Network neutrality (also net neutrality, Internet neutrality) is a principle proposed for user access networks participating in the Internet that advocates no restrictions on content, sites, or platforms, on the kinds of equipment that may be attached, and on the modes of communication allowed, as well as communication that is not unreasonably degraded by other traffic.
The principle states that if a given user pays for a certain level of Internet access, and another user pays for a given level of access, that the two users should be able to connect to each other at the subscribed level of access.
Though the term did not enter popular use until several years later, since the early 2000s advocates of net neutrality and associated rules have raised concerns about the ability of broadband providers to use their last mile infrastructure to block Internet applications and content (e.g. websites, services, protocols), particularly those of competitors. In the US particularly, but elsewhere as well, the possibility of regulations designed to mandate the neutrality of the Internet has been subject to fierce debate.