 In particular, MPLS dispenses with the cell-switching and signaling-protocol baggage of ATM.MPLS recognizes that small ATM cells are not needed in the core of modern networks, since modern optical networks are so fast (, at 200 Gbit/s and beyond) that even full-length 1500 byte packets do not incur significant real-time queuing delays (the need to reduce such delays — "e.g.