“Concatenation A mechanism for allocating very large amounts of bandwidth for transport of a payload associated with a ‘superrate service’, which is a service at a transmission rate greater than the normal maximum rate of OC-1. The set of bits in the payload is treated as a single entity, as opposed to being treated as separate bits or bytes or time slots. Therefore, the payload is accepted, multiplexed, switched, transported and delivered as a single, contiguous chunk of payload data.”