topic problem with web access to WLC in Wireless

problem with web access to WLC

adnanimarwane1 — Mon, 05 Jul 2021 15:46:25 GMT

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

Re: problem with web access to WLC

patoberli — Fri, 22 Jun 2018 12:28:08 GMT

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

Re: problem with web access to WLC

adnanimarwane1 — Fri, 22 Jun 2018 14:18:54 GMT

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

Re: problem with web access to WLC

ajc — Fri, 22 Jun 2018 19:11:59 GMT

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