Bing is a point-to-point bandwidth measurement tool (hence the 'b'), based on ping. Bing determines the real (raw, as opposed to available or average) throughput on a link by measuring ICMP echo requests roundtrip times for different packet sizes for each end of the link.

WWW: https://web.archive.org/web/20050901062003/http://www.freenix.fr/freenix/logiciels/bing.html
