This read-only integer reports the length of the output packet queue for this interface, where the description states values longer than 2 indicate delays requiring investigation, though it also notes that in this NDIS-based implementation the value will always read 0. An admin, aware of that implementation note, would not rely on this particular counter to detect output queuing delays on this platform. For example, seeing cpqOsNetworkOutputQueueLength consistently return 0 here is expected behavior per the MIB's own description, not evidence of a queue-free interface.