On the latency front, CoDel exists for consumer/edge routers. Backbones solve their latency concerns by always having excess bandwidth available. AFAIK, there

On the latency front, CoDel exists for consumer/edge routers. Backbones solve their latency concerns by always having excess bandwidth available. AFAIK, there has been no network queuing advancements that allow for link saturation without multiplicitive latency increases. My 12Mbit/768Kbit ADSL2+ connection has ~15ms latency when idle and ~35ms average (~55ms peak) during upload saturation because of CoDel & traffic-shaping. Without CoDel = ~650ms.