Port channel unassigned

[idratherbesurfing]

I have a portchannel that is not coming up. I shows unassigned. Here is the relevant port configuration and output of the status

Core-1#sh run int g9/21
!
interface GigabitEthernet9/21
description CHANNEL to Stack-1 G1/1/1
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-protocol lacp
channel-group 10 mode active
end

Core-1#sh run int g10/21
!
interface GigabitEthernet10/21
description CHANNEL to Stack-1 G1/1/2
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
channel-protocol lacp
channel-group 10 mode active

Core-1#sh run int po10
!
interface Port-channel10
description CHANNEL to Stack-1 G1/1/1 G1/1/2
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
end

Core-1#sh etherc sum
10 Po10(SD) LACP Gi9/21(I) Gi10/21(I)

Po10 CHANNEL to Stack-1 notconnect unassigne auto auto

[balaji.bandi]

As your Output

10 Po10(SD) LACP Gi9/21(I) Gi10/21(I)  - show as individual other side.

Can you post other side config also model of both the switches ? and Version running.

[idratherbesurfing]

I suppose I was having a momentary lapse of reason. I failed to complete configuration on the other side. -1 for multitasking, the human brain can only focus on one thing at a time.

[luis_cordova]

Hi @idratherbesurfing ,

Maybe this link can give some help:

https://networklessons.com/switching/troubleshooting-etherchannel

Regards

[paul driver · Accepted solution]

Hello

Remove the channel-protocol feature and recreate the port-channel using just channel-group x mode x and test again, also make sure the other side of  the etherhannel is compatible