Connecting FEX on Host interface

[Cisco Guardian]

I am planning to connect Cisco Nexus 9K to Nexus 2k. Instead of connecting the nexust 2K on fabric interface, can I use the host interfaces as uplinks to the Nexus 9k ? 

I want to understand if the host interfaces can used as an uplink?

Thanks

[Mark Malone]

Hi

Its bad practice to connect a switch to a fex in general not recommended  , you can but it will shut down you will need to disable stp bpdufilter first if you want to do it as its on by default on fex