Create LACP on Fortigate V7.0.5 and Cisco Switch is not working

Hi,

I would like to set up my network with LACP protocol between fortigate and cisco switch. My config as below:

Fortigate:
command: show system interface
result (For my LACP interface):
edit "GNET"
set vdom "root"
set ip 20.2.20.1 255.255.255.0
set allowaccess ping
set type aggregate
set member "port2" "port3"
set device-identification enable
set lldp-transmission enable
set role lan
set snmp-index 9
set auto-auth-extension-device enable
next
edit "V221"
set vdom "root"
set ip 20.1.21.1 255.255.255.0
set allowaccess ping
set device-identification enable
set role lan
set snmp-index 10
set auto-auth-extension-device enable
set interface "GNET"
set vlanid 221
next
end

commend: diagnose netlink aggregate list

result:
List of 802.3ad link aggregation interfaces:
1 name fortilink status down algorithm L4 lacp-mode active
2 name GNET status down algorithm L4 lacp-mode active

Cisco:
commend: sh run (Copied some interfaces only here)

result:

interface Port-channel1
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet0/0
switchport trunk encapsulation dot1q
switchport mode trunk
media-type rj45
negotiation auto
channel-group 1 mode active
!
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
media-type rj45
negotiation auto
channel-group 1 mode active

commend: sh int statu

result:
Gi0/0 connected trunk auto auto unknown
Gi0/1 connected trunk auto auto unknown
Po1 notconnect 1 auto auto

On fotigate the interface is down and cisco there is always message "%EC-5-L3DONTBNDL2: Gi0/1 suspended: LACP currently not enabled on the remote port." comes up.

Could anyone please help me what wrong on my configuration? Or what should I do to solve this issue?

Thanks