All

During the initial ZFS 7420 Storage cluster configuration, I found the Infiniband devices name difference.

 
ZFS7420 Cluster(each header have a 4 Infiniband Card)

1. Node-A

    configuration ->  network -> devices show below

    PCIe3 (IBP2/IBP3)

    PCIe4 (IBP4/IBP5)

    PCIe5 (IBP6/IBP7)

    PCIe6 (IBP0/IBP1)

 
2. Node-B

    configuration ->  network -> devices show below

    PCIe3(IBP4/IBP5)

    PCIe4(IBP0/IBP1)

    PCIe5(IBP2/IBP3)

    PCIe6(IBP6/IBP7)

 
As I know, When ZFS cluster failver, ZFS network interface resoure trans to same IBP name.
But Inspite of same slot, ibp device name is different as above.
So It's not easy to IPMP fail-over configuration & Cablings.