There is a bug which makes LACP related views inconsistent. Latest 5.5U1 vCenter is still affected
- Create a LAG interface (dvSwitch -> Settings -> LACP).
- Now open the "Migrate network traffic to LAGs" and enable lag1 interface as standby port (Manage Distributed Port Groups -> Teaming and failover -> select the port group).
- Let the process complete and reopen the same window.
- The lag1 interface is still marked as unused.
- If lag1 is deleted, an error occur (The resource 'lag1' is in use. Uplink or Link Aggregation group name lag1 is in use by the teaming policy defined at DVPortgroup dvpg-153.).
- Now edit settings on the involved port group (dvSwitch -> Distributed Port Groups -> right click on the port group), and select Teaming and failover.
- The lag1 interface is marked ad standby. Move it as unused and now the lag1 interface can be deleted.
Posted (with images) on http://www.routereflector.com/2014/07/vmware-bug-inconsistent-lacp-views/ also.