how to change vnet id on guest ldom (3.6)

Hi all

I must to move zone from an old system to a new one.

I recreate ldom guest on the new server. I export/import dataset/ I create zone config files and transfer them on new server.

But I net device are not with the same organization and numerotation. I would like to create the same vnet on my new ldom that on the old one.

I try to use vid parameter but without the good result.

On control domain :

ldm add-vsw net-dev=net3 vsw-prod primary

ldm add-vnet vnet6 vid=6 vsw-prod LDOMGuest

but on LDOMGuest, ifconfig present vnet on an other order.