The upstream throughput possible is 30.72 Mbit/s per 6.4 MHz channel (approximately 27 Mbit/s after overhead), or 10.24 Mbit/s per 3.2 MHz channel (approximately 9 Mbit/s after overhead). At the top of my list is making sure that pre-equalization is enabled on every return port of your cable modem termination system (CMTS). When an order cannot be filled in a timely manner, this is called a "stock-out" and activity stalls. Sometimes the concept is referred to as the "downstream the supply chain" and "upstream the supply chain.". In some operations, the same company may own multiple components of the supply chain. Modern routers are compatible with just about every modem on the market, so just make sure your firmware is upgraded, and you'll be all set. Investing in one of the best antivirus programs also offers some, though not total, protection. A supply chain includes all the businesses involved in getting a finished product to the market. I can't tell you which modem is right for your home, since that depends on your cable provider, your internet service package and your budget. So it is better if we use the parent/child terms in place of upstream/downstream in case of time/history. When you buy a modem, you'll see one acronym featured very prominently: DOCSIS. It just means that your modem can provide broadband internet access. The focus of activity would likely be to mine the requested materials as quickly and efficiently as possible. If you upgraded your router recently but bought your modem sometime around the signing of the Declaration of Independence, you probably just need a standalone cable modem. That said, the occasional security issue does pop up. DOCSIS 3.0 and 3.1 are just version numbers. Just remember that all other things being equal, higher numbers are better. Upload speeds tend to be much slower — somewhere in the neighborhood of one-quarter the download speed. Downstream SNR (Signal to Noise Ratio) refers to the signal being sent in relation to the noise on the line. A decent DOCSIS 3.0 modem ranges from $50 to $80; DOCSIS 3.1 modems tend to fall between $150 and $199, though prices are coming down to the lower end of that range. Visit our corporate site. I tried changing the wi-fi channels used. Generally, the upstream speed capable via cable modems ranges from 400 kilobits per second to 600 kilobits per second (Kbps). Also, remember that "Mbps" means "megabits per second," not "megabytes per second." 3) In CATV, a downstream channel is one used to transmit signals from the headend to the user. As with modems, cable companies usually charge exorbitant rental fees for subpar routers, and it takes less than a year for a new router to pay for itself.). The second method is to check the Approved Modems website, which exists for this very purpose. Channel members share in responsibilities of sourcing quality materials, arranging for low-cost logistics and transportation and garnering marketplace demand. Upstream: This means away from you and towards the internet and your internet service provider. If your modem is capable of pulling 1.4 gigabits but you subscribe to a plan that caps your speed at 25 Mbps, you're going to get 25 Mbps. The Upstream Channel Bonding (USCB) feature helps cable operators offer higher upstream (US) bandwidth per cable modem (CM) user by combining multiple radio frequency (RF) channels to form a larger bonding group at the MAC layer. As an example, when you request the webpage www.google.com, your initial request out to google uses your upstream channels and when google delivers you the contents of their webpage, that uses the downstream channels. Downstream: The opposite of upstream. Supply Chain Quarterly: Supply Chain Segmentation, 10 Steps to Greater Profits. The company must also be willing to push out firmware updates on a regular basis, which is easier for some modems than for others. DOCSIS stands for "Data Over Cable Service Interface Specification." The focus of this article will be on the mechanics of upstream channel bonding and how it works more from a DOCSIS protocol perspective. Upstream is the information you send from your home to the internet. That's fast, but you're not going to get a 50-gigabyte game or an enormous cache of photos in mere minutes. One important downstream activity is inventory management. First things first: How happy are you with your router? Please refresh the page and try again. NY 10036. The last thing you'll have to check is whether your modem is compatible with your ISP. The terms upstream and downstream oil and gas production refer to an oil or gas company's location in the supply chain. An explanation of upstream and downstream is relative to location along the supply route. DOCSIS 3.1! Note that with plain port channels, each physical link that makes up one end of the port channel must terminate on the same switch. Upstream or upload speed is the term given to the data that your computer sends out to the Internet. Most modern modems use either the DOCSIS 3.0 or 3.1 protocols, but neither manufacturers nor retailers ever really explain what this means or why the distinction is important. But once you understand what all the arcane terminology means, you'll find that there are probably a handful, rather than dozens, of choices worth considering. Downstream from the assembly plant are distributors, shipping partners, and point-of-sale stops along the way, such as wholesalers and retailers. Supply chain management takes into account suppliers, manufacturing plants, distributors, wholesale warehouses and retail stores. If something goes wrong, your entire internet setup is shot, and it's easier — and cheaper — to upgrade modems and routers separately. Just about every modem provides many more downstream channels than upstream ones, because ISPs and end users alike are more concerned with downloading content than uploading it. Channel bonding is a method by which smaller bandwidth upstream channels are bonded together to create a larger upstream bonding group in the MAC domain. Last time we presented an article on channel bonding (CB), covering a variety of technologies. I tried power-cycling the modem. The general objective across the board is to get finished products to the consumer in the most cost-effective manner. But since the average broadband speed in the United States is somewhere in the neighborhood of only 66 Mbps, DOCSIS 3.0 will be fine for the vast majority of users. Learn the particular stops along the way where the terms are used to know what they refer … It's not at all clear what the average user is supposed to glean from this. 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