Wikipeida describes Net neutrality (also network neutrality, Internet neutrality, or net equality) this way:
The principle that Internet service providers and governments should treat all data on the Internet equally, not discriminating or charging differentially by user, content, site, platform, application, type of attached equipment, or mode of communication. The term was coined by Columbia University media law professor Tim Wu in 2003, as an extension of the longstanding concept of a common carrier.[1][2][3][4]

Here is an interactive infographic illustrating this multi faceted dilema,