Verizon has taken offense at Netflix's buffering message that blames Verizon's busy network for sub-par video delivery.

It's so upset it sent the video-delivery site a cease and desist letter.

First noticed by journalist_Yuti Victor, the new Netflix buffering message for Verizon customers states: "The Verizon network is crowded right now. Adjusting video for smoother playback…"

Today Verizon responded with legal action. The letter,_first reported by CNBC, states: There is no basis for Netflix to assert that issues with respect to playback of any particular video session are attributable solely to the Verizon network.