Symptom

Power off/on or reload device we can see below error output . ------- %LINK-3-UPDOWN: Interface GigabitEthernet7/0/23, changed state to up %LINK-3-UPDOWN: Interface GigabitEthernet6/0/23, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet7/0/23, changed state to up %LINK-3-UPDOWN: Interface Port-channelx, changed state to up %ETC-5-CANNOT_BUNDLE2: Gi6/0/23 is not compatible with Gi7/0/23 and will be suspended (trunk mode of Gi6/0/23 is access, Gi7/0/23 is trunk) %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet6/0/23, changed state to up -------

Conditions

1.switchport mode dynamic desirable 2.two port on different LC

Workaround

use switchport mode trunk

Further Problem Description