Using Cisco Cat-3650 as the Access-lyr device and Nexus as Aggregation

[Imran Ahmad]

Hello guys,

We are planning for a DCI. Currently we have cisco 3650 switches availble.  For DCI i am planning to order new Nexus 7000 series 

my quation is - is it possible to use my existing cisco cat 3650 in the Access-Lyr and use the Nexus 7k in the Aggregation Lyr?

Also What is the deffence using Nexus 2000 and or Cat switches as the access lyr lyr devices when using Nexus 7k in the aggr lyr?

thanks