Cisco C2948G catalyst switch


I have inherited Cisco C2948G catalyst switch running Spanning tree mode RAPID-PVST+. Almost all ports have portinstancecost set (set spantree portinstancecost 2/x cost 19999 mst) I don't see any reson for this setup and I would like to delete it but can't. I'm getting error message "This command is not valid when STP is in PVST+ or RAPID-PVST+ mode." Can someone let me know how to remove these settings?


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John Strow
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