LAG WLC Sw

[Leonardo Santana]

Hi,

We have two 3504 controllers in HA and i have a doubt about the LAG config at switch side, the controllers will be using the same channel group right?

AIR-CT3504-K9
8.10.130.0

SWITCH CONFIG

interface Port-channelX
description WLC-3504
switchport trunk allowed vlan X,X,X
switchport mode trunk
switchport nonegotiate
logging event trunk-status
logging event bundle-status

interface GigabitEthernetX
description WLC-3504
switchport trunk allowed vlan X,X,X
switchport mode trunk
switchport nonegotiate
logging event trunk-status
logging event bundle-status
load-interval 30
duplex full
channel-group X mode on
spanning-tree portfast trunk
spanning-tree bpduguard enable

interface GigabitEthernetX
description WLC-3504
switchport trunk allowed vlan X,X,X
switchport mode trunk
switchport nonegotiate
logging event trunk-status
logging event bundle-status
load-interval 30
duplex full
channel-group X mode on
spanning-tree portfast trunk
spanning-tree bpduguard enable

interface GigabitEthernetX
description WLC-3504
switchport trunk allowed vlan X,X,X
switchport mode trunk
switchport nonegotiate
logging event trunk-status
logging event bundle-status
load-interval 30
duplex full
channel-group X mode on
spanning-tree portfast trunk
spanning-tree bpduguard enable

[Mark Elsen]

 - No they don't , you need a separate network connection  for each (in essence)

 M.

[Leonardo Santana]

Hi,

So it would be one channel for each controller?

[Mark Elsen · Accepted solution]

 - It would be better to check the documentation first and then configure everything accordingly : https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-7/High_Availability_DG.html

 M.

[Rich R]

So it would be one channel for each controller? YES