In one embodiment, a method includes retrieving a playlist for a video stream of video content for a client. The playlist is for portions of video content for the video stream. A traffic shaping service determines a set of rules for the playlist for a set of portions in the plurality of portions where each rule is associated with a network condition. For each rule, the method performs: dynamically allocating a port and setting a network condition to apply to the port according to the rule. During playback of the video content, the traffic shaping service receives a request for a portion from the client and determines a port associated with the request for the portion. The method then sends a traffic shaped portion through the determined port where the network condition is applied to the traffic shaped portion based on the network condition being set on the port.