To improve the implementation of the general intent implementaation based on R11, in R12, to fullfill the requirement of intent should be notify when the intent is not fullfilled, DCAE, Policy, So has to help on this. The scenario is still based on CCVPN. For people who buy the bandwidth assurance service, which is, when the maximum bandwidth is higher than the provision bandwidth, we will temporially adjust to a higher maximum bandwidth for them. But if they occupy the high maximum bandwidth for a long time, like for more than 2h, we will stop provide the bandwidth assurance service, and suggest them to order a higher provision bandwidth service instead. At this time, DCAE has to notify UUI that the bandwidth assurance service has stopped.