Hi
I had a DL380 with two two port eth cards. I now replaced one with a four port eth card and my interfaces seemed to have jumped around.
Is there a method of moving eth ports... eg making port eth4 eth2.
You can put stuff in modules.conf to force a particular order on the interfaces, but I understand it's not altogether deterministic if they are all the same model. The driver you use might also have options which influence which instance comes up on which interface number. Read its documentation.
You can also solve this with udev for networking or other hardware profiles/rules.