Port channels are configured properly, but for unknown reason the etherchannel are not coming up

Configure the channel-group and enable that first.

You have the service ports showing UP? Also, run a show etherchannel load-balance and make sure it is setup for src-dst-ip. if not run this command port-channel load-balance src-dst-ip

Yup all service ports are up, i can even access the management GUI but without the etherchannel, once i add the ports to their respective channel-group they are all switching to disabled mode.

Make sure your not using port channels 1-13, use anything above 13 and they should come up, this is a bit of a gotcha with the WiSM.

E.g Port channel

interface Port-channel20

description ***PORT_CHANNEL_WiSM_1_WLC1***

switchport

switchport trunk encapsulation dot1q

switchport trunk native vlan #

switchport trunk allowed vlan #,#

switchport mode trunk

no ip address

!

interface Port-channel21

description ***PORT_CHANNEL_WiSM_1_WLC2***

switchport

switchport trunk encapsulation dot1q

switchport trunk native vlan #

switchport trunk allowed vlan #,#

switchport mode trunk

no ip address

Interface Example

interface GigabitEthernet2/8

description ***8Gbps_GEC to Switch 2***

switchport

switchport trunk encapsulation dot1q

switchport mode trunk

no ip address

channel-group 21 mode on

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If you want to get away from the port channel configuring of the WiSM, try these commands:

wism module controller 1 allowed-vlan

wism module controller 2 allowed-vlan

wism module controller 1 native-vlan

wism module controller 2 native-vlan

These statements are available on SXF5 and later, I think. I'm running 12.2(18)SXF9. (SUP720)

Here is a statement from the documentation:

Note: Software Release 12.2(18)SXF5 introduced new WiSM commands to use with auto-LAG ports (in the high 200 range). These commands can be used instead of steps 5 and 6 . Repeat the two commands for controller 1 and controller 2 in the WiSM module.

wism module controller 1 native-vlan 40

wism module controller 1 allowed-vlan native vlan id(40), vlan id1, vlan2

Hi Buddy, i configured port-channel 15 and 16 and the etherchannel are working fine now. the problem now is I am not able to connect to the WiSM management.

Have you setup your service port vlan? You can use it to check your management interface configurations or use the console port.

Example:

ip dhcp pool wism-service-port

network 192.168.0.0 255.255.255.248

default-router 192.168.0.1

wism service-vlan 192

interface Vlan192

ip address 192.168.0.1 255.255.255.248

end

Make sure the native Vlan for trunk on all 8 interfaces is the management VLAN tag, and make sure the management interface on the WiSM are untagged (0).

Hope this helps,