Cisco Nexus 5000 and 2000 connected to a Nexus 1000v on 2 Dell 1000m chassis. Upgrade from 1 6509 to a second 6509 with VSS that connects to the Nexus 5000. We moved all production equipment over a weekend. We had everything back online in less than 48 hours. We transformed the worst cabling and cheapest cabinets I have ever encountered into a layout that is one of the cleanest cabling and cabinets that I have ever seen. It was a rare opportunity to move the all our production equipment at the same time. Most companies our size would not have taken such a big risk.