For the last several months, Comcast Internet customers have complained about a drop in quality of the Netflix streams being delivered to their homes, and Netflix’s own data showed a massive decline in connection speeds starting in October. But today, the two companies announced they have reached a “mutually beneficial” agreement that will hopefully turn that trend around.
Much like Netflix’s ongoing standoff with Verizon FiOS, the drop in speeds wasn’t an issue of the ISP throttling or blocking service to Netflix. Rather, the ISPs were allowing for Netflix traffic to bottleneck at what’s known as “peering ports,” the connection between Netflix’s bandwidth provider and the ISPs.
Until recently, if peering ports became congested with downstream traffic, it was common practice for an ISP to temporarily open up new ports to maintain the flow of data. This was not a business arrangement; just something that had been done as a courtesy. ISPs would expect the bandwidth companies to do the same if there was a spike in upstream traffic. However, there is virtually no upstream traffic with Netflix, so the Comcasts and Verizons of the world claimed they were being taken advantage of.