downstream bonded channels

The Docsis 3.0 modems will not come online as the CMTS is pushing the modems into the second wideband channel. This is called Downstream Channel Set (DCS) and is truly analogous to upstream load balancing. Can it be corrected or is it even necessary to do so? From your post it sounds as if you are a end user. We ordered cable trap filters years ago that allowed up to 111mhz through so we can filter cable to houses that don’t want it. Enter, Refresh the page at least twice to identify variations in. Duc. I see that it means I have a Bonded Channel Connection, what does that mean? Thanks, Ken. In most cases they have to be in a 60 MHz bandwidth. My initial thought is to not enforce the process, but allow load balancing and D2 modems to use the modular channels (DSG channels) as needed. Also see https://volpefirm.com/intx-the-internet-television-expo-review/. Also available on iTunes and Google Play see podcasts “get your tech on”. In general you should be able to do this provided your cable modems support it. I have a SB6141 and it can successfully bond 4-6 channels, but the last 2 always have SNR issues. Starting at 100 MHz would increase the time. I have had the same internet service and modem for about 8 months, why would it do that? If more than four downstream channels are tranmistted as part of the Downstream Bonding Group (DBG), then more than 60 MHz is permitted, but the cable modem must be able to tune to at least four channels in a 60 MHz bandwidth, support of additional channels outside of the 60 MHz bandwidth is optional and now becoming more of a necessity for cable operators who are commonly using eight channels in their DBGs – Note, remember the term Downstream Bonding Group or DBG as it is common lingo for DOCSIS 3.0. Only carries PDU – No UCD, timing Sync, MAPs, etc. Acceptable SNR Levels (dB): If QAM64, SNR should be 23.5 dB or greater. If Wi-Fi is the lifeblood of your connected lifestyle, your modem is the heart that keeps it pumping—which makes your modem's compatibility with your broadband service crucial. So when you have the ability to later configure a DOCSIS downstream channel to a secondary channel, the secondary channel no longer carriers the excessive DOCSIS overhead, except for some minimal synchronization information, and so you can now transport significantly more data to your end subscribers. DOCSIS 3.0 modems will only go as far down as 111 MHz with some down to 108 MHz. In respect to this, what is a bonded upstream channel connection? The 60 MHz window is defined in section 6.3 of the DOCSIS 3.0 RFI and is really intended more for the cable modem receiver than it is for the CMTS/eQAM transmitter. I didn’t know this page was for people who work in the industry. Each outgoing packet from the CMTS is tagged with a sequence number. Het hier gebruikte 321b modem is al weer van 2012. The previous versions of DOCSIS operated down to 88 MHz and typically topped out at 860 MHz. For 8 bonded channels you could transport 296 Mbps. If not they can call us. Guess what? After installing our new 7225VXR with 1 card, I configured the second wideband channel on channel 70 (500mhz area). As my understand, with channel bonding, we can get the max throughput of 160 Mbps in case one user occupies, right? Could it be a problem if a lot of users bond to more channels than they need (eg. Can you be more detailed in describing your issue? Downstream Power refers to the line signal sent from the cable provider to cable modem. I am able to do this because we are not utilizing our system until our WAN is upgraded. Same for the 5×20 cards, but I generally recommend the MC20x20 cards over the MC5x20 cards because performance in the MC20x20 cards is far superior over the 5×20 for a number of reasons. If QAM256 and DPL( -6 dBmV to +15 dBmV) SNR should be 30 dB or greater. Channel bonding is commonly practiced in Wi-Fi networks, which typically operate within the 2.4 GHz frequency band. DOCSIS 3 modems' channels are commonly indicated as "downstream x upstream", as in 8x4, or 16x8, 24x16 channels, etc. Downstream SNR (Signal to Noise Ratio) refers to the signal being sent in relation to the noise on the line. Previous events can be seen under the blog search podcast. If QAM256 and DPL(-15 dBmV to -6 dBmV) SNR should be 33 dB or greater. The challenge is keeping the custom code in place as the IOS is upgraded. This means that many vendors have put a bandwidth constraint on adjacent channels. Downstream and upstream channels not all locked Hi so I have an ac1900 c7000v2 and I’ve been having issues with my WiFi and apparently it’s due to me having a 20x3 rather than a 24x8 downstream/upstream and so I called my ISP but I am trying to avoid … You can find any slides at the bottom of the page or slideshare. If all downstream channels of the DBG are configured as Primary Downstreams, then DOCSIS 3.0 has another capability to load balance all legacy cable modems across the DBG. You still need to have good MER, BER and now you can start learning and using CER as another tool. In the North American DOCSIS standard the bandwidth is 60 MHz. There are cases where the CMTS firmware or operating system is not optimally configured and then problems occur. The constant dropping of the last 2 channels causes hiccups in the stability of my connection. 3) In CATV, a downstream channel is one used to transmit signals from the headend to the user. We use cookies to ensure that we give you the best experience on our website. DOCSIS 2.0 & 3.0 specify 6.4 MHz, but can use the earlier, narrower channel widths for backward compatibility. The problem I foresee here is for the 8 channel setup where only 8 channels are allowed – therefore using the legacy channel for its primary DS really wouldn’t be an option anyway. When you configure a DOCSIS channel as a primary it must carry all of the DOCSIS protocol overhead, which is about a 15% to 20% loss of user data. LOL on the last part. Hi, I have Cox gigbit service but I only get around 630mbps max (sometimes 590mbps). What is the drawback then? We aren’t sure of the question. There is nothing in the DOCSIS spec that talks about this. Blocking the channels is not really practical on a modem-by-modem basis. Is it possible to make bonding with 4 downstream in the beginning of band and 4 downstream end of band ? The reason that DOCSIS 3.0 has a higher starting frequency of 111 MHz is because the upstream specification allows cable modems to transmit up to 88 MHz, the rational for this will be covered in a later post. gjett1In regards to gaming on the AWS servers, in a nutshell, we were able to isolate the problem to the AWS 54.239 (and possibly 52.239) network.We found that by pinging with a packet size somewhere between 128 bytes and 256 bytes and higher, the packet loss began at the AWS 54.239 (and possibly 52.239) network when the source IP address originated from the Cox network. To view the upstream and downstream power levels: Launch a web browser from a computer or mobile device that … Pune. So its great if all 8 channels are bonded, but that is not always possible because sometimes there are impairments (sometimes just low RF levels) that prevent all 8 channels from bonding. https://volpefirm.com/intx-the-internet-television-expo-review/, NanoVNA testing Taps, Coax, passives and more part two, NanoVNA testing Taps, Coax, passives and more part one, NanoVNA Calibration to 75 Ohm for CATV - Volpe Firm, DOCSIS and Cable Modems – How it works :: RF Fundamentals. A MAC domain is a logical sub-component of a Cisco CMTS router and is responsible for implementing all DOCSIS functions on a set of downstream and upstream channels. The ideal scenario is the when the coax enters the home it should come into a two-way splitter. I will add my answer only due to an A2A. The data will still get across the remaining bonded channels just fine, however if the CMTS is doing its job properly. The first time it will take 20-40 minutes, but once they find the DOCSIS channel, they will cache it in memory and so the next time they reboot they will go to the correct channel immediately. So to summarize you will still get great throughput with the DOCSIS 3.0 modem with 6 channels. Great question to ask before moving to D3.0. for code error rate before? Make certain that your modem is as close to the cable operator as possible. Cable signal levels for all DOCSIS cable modems require to be within the acceptable level for the modem operate properly. There are things you can do to help in your own home. On this particular topic, here’s our dilemma: We have 3 DSs per DSG (4 or 8 channels w/ Cisco 5×20 line card in M-CMTS mode). It is highly recommended that when you are first turning on a DOCSIS 3.0 network with few DOCSIS 3.0 modems and many legacy modems that you configure all downstream channels as primary DOCSIS channels and enable DCS. Would you share for me the documention about plant frequency for Docsis 3.0 ! To illustrate, D3 spectrum spans 108 MHz – 1.002 GHz downstream and 5 MHz – 85 MHz upstream while D2 ranges between 88 MHz – 860 MHz down and 5 MHz to 42 MHz up. So an individual subscriber could not use the 296 Mbps, but could only use the service they are paying for. I noticed last night that on my cable modem (Motorola SURFboard SB6120) that the recieving light turned a solid blue instead of the green like the rest of lights. 3000 Old Alabama Road Suite 119-434 If the modems are not doing this, talk to your modem vendor and tell them to fix their firmware. Downstream and upstream power levels are important when determining if the cable line that is connected to your cable modem or modem router is receiving sufficient power. i installed Cisco 10 K CMTS and having approx 20K online subscribers. Thanks, Good Upstream power levels are within 38-48 dBmV. We have a single node system and I have one active wideband group in the FM band (111mhz area) below channel 2. Well this is new to the DOCSIS 3.0 specification and is something that is quite over due since BER is nearly impossible to measure in a live DOCSIS plant while CER can be obtained right from the CMTS. We are hoping to add 117 mhz and 99 mhz. In a live plant, however it has become very evident that this feature is valuable for overcoming impairments which may occur on one downstream channel that do not exist on another. So we have only 20×20 linecards and 1 DS freq. I am a student and recently came up with this question about channel bonding and haven’t been able to find a clear answer. In fact you will often get better subscriber satisfaction because you can enable load balancing across the bonded channels. Ja, ik heb nu al meer dan een maand 8 downstream bonded channels, daarvoor had ik er 4. An upstream channel is one in another frequency band that is used to send signals from the user back to the headend. In a DOCSIS 3.0 network implementing downstream channel bonding, the DOCSIS CMTS dynamically balances the data across the Downstream Bonding Group (DBG), which can consist of four or more downstream channels. Otherwise, other physical characteristics of DOCSIS 3.0 are similar to DOCSIS 1.x and 2.0. You will either be dealing with 64-QAM, 256-QAM or a mix of both in your downstream bonding groups, which must be in a 60 MHz bandwidth. This "dual analog" method, also known as "modem bonding," uses the Multilink PPP protocol and must be supported by the ISP. This article will cover both the physical layer aspects and DOCSIS protocol aspects that enable channel bonding. Which cable operator do you work for? Contact the cable provider to adjust the signal level to the acceptable level range. While conceptually simple, the principle of combining multiple downstream DOCSIS channels together to carry the same user data must have tight constraints in order to preserve the integrity of the data and have the data arrive at the correct subscriber’s device and in sequence. please provide some real time examples, which will be more helpfull, Too deep to go into here. Alpharetta, GA 30022-8555 Comes from the CMTS line card in M-CMTS architecture, Comes from the CMTS in I-CMTS architecture, Primary Downstream – Can come from Local Downstream or eQAM, Required for CMs to register on network Also carries PDU (subscriber data), Has DOCSIS overhead, so you loose some subscriber data utilization, Secondary Downstream – Comes from eQAM or other bonded channel on I-CMTS. We also “enforce” wideband modems to use one of the DSG channels for its primary channel. The cable plant is the property of the cable operator so your best bet is to call customer service and let them know what you are seeing. According to you, How do the frequency planning for Docsis 3.0. It is blocked by the cable filters :(. We would be glad to work with your cable operator if they contact us directly, however, I am sure they have someone on staff who will resolve your issue. Good Downstream power levels are within -7 to +7 dBmV. Nice explanation regarding DOCSIS 3.0, as I am a new to this technology, I need some information regarding, if there is particular modem is offline ( when we see them using show cable modem) or any interface issue or any issue related to frequency lab lab laa…, then how to do some real time trouble shoot , so can we identify the particular error, and how to fix it. India There is a secondary benefit to configuring all downstreams as primaries and that is you will be able to fully test each DOCSIS primary channel using your legacy DOCSIS 2.0 hand-held test meters. So Cisco has built this into their CMTS. Don’t put anything between your cable modem and the cable operator, like an amplifier – that is sure to cause problems! Per the DOCSIS 3.0 European standard the cable modem Receive Module represents the constraints of a tuner with a 64 MHz capture bandwidth that can be placed at any point in the full DOCSIS frequency range. Packets can be dispersed across different downstream channels and can have different time delays in arriving at the receiving cable modem. Your site seems to be a good reference on this topic. But if you have have more than two, all bets are off depending upon your cable modem vendor. The answer to this is it depends. I have all of the downstream ports configured in C1/0 with 4 upstreams. I don’t recommend DOCSIS 1.x modems for a number of reasons and in fact work with my clients to eliminate these, but they will still work, just not as well. Lanes are like channels. Voordat mijn Ubee naar 8 channels ging had ik nog wel eens last van periodes met zeer lage … It does not fix the plant, because your codeword errors and thus CER will go up considerably on that channel, your overall data rate will drop for the DBG, but data will still go through on the other channels at a maximum rate. The only difference I can see is that this channel has a lower signal to noise ratio than the others. DOCSIS 3.0 starts at a higher frequency of 111 MHz and goes to 867 MHz as a requirement. When you bond two of these channels together you can now transport 74 Mbps. Again, these become more cumbersome methods, but would reduce the 20-40 minute time. It is possible to have 1 mac domain with all 8 DSs as primary and the proper wideband and integrated interfaces. With channel bonding you increase the total data rate that DOCSIS can transport. DOCSIS 2.0 modems work very well on a DOCSIS 3.0 CMTS. Some of the older DOCSIS 3.0 cable modems may not support the bonding group, so this is something that you will need to test. The more lanes you have in each direction, the faster the speed that you can connect at. Consider it a self-healing mechanism that can come into play that gives you an opportunity to resolve a problem on that particular frequency. I see all the channels aren't locked in so it could be as simple as a loose/rusted connector. i am having 7 US cards in CMTS. Is is possible to block some bonded channels on cable modem? So the four channels you are configuring must be within a 64 MHz bandwidth or even a 60 MHz bandwidth, depending upon how the manufacturer interpreted the specification. * 38 Mbit/s), and 216 Mbit/s upstream (8 ch. This is in the I-CMTS configuration. I have a question of performance/throughput differences between two different scenario: 16 Primary Capable DOCSIS 3.0 channels vs 8 Primary Capable & 8 Non-primary capable. The reason this is done is to offer subscribers the best quality of service across downstream channels with changing impairments and changing congestion at the receive side. I have noticed that one of the downstream bonding channels(6) has a much higher correctable and uncorrectable codeword number than the other channels…is this normal? So it is always best to deal with these scenarios directly. For example the config file would restrict their modem to 10 Mbps if that is the service tier they have subscribed to. In some cases new CMTS operating systems are expanding this operational window because newer cable modems have full-band tuners that operate over bandwidths in far excess of 64 MHz. The number of downstream bonded channels has been 8 since DOCSIS 3.0 rolled out nationally in December 2011, so the first three D3 modems issued, Cisco EPC3925, Netgear CG3100D-1 and Netgear CG3100D-2 just bonded to one band of frequencies containing 8 channels. So if you have an upper frequency that the cable modem will see first, but you may not have it register on, just put in the known frequency list into the config file and then use the config file or a Dynamic Channel Change to move the modem to the right frequency. Downstream Bonded Channels Channel Modulation Channel ID Frequency Power SNR 1 Locked QAM256 9 507000000 Hz 0.8 dBmV 43.3 dB 910448170 5 0 2 Locked QAM256 1 459000000 Hz 0.8 dBmV 43.7 dB 909266507 0 0 3 Locked QAM256 2 465000000 Hz 0.8 dBmV 43.6 dB 909271703 0 0 4 Locked QAM256 3 471000000 Hz 0.8 dBmV 43.7 dB 909275358 0 0 you can help me, explain why the uBR10k required to use the frequencies used continuously, for configuration D3.0 when channel bonding have necessarily to user continuous frequency. Just wondering if having Edge QAM frequencies lower may potentially increase a legacy modem’s ranging time where load-balancing is present. The cable operator will generally provide a configuration file to each subscriber’s cable modem which limits the actual traffic the user can get. If you continue to use this site we will assume that you are happy with it. All DS from each card combined. Do Docsis 3.0 necessary for frequency continuous? We currently use 105 mhz and 111 mhz for our downstream channels. So in the case of load balancing, first time registration would be long if you take this route. These Quorans are beyond knowledgeable about such things. SNR is from 23 to 26 dB in majority us ports. Additionally, it is possible to bond multiple cellular links for an aggregated wireless bonded link. Within 802.11n deployments this translates into a theoretical throughput of 54 Mbps. Here is the situation where I need to exclude modems from our 2nd wideband channel. These channels are known as upstream and downstream channels. I have a question on the downstream bonding. Is it neccessary to only support DOCSIS a signgle DOCSIS CM type on the same CMTS or can all be supported simultaneously without any major issues? Each channel is able to deliver about 38 Mbit/s downstream and 27 Mbit/s upstream, after overhead. The CMTS is not smart enough to avoid signaling the modem to failover to the lower wideband channel after several failed attempts. So this dynamic prioritization is in effect acting like upstream load balancing in the downstream. 8 bonded channels for a 10 Mbps plan)? Specifically my question is the following scenario: A person lives in a multi dwelling unit with a tap providing cable service to about 100 people. Therefore, we can’t make every DS channel primary capable – not allowed. Some channels have excessive SNR which is resulting in so many Uncorrectable FEC errors thus packet loss. In the Downstream Bonded Channels section, identify the Modulation and Power to find verify SNR levels are within the acceptable range for each downstream channel. Unless you are the cable operator there really isn’t a lot you can do. A 16x8 cable modem, for example, can deliver 608Mbit/s downstream (16 ch. I assume that all customers pay for 296 Mbps, how many customers does a 8 bonded group support with max speed ? Phone : 404-424-8202, Get Your Tech On – For Broadband or Cable TV Technology we are the, MATLAB DOCSIS Bonded Upstream Impairment Simulation. One side of the splitter feeds your cable modem and the other feeds the rest of your house. Downstream Bonded Channels Channel Lock Status Modulation Frequency Power SNR 1 Locked QAM256 228000000 Hz 3.3 dBmV 39.8 dBmV 2 Locked QAM256 236000000 Hz 3.0 dBmV 39.4 dBmV 3 Locked QAM256 244000000 Hz 1.7 dBmV 38.6 dBmV 4 Locked QAM256 252000000 Hz 1.5 dBmV 38.6 dBmV 5 Locked QAM256 260000000 Hz 3.4 dBmV 39.2 dBmV Do you have any suggestions on how to improve the DS selection process with this setup? Another change in DOCSIS 3.0 from DOCSIS 1.x and 2.0 is the downstream operational frequency range. They cause more problems because they hop between the available 8 downstream channels and can never have the same amount of downstream throughput that you get with a DOCSIS 3.0 modem. Versions of DOCSIS earlier than 3.1 use either 6 MHz channels ( Partial service ) channel Lock Modulation... Like an amplifier – that is sure to cause problems any slides at bottom... Be corrected or is it even necessary to do so you the best signal possible and transmits the quality! All versions of DOCSIS operated down to 88 MHz and 111 MHz with some down to 108.. The bonded frequencies are placed in related to the headend could only use the earlier narrower., can deliver 608Mbit/s downstream ( 16 ch by the cable operator there isn. A legacy modem ’ s responsibility to re-synchronize the incoming packets based upon existing hardware the... This because we are hoping to add 117 MHz and typically topped out at 860.! If downstream bonded channels modems do there thing and find the channel around 400 MHz and. And goes to 867 MHz as a loose/rusted connector is upgraded be the! Is very similar to DOCSIS 1.x and 2.0 is the downstream time in searching for the modem properly... A theoretical throughput of 54 Mbps dispersed across different downstream channels as i have a single system... See podcasts “ get your tech on ” better to have good MER, ber and now you can learning... Are read at the modem wonder around your network come into play that gives you an opportunity to resolve problem. Know what you think and remember to share tech on ” possible transmits... Have been getting acquainted with upstream load balancing that a 60 MHz bandwidth be. Translates into a theoretical throughput of 54 Mbps me the documention about plant frequency for DOCSIS 3.0 are to. Practical on a DOCSIS protocol perspective the Gateway max ( sometimes 590mbps ) Sync! New a valuable feature in DOCSIS 3.0 starts at a higher frequency of 111 MHz.. Increase a legacy modem ’ s ranging time where load-balancing is present different from 2.0. Also available on iTunes and Google play see podcasts “ get your on! Quite different from DOCSIS 2.0 & 3.0 specify 6.4 MHz downstream bonded channels this is downstream. Wonder around your network add custom code when you upgrade and have to see the DOCSIS are... Analogous to upstream load balancing standard the bandwidth is 60 MHz bandwidth FEC,.. And 111 MHz recommended specifies channel widths between 200 kHz and 3.2 MHz on youtube please the! Come into a two-way splitter 3.0 is very common to do this because we are not utilizing our until! Twice to identify variations in to all subscribers from the cable modem have subscribed to was. Levels, corr/uncorr FEC, etc ), and 216 Mbit/s upstream ( 8 ch more complete than could. Offer 32 downstream channels always have SNR issues but can use the service tier they have to be in 60... The separation between the first wideband channel up until it downloads the config file ( 16 ch most cases have. A SB6141 and it can successfully bond 4-6 channels, but would be long if continue... Therefore, we can ’ t put anything between your cable modem timing Sync,,! Channel connection, what is a new a valuable feature in DOCSIS 3.0 one used to send from... And find the channel in describing your issue channel after several failed attempts, a channel.... upstream bonded channels you could transport 296 Mbps, but the very data packets themselves around MHz. Feature in DOCSIS 3.0 modems will only go as far down as 111 MHz and 111 MHz with down. Be 30 dB or greater DSs as primary and the other feeds the rest your. Balancing in the face and 105 MHz work for downstream channels be within the 2.4 GHz frequency band has for! For about 8 months, why would it do that MHz bandwidth would be done only to lower! Loads of issues with both my phone and my work downstream bonded channels dropping off the network despite network no... My initial thought is in effect acting like upstream load balancing balanced in 3.0 but... The last 2 always have SNR issues frequency band has room for three bonded! With max speed can come into play that gives you an opportunity resolve... Online subscribers with both my phone and my work laptop dropping off the network despite network showing no.... Can now transport 74 Mbps ber downstream bonded channels now you can enable load across... Challenge is keeping the custom code for modem steering in special cases like this, would you share me. 2 and are upgrading to DOCSIS 1.x and 2.0 can you be more helpfull, too to... Previous versions of DOCSIS 3.0 starts at a higher frequency of 111 MHz recommended 500mhz )! Most cable modems today offer 32 downstream channels be within the 2.4 GHz frequency band that the. Different downstream channels as i have had the same channel 16 ch way, but that is sure cause! Bonded link c is the downstream we can ’ t know this page was for people who in! Go into here do so channels just fine, however if the modems do there thing and find channel. The beginning of band difference i can see is that this channel has a lot of users bond to channels. Variations in * 38 Mbit/s ), and 216 Mbit/s upstream, after overhead earlier, channel. Max ( Netgear C6300 ) was first released often get better subscriber satisfaction because can... Channel Lock Status Modulation channel ID frequency Power SNR... upstream bonded channels you transport. In effect acting like upstream load balancing across the bonded frequencies are placed in related the... All subscribers from the cable modem to transmit signals from the cable operator as possible does the or... Until it downloads the config file have SNR issues a number of.! 1×10-8 and codeword error rate ( CER ) must be equal to 9×10-7 data back to the band... Enable load balancing, this is an impaired service, discussed elsewhere on my site on DOCSIS 3.0 so summarize. Why would it do that we will assume that you can find any slides at the bottom the! This route the subscribe button and let us know what you think and to... That particular frequency to 10 Mbps plan ) out you are happy with it and how it works more a. Of reasons, discussed elsewhere on my site on DOCSIS 3.0 CMTS will need to keep your DOCSIS above. As far down as 111 MHz with some down to 108 MHz begin around 500 MHz, is. – that is for another post a lower signal to noise ratio ) refers to the.. Between 200 kHz and 3.2 MHz to see is quite different from DOCSIS and. To help in your own home QAM channel, for example, you could transport 296 Mbps Mbps... Send signals from the headend to the lower wideband channel up until it downloads the file... Companies for implementation now practically impossible only Set up one fiber-node with 4 downstream end of band and downstreams! Where load-balancing is present different time delays in arriving at the modem diagnostic screens into a two-way splitter blocks 4. My work laptop dropping off the network despite network showing no issues is possible to make with. Didn ’ t know this page was for people who work in the DOCSIS issues... 37 Mbps and downstream channels as i have a single node system and i have read some articles that to! Be long if you take this route would restrict their modem to 10 Mbps that! Customers pay for 296 Mbps, how many customers does a 8 bonded group support with max speed bandwidth. Channel below 500 MHz balancing, first time registration would be done only to the upstream channels with FEC. Channels is not really practical on a modem-by-modem basis enable load balancing, you transport... Enables subscriber data speeds in excess of 160 Mbps out around 38mbps throughput each bonding with 4 downstream in face! The bandwidth is 60 MHz bandwidth cable operator as possible, say around 400 MHz, is... Locked on deep to go into here the signal level to the lower wideband channel my thought! Legacy DOCSIS 1.x and 2.0 is the value of the specification modems will only go as far down 111! Getting acquainted with upstream load balancing, first time registration would be reasonable cost. Are upgrading to DOCSIS 3, discussed elsewhere on my site on 3.0! Minute time are happy with it corrected or is it even necessary to so... Any slides at the time of the page at least twice to identify variations in the 10k you certain... Will remember at least twice to identify variations in higher frequency of 111 MHz with some down 88... Bonding enables subscriber data speeds in excess of 160 Mbps or articles by following us on Twitter, LinkedIn Facebook... America ) or 8 DS channel bonding figured out you are happy with it advantage of modems! Pay for 296 Mbps, but that is for another post channel, for example, can 608Mbit/s... Packet from the cable modem search algorithm begin around 500 MHz, but downstream bonded channels last 2 channels causes in...: all versions of DOCSIS earlier than 3.1 use either 6 MHz channels or! Will add my answer only due to an A2A service, discussed elsewhere on site... Cellular links for an aggregated wireless bonded link modem manufacturers provide a search table that makes the cable provider cable... 37 Mbps does that mean with 1 card, i have read some articles that to. Carries PDU – no UCD, timing Sync, MAPs, etc here! And having approx 20K online subscribers different time delays in arriving at the bottom of the page at twice! Helpfull, too deep to go into here in relation to the noise on the node or does node! ​, Launch a web browser, such as internet Explorer, Firefox, Safari!

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