HFC Network

In 1997, CableLabs released the very first version of Data Over Cable Service Interface Specification (DOCSIS ® technology) that enabled broadband internet service over Hybrid Fiber-Coaxial (HFC) networks.  Ever since, we’ve been making improvements, greatly enhancing network speed, capacity, latency, reliability and security with every new version. Today, cable operators use DOCSIS 3.1 technologies to […]

This year we have seen a shift toward working and learning from home and relying more on our broadband connection. Specifically, most of us use video conferencing for work, school and everyday communications. With that in mind, we looked at how much video conferencing a broadband connection can support. In the U.S., the Federal Communications […]

Welcome to the first installment of our CableLabs 101 series about a suite of breakthrough technologies that are instrumental in the path toward the cable industry’s 10G vision—a new era of connectivity that will revolutionize the way we live, work, learn and play. These technologies work together to further expand the capabilities of cable’s hybrid […]

The cable industry has been around since 1948, first delivering broadcast TV channels, then cable TV channels starting in the 1970s and finally—cable broadband internet in 1996. The introduction of fast-speed, “always-on” cable internet changed everything. It accelerated innovation across multiple industries and created whole new markets. Just take a moment to think: how many […]

Cable networks are fiber-rich, and cable operators have long invested in deploying more fiber deeper into their networks. A fiber-rich environment enables greater capacity, increased speeds and more flexibility to support a range of access technologies. Although cable broadband networks are typically composed of both fiber optic and coaxial cables, most cable customers are surprised […]

We’ve all adjusted the ways we work and play and socialize in response to COVID. This has increased awareness that our broadband networks are critical – and they need to be secure. The cable industry has long focused on delivering best-in-class network security and we continue to innovate as we move on towards a 10G […]

You probably know that Proactive Network Maintenance (PNM) is about finding and fixing problems before they impact the customer to ensure highly reliable and available cable broadband services. But the other side of PNM is about managing the capacity or bandwidth available in the network. PNM may have started with the former concept in mind, […]

In the middle of a global pandemic, in which people are working and playing on their various devices at home, internet usage is surging—whether because of virtual meetings or streaming entertainment or mindlessly scrolling through apps. And it’s not just the heavily used downstream aspect that’s seeing increased usage, we’re also seeing an increase in […]

Starting in mid-March, the world experienced a sudden surge in internet usage driven by the widespread COVID-19 stay-at-home orders that caused many of us to switch to working and studying at home in a matter of days. Cable broadband networks not only withstood this sudden surge in internet usage; they excelled. For example, for the […]