I have two ESXi 6 hosts. They each have dual 10GB NIC's. There are two cables connecting the servers together directly. (These NIC's are for vmotion and management stuff only.) I configured a vswitch with both NIC's as uplinks in teaming mode, and attached a vmkernel adapter to it.
I have two questions.
1) Am I getting any performance benefit from having the NIC's teamed? This question is specific to link aggregation following the 802.11ad standard, but it suggests that when there are only two hosts direct cabled like this, only one link will actually be used: https://unix.stackexchange.com/a/33723 (I don't not know how vmware's link aggregation works.)
2) Could this cause weird network issues? (Since each NIC in the team can only see one other NIC. Sender would have to know when addressing HOST1NIC1 send packet over HOST2NIC1, but when addressing HOST1NIC2 send packet over HOST2NIC2. I could imagine software assuming HOST1NIC1 is accessible from both HOST2NIC1 and HOST2NIC2 and vice versa.)