Eloqua - DMP (BLUEKAI)

There has been a lot of useful documentation, but unable to find the following:  When a CDO is updated in Eloqua, can we push that information to BlueKai? If so, how long does it take? As the documentation reads, seems that an email click, open, form submit or some sort of activity needs to occur for the swapping to occur.  Understanding there is an initial ID swapping that happens when you integrate Eloqua and BlueKai, but trying to understand how updates/information is pushed from Eloqua --> Bluekai, and if we add contacts to a segment through a campaign canvas, if