Hi,
Yes, I have a portchannel.
At Controller
interface port-channel 1
add gigabitethernet 1/0
trusted
trusted vlan 1-4094
switchport mode trunk
At Cisco.
interface Port-channel20
description ## CONTROLLER_ARUBA_WIRELESS ##
switchport
switchport trunk encapsulation dot1q
--More-- switchport trunk allowed vlan 1-35,37-4094
switchport mode trunk
speed 1000
duplex full
spanning-tree bpduguard disable
spanning-tree guard root