System for aggregating statistics relating to a logical forwarding element

A host computer comprising:

• a set of processing units for executing instructions;
• a non-transitory machine storing a program for reporting statistics associated with processing packet flows for one or more logical forwarding elements that a particular physical forwarding element executing on the host computer implements with other physical forwarding elements executing on other host computers, the program comprising sets of instructions for, the one or more logical forwarding elements comprising a first logical forwarding element associated with a plurality of physical forwarding element:
• storing flow entries for matching to packets of the packet flows processed by the particular physical forwarding element and storing a tag for each particular flow entry to associate each particular flow entry with one of the one or more the logical forwarding elements, the flow entries comprising a first flow entries associated with the first logical forwarding element and the plurality of physical forwarding element;
• collecting a set of one or more statistics for each particular flow entry based on the packets of the processed flows that match the particular flow entry;
• and
• exporting, to an external aggregator, the collected set of statistics for each particular flow entry along with the tag in order to associate the collected set of statistics of each particular flow entry with the at least one of the one or more logical forwarding elements.