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DOCSIS 3.1 Makes Cable Act Like Fiber
Written by John ShiplerCable broadband, once considered a low-end networking option, has quietly received a major technical overhaul that makes it competitive with fiber-optic bandwidth for many business applications. Companies that once viewed cables as a backup connection now find the combination of high performance and low cost too tempting to ignore. Let's take a look at what's going on behind the scenes and what cable options they have to offer now and in the near future.
Magic number 1: HFC cable factory
When cable started out as cable TV, there was a very large antenna receiver and "on top" distribution amplifiers to create the equivalent of what you can broadcast on the air. . The full range of analog signals are broadcast throughout the city, but what comes out of the TV socket is a more powerful version of OTA (over-the-air) TV.
Time has passed and some OTA channels have been supplemented by dozens and dozens of non-satellite channels for the same key point. These "cable channels" quickly ran out of capacity of the larger coaxial cables feeding the smaller coaxial cables feeding the televisions. Cable companies have begun to rebuild programs to increase capacity ... but they haven't done the same thing. Instead, they joined new fiber optic bundles and connected existing patch cables to the new fiber optic trunk lines. This combination is called HFC or Hybrid Fiber-Coax.
HFC adds the ability to host a hundred or more TV channels on the same cable with add-ons that enable broadband Internet distribution along with full digital broadcasting. Remember that the cable that connects to your TV or modem looks like an old analog cable. this is. But you only have to travel a short distance before you can connect to a high-capacity fiber optic network. Get the best of both worlds ... ultra-high capacity fiber and affordable passive coaxial cable for home or work termination.
Magic # 2: Broadband DOCSIS
The DOCSIS Cable Broadband standard refers to the Data over Cable Data Service Interface specification. It was created specifically for cable companies to provide the Internet. To do this, DOCSIS signals are compatible with unused low-frequency television signals and replace standard cable TV channels.
The first version, DOCSIS 1.0, was released simultaneously to the Internet in 1997, followed by 1.1 in 1999 and a faster version 2.0 in 2001. It's something many of us have started with. Using broadband after finally becoming impatient with the dial-up Internet service. A few years ago I may have upgraded the system to a DOCSIS 3.0 modem, bringing it to current standards.
DOCSIS 3.0 makes cable a serious competitor for commercial broadband services. It supports the latest version of Internet Protocol 6 (IPV6) and has a download capacity (below) of 1 Gbps upload (upload) of 100 Mbps. Basically, users can download between 25 and 75 Mbps and upload between 5 and 7 Mbps.
Magic # 3 thinks DOCSIS 3.1 is fiber
The latest technical update for HFC systems is called DOCSIS 3.1. It seems like a gradual change, but the leap in performance is huge. DOCSIS 3.1 offers a maximum download speed of 10 Gbps. 1 to 2 Gbps maximum. Cable bandwidth is called asymmetric because download speeds are 10 times faster than upload speeds. There is another optimization, yet to be implemented, which offers Full Duplex DOCSIS 3.1 upload at 10 Gbps and download at 10 Gbps. This is the best you can get in fiber or fiber optic wavelength rental ... at a fraction of the cost.
High speed cable broadband
Cable broadband is one of the most exciting Internet access any business can get. You should already be somewhere with a cable coming in, but the chances of getting cables instead of fiber are pretty good. This is especially true in rural areas where no fiber or cable is available and high-speed satellite will be the preferred service.
The biggest advantage of the cable is the amount of bandwidth you get for the money. You will easily pay 5-10 times more for SONET or Ethernet fiber optic service. In some cases, these additional costs are worth it. The cable bandwidth is shared between a group of users, and the more expensive telecommunication services have a dedicated bandwidth. SONET and Ethernet are standard on fiber services and come with service level agreements that ensure a certain level of performance and availability at all times.
If your business runs a server farm locally or deploys large software packages or video streams, you need a dedicated service with fast speeds. But if your business uses cloud services, shared hosting, or has simple email and web browsing needs, cable broadband could have all the potential you need at a bargain price. You should at least think about it before signing an expensive lease. Our expert consultants can help you make the best decision based on the specific needs of your business. Compare DOCSIS cable to copper, fiber and satellite bandwidth options for your business environment .
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