It took longer to get its "California" Unified Computing System out the door than networking giant Cisco Systems would have wanted, but in July the machines started shipping to customers. Welcome to the server business, where delays in chips and servers are the bane of your existence. Oddly enough, it wasn't Cisco that first …
Experience with NEXUS?
I wouldn't characterize the 5020 as an FCoE switch. They can be used without any FC at all. I'd be interested to hear from anyone using with FC or FCoE.
The ASR1000 line is a series of Cisco routers intended for WAN/Edge roles. The Nexus 1000V is their software switch which replaces the VMWare switch with a Cisco one.
Both good products, but totally different designs and intended roles.