Ethernet passive optical network with report threshold calculations

An optical network unit (ONU) comprising:

• a first sub-queue configured to store a first set of elements that are each associated with a frame, wherein a sum of lengths of the frames associated with the first set of elements is limited to being less than or equal to a first threshold;
• a second sub-queue configured to store a second set of elements that are each associated with a frame, wherein a sum of lengths of the frames associated with the second set of elements is limited to being less than or equal to a second threshold;
• a first accumulator configured to increase a first count based on lengths of frames associated with elements added to the first sub-queue and decrease the first count based on lengths of frames associated with elements removed from the first sub-queue;
• and
• a second accumulator configured to increase a second count based on lengths of frames associated with elements added to the second sub-queue and decrease the second count based on lengths of frames associated with elements removed from the second sub-queue.