3750 Port-Chanel with C2960S FlexStack i have problem config

[ruksomzaa]

I have two 3750 as core switch (no Stack)  and two C2960S FlexStack , I config Etherchanel between 3750 (both Po6) and C2960S (Po1,Po2), I use protocol lacp 

I "Show Etherchanel Sum"

C2960S 

Po1                  Gi1/0/25 (P),Gi1/0/26 (D)

Po2                  Gi2/0/49 (P),Gi2/0/50 (D)

3750 (Swtich1)

Po6                 Gi1/0/9 (P),Gi1/0/10 (D)

3750 (Switch2)

Po6                 Gi1/0/9 (P),Gi1/0/10 (D)

in show command can use 1 port and down 1 port 

can help me ?

regards

myfeel

[michael o'nan]

Post the config of each interface and also the config of your port channel

[ruksomzaa]

Hi Micahel

3750 (Switch1) config interface

interface Port-channel6
 switchport trunk encapsulation dot1q
 switchport mode trunk

!

interface GigabitEthernet1/0/9
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-protocol lacp
 channel-group 6 mode active
!
interface GigabitEthernet1/0/10
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-protocol lacp
 channel-group 6 mode active

----------------------------------------------------------------------------------------------------------------------------------

3750 (Switch2) config interface

interface Port-channel6
 switchport trunk encapsulation dot1q
 switchport mode trunk

!

interface GigabitEthernet1/0/9
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-protocol lacp
 channel-group 6 mode active
!
interface GigabitEthernet1/0/10
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-protocol lacp
 channel-group 6 mode active

---------------------------------------------------------------------------------------------------------------------------------

c2960S config interface

interface Port-channel1
 switchport mode trunk
!
interface Port-channel2
 switchport mode trunk

!

interface GigabitEthernet1/0/25
 switchport mode trunk
 channel-protocol lacp
 channel-group 1 mode passive
!
interface GigabitEthernet1/0/26
 switchport mode trunk
 channel-protocol lacp
 channel-group 1 mode passive

interface GigabitEthernet2/0/49
 switchport mode trunk
 channel-protocol lacp
 channel-group 2 mode passive
!
interface GigabitEthernet2/0/50
 switchport mode trunk
 channel-protocol lacp
 channel-group 2 mode passive

[michael o'nan]

Try removing channel-protocol lacp from your interface configs and see if that helps.