We can use “nvme discover” to discover remote nvme normally，but we use “nvme connect”,its error.
we using linux command dmesg, get information
[ 5365309.262551] mlx5_cmd_check:810:(pid 923941): create_mkey(0x200) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x35e6ec)
nvme nvme1: failed to initialize pi mr pool sized 128 for qid 1
[5365309.262551] nvme nvme1: rdma connection establishment failed (-22)