Linked vcenter support for webclient plug-ins

Hi,

We have a plugin that works on 5.5 and 6.0 Vcenters. When we register the plugin on Vcenters in linked mode, it retrieves wrong data for the virtual machines. We noticed that it is because of same objectId for VM on the linked Vcenters. Is there any API to support retrieval of object id and vcenter id for a particular VM?

Are there any samples that I can refer for linked Vcenters on 6.0 and above?

Thanks

Aparna