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P4 pipeliners are fundamentally different from OpenFlow pipeliners. It can verify if the flow objective can be translated into a flow that is compatible with the pipeline. Once verified, it is almost certain the flow can be installed on the switch. The flow/group subsystem retry mechanism will take care of some rare cases where the flow/group doesn’t get in for the first time. Therefore, we only fail the objective if there is a translation error in the FabricPipeliner Change-Id: I868016c0859930fa15b9cdbacb6f72d8c3df307f