Comcast has announced the launch of a new technology that promises to significantly reduce network latency for Xfinity home internet users. The upgrade, which is based on an open standard called L4S (Low Latency, Low Loss, Scalable Throughput), aims to provide a smoother experience for users of various applications, including video calls, virtual reality, and online gaming. According to Comcast spokesperson Joel Shadle, trials of the L4S technology have shown a latency reduction of up to 78%.
This improvement is achieved by assigning indicators to internet traffic packets, allowing devices to identify congestion points and adjust accordingly. While L4S does not increase raw bandwidth, the smarter traffic management can lead to a noticeable improvement in performance. The development of L4S involved collaboration with companies such as Nvidia and Apple, ensuring better-quality streaming and gaming experiences for users.
Fans of online gaming and real-time video applications, in particular, are expected to benefit from this advancement. Unlike traditional Quality of Service (QoS) technologies, which often require manual router settings, L4S offers more intelligent and automatic adjustments within different types of traffic.
Low-latency upgrade for Xfinity users
This dynamic traffic management system represents a significant step forward in providing a more consistent and reliable online experience. The rollout of L4S will begin in select cities, including Atlanta, Chicago, Colorado Springs, Philadelphia, Rockville (Maryland), and San Francisco. The upgrade is initially available in Comcast markets offering multi-gig symmetrical speeds and requires compatible hardware, such as the XB6, XB7, or XB8 Advanced Gateways.
Next-generation retail devices supporting the technology are expected to be available by the second quarter of the year. Comcast has emphasized that the L4S upgrade does not compromise the quality or speed of other applications. Jason Livingood, a VP at Comcast, stated that application marking for low-latency treatment is voluntary, incurs no additional costs, and does not require proprietary APIs.
As trials continue, more detailed information regarding device compatibility and performance metrics is anticipated. Comcast’s effort to ensure lower latency aligns with the growing demand for high-quality, real-time online experiences and could potentially boost the company’s standing among gaming ISPs.
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