Moving pve cluster to a new switch

I have a cluster in production that I need to move to a new switch. We are using MCLAG redundant interfaces and need to move 6 nodes from on switch cluster to the other. That should not take long but I was wondering if I should execute on each node pvecm expected -1 before I do that, any advice ?

Also once executed pvecm expected -1 , how to disable/negate that command so the node does not expect to be -1.

Thank you