Mediacom said Monday it had completed a fiber link to Netflix, which it says has led to steadily improving performance for its high-speed customers accessing the popular video site.

Netflix users are estimated to make up over a third of downstream Internet traffic at peak periods, and the percentage is still growing, according to Sandvine.

Mediacom EVP John Pascarelli said that Mediacom began moving Netflix traffic to the direct connection in late July and completed the switch last month. He pointed out that every month since May Mediacom has been moving up in the Netflix ISP speed index -- from 3.44 Mbps in May to 3.54 Mbps in September.

Mediacom and TiVo announced the interconnection deal in May, which does not involve Open Connect, Netflix’s private CDN that relies on edge caches. At the time, Mediacom confirmed that its agreement with Netflix does not involve payments, which differs from the paid interconnection deals Netflix has signed with Comcast, AT&T, Verizon and Time Warner Cable (Bright House Networks is benefiting from the TWC/Netflix agreement).

-Multichannel News technology editor Jeff Baumgartner contributed to this report.