Why was docsis created

Verizon, I beat you to it. I also kept saying it. Communication during the multi-player game of Tribes was the key to success. While the first recorded cable modem trial was performed by MITRE Cablenet in , it was really just a science experiment, but did reach speed of The challenge for cable operators is that if you bought a CMTS from one of these vendors you also were required to purchase all of your modems from them as well.

This is because they were proprietary systems non-standards-based. To cable operators and the cable industry this meant we could buy CMTSs from one vendor and modems from another — this resulted in competition, lower costs and innovation. Further, the specification enabled up to 37 Mbps net throughput in the downstream and 8 Mbps net in the upstream. Cable modems were always on, so dialing up was no longer necessary and the modems did not tie up existing phone lines.

The speed was unprecedented and always-on modem capability meant that a user could walk up to their computer and instantly access the Internet. It was amazing! Suddenly we went from video only content providers to providers of the Internet too. What if cable networks were not capable of distributing data?

While a rhetorical question, it shutters one to think of the consequences. For many cable operators today a significant percentage of their revenue is derived directly from DOCSIS data subscribers. While video was the technology that built the cable industry, data is what drives it. Also, what if we only had to rely on DSL and dial-up. Innovation would have been slow and so would be your Internet speeds.

Remember the timing. This was huge. If only cable operators could compete directly against telecom operators in the telephony space this would be something called The Triple Play. Cable operators would be able to sell video, data and voice directly to their subscribers, something never before possible in the history of cable. The game was on and has never ceased since. It earned its place in history. Also, when you see that your cable modems are registered as DOC1.

It means they are ready to support the highest level of quality of service that our DOCSIS networks currently provide. This next release packed in a lot of features focused on the upstream. Specifically, the specification increased the maximum upstream transmit speed from 8 Mbps net to 27 Mbps net — over a 3x increase!

Additionally it added a number of enhancements for combating upstream impairments such as ingress cancellation, dynamic interleaving for impulse noise and S-CDMA. P2P file sharing was first popularized in by a company called Napster. Along the way, several additions to the base technology have been continuously added.

These include enabling lower latencies, increased security of the traffic, and tools to make the network more reliable. It will quadruple the upstream capacity to 6 Gbps, to match changing data traffic patterns and open doors to even more gigabit services, such as innovative videoconferencing applications and more. These metrics will directly impact your future in a real, tangible way.

Over the past two decades, high-speed internet connectivity went from an obscure tech geek novelty to an important part of modern life. We are now streaming in 4K, collaborating on video chat, playing online games with people around the world, driving connected cars and so on. Continuous advancements in DOCSIS technologies are helping make this reality possible by increasing download and upload speeds, lowering latency—or lag—for a more seamless experience, and improving reliability and security to protect our online information.

Andy Dolan Senior Security Engineer. Ann Finnie Global Communications Manager. Barry Ferris Senior Product Manager. Carmela Stuart Director of Business Technologies. Chad Riland Program Manager, Innovation.

Chris Lammers Chief Operating Officer. Darshak Thakore Principal Architect. Debbie Fitzgerald Technology Policy Director. Doug Jones Principal Architect. Eric Klassen Executive Producer. Greg Rutz. Greg White Distinguished Technologist. European cable television operators have different frequency allocation bandwidth plans than operators in the United States. American cable television operators have a frequency bandwidth of 6 MHz while their European counterparts have a frequency bandwidth of 8 MHz.

This wider bandwidth allows European operators to offer higher downstream speeds to their customers than American cable operators. The MAC layer provides some form of organization and security to the data that is being transmitted as well as directs how internet traffic is routed. Every network device has a MAC address that controls where and when data is transmitted, and what data can be received by the network device.

One of the major reasons that DOCSIS is important to customers is that it is a significant determinant of their internet performance. As earlier stated, there have been several DOCSIS iterations over the years, with each subsequent iteration offering improved performance speeds.