What will be the best solution and why to move 2/6509 (switces and firewalls connected) and 2/6500 (server farm) to Nexus: 2 Nexus 7000 boxes VDC core (switces and firewalls connected) - 2 Nexus 5000+6 2000 (server farm) or2 Nexus 7000 boxes VDC cor...