problem with web access to WLC

[adnanimarwane1]

Hi everyone,

I am working on 5508 cisco WLC, and I can not access WLC with SSH or GUI when I enable LAG,

when LAG is disabled, the GUI and SSH access works fine.

I am running the software version : 8.5.120.0.

thanks in advance

[patoberli]

Sounds like a misconfiguration on the switch side. You correctly configured the port-channel for the LAG function?

[adnanimarwane1]

Hi,

find below the configuration on the switch side :

interface Port-channel2
 switchport trunk encapsulation dot1q
 switchport mode trunk
 spanning-tree portfast trunk
end

SW#
SW#sh run int Gi1/0/10
Building configuration...

Current configuration : 126 bytes
!
interface GigabitEthernet1/0/10
 description vers_WLC
 switchport trunk encapsulation dot1q
 switchport mode trunk
end

SW#sh run int Gi1/0/12
Building configuration...

Current configuration : 161 bytes
!
interface GigabitEthernet1/0/12
 description vers_WLC
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 2 mode on
end

SW#sh run int Gi2/0/12
Building configuration...

Current configuration : 161 bytes
!
interface GigabitEthernet2/0/12
 description vers_WLC
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 2 mode on
end

SW#sh run int Gi2/0/10
Building configuration...

Current configuration : 161 bytes
!
interface GigabitEthernet2/0/10
 description vers_WLC
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 2 mode on
end

best regards

[ajc]

Configure them as indicated below:

Configuring Neighbor Devices to Support Link Aggregation

The controller’s neighbor devices must also be properly configured to support LAG.

• Each neighbor port to which the controller is connected should be configured as follows:

  
  interface GigabitEthernet <interface id>
  	switchport
  	channel-group <id> mode on
  	no shutdown
  

• The port channel on the neighbor switch should be configured as follows:

  
  interface port-channel <id>
  	switchport
  	switchport trunk encapsulation dot1q
  	switchport trunk allowed vlan <allowed vlans>
  	switchport mode trunk
  	no shutdown