Telecommunications analysts advised U.S. lawmakers on Tuesday to take a “light touch” in drafting legislation affecting telecom and cable companies, warning that excessive government regulation could chill investment in the sector.

At issue is a budding congressional and corporate battle over the issue of “Net neutrality,” the principle that the communications infrastructure underlying the Internet should remain free. Several bills under consideration on Capitol Hill would prohibit telecom carriers from discriminating against Internet content and service companies that use their networks.