I am planning on expanding a current stack of 2x WS-C3850-24XU-L with a 1x WS-C3850-12XS-S and 2x WS-C3850-24T-L.
I've read through the stacking guides and it says:
".. all switches in one stack must have the same version of IOS XE and the same feature set license. A
mixed stack of LAN base switches with IP base or IP services is not supported.
Since the 12XS-S is not available in LAN Base version (-L) how can I make this work. I've read something about downgrading from IP Base to LAN Base with
license boot level lanbase
Can anyone confirm this stacking will work if I use the above command on 12XS-S?
Feature set will need to changed as you know, you should be able to check license availability
on each switch:
show license all switch xx
I understand that license levels can be upgraded, say from LAN Base to IP Base, however I cannot find any useful info on the web for downgrades.
I don't need IP base features and I already have 2x 3850-24XU-L stacked as mentioned. The problem I have is that optical switches in 3850 series do not come in LAN Base.
I again went through data sheet and found this ...
"The 12-port and 24-port SFP+- and SFP-based models as well as the 48-port SFP+ model can only be ordered with IP Base or IP Services licenses. Therefore, in order to stack with LAN Base models, they need to be configured in LAN Base mode from the CLI."
Has anyone tried the downgrade to LAN base on 3850-12S-S or 3850-12XS-S switch and stack with other -L switches?
I guess the above command will do the job. Can anyone confirm?
Have a look at the attached link - RTU activation seems to be the way to go