Yes, that sounds right. It's been a long time since I've worked in a data centre, but if I remember correctly, we had a whole separate set of switches just for the management network (I think we put ME and HP iLO on that network. We didn't have any iDRAC/Dell). They had their own IP ranges and the networking guy used jump boxes (I think he had two for redundancy) if he needed to get to the management network. I want to say the ME adapters were red and the iLO ones were green? .. they're usually a different color than the primary NIC. We also had separate storage networks that weren't shared with anything either. The main network had vLAN tagging for data, VoIP and some other crap.