Mobility express controller become unreachable after changing switchport to trunk

[ejdrijin1]

Hi all,

I have a mobility express controller which it's switch port is an access port.

As soon as I change it to trunk, the controller will become unreachable.

What is the problem? I have another environment with the same APs and controller and they are all trunk ports.

Thanks.

[Rasika Nayanajith]

Did you check you configure ME controller management to tag vlan ? If management is on vlan X, then your trunk port native vlan should be anything other than vlan X

HTH

Rasika

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