Please advise on how I should setup the fibre ports ( one for receiving vlans and the other for forwarding to a c2960).

I am face with an issue where I cold not add a port to a dynamic vlan.The specific error is :Dynamic VLAN cannot be modified.The error log is below:Error codes from RAM2147483422 2010-Apr-28 14:37:06 Informational %VLAN-I-GVRPDelVlan: Dynamic VLAN V...