What is asymptotic bandwidth?

Some articles on asymptotic bandwidth, asymptotic, asymptotic bandwidths, bandwidths:

Bandwidth (computing) - Asymptotic Bandwidth
... The asymptotic bandwidth (formally asymptotic throughput) for a network is the measure of maximum throughput for a greedy source, for example when the message size (the number of packets per second from a source ... Asymptotic bandwidths are usually estimated by sending a number of very large messages through the network, measuring the end-to-end throughput ... As other bandwidths, the asymptotic bandwidth is measured in multiples of bits per second ...