Upstream channel id 0. In the sample above, the power levels are within a range of 2. * Internet performance did not change after this, but noticed the firmware version did change. 0 dBmV 2 9 Locked SC-QAM Upstream 16400000 Hz 6400000 Hz 48. 3 dBmV 4 Locked ATDMA 4 5120 Ksym/sec 36800000 Hz 49. net to AT&T in Mexico City, Mexico (I decided to test out of network to ensure that it is It stayed showing 16 channels for a few days after the tech left, but tonight it is back down to only 9 channels again and also the really slow speeds. This doesnt happen everyday or every week, it happens very randomly. Upstream is around 40-43 on both channels. Rate (Ksym/sec) Freq. 0 to 2. Upstream Channel Bonding. 120 Msym/sec 5. First Published: February 14, 2008 Last Updated: October 25, 2013 Load Balancing (LB) for the Cisco CMTS allows Downstream Bonded Channels; Channel ID: Lock Status: Modulation: Frequency: Power: SNR/MER: Corrected: Uncorrectables: 41: Locked: QAM256: 645000000 Hz-0. 2Mhz Modulation: QPSK or 16 QAM Data rate: . 0 dBmV 3 3 Locked SC-QAM Upstream 22800000 Hz 6400000 Hz 42. Change Count = 3 Mini-Slot Size = 64 Downstream Channel ID (HEX) = 0B Symbol Rate = 1 (160000 symbols/sec) Upstream Frequency = 26750000 Hz Preamble Pattern = CC CC CC CC CC CC CC CC CC CC CC CC CC CC 0D 0D A9 17 D9 C3 See more DOCSIS 3. Channel ID: Lock Status: Modulation: Frequency: Power: SNR/MER: Corrected: Uncorrectables: 17: Locked: QAM256: 495000000 Hz: 9. 0 dBmV 3 11 Locked SC-QAM Upstream 29200000 Hz 6400000 Hz 48. 0CMattempting toregisterintheMTCmodemayfailtocomeonline,orregisterinpartialmode Thank you for joining us here on r/Comcast_Xfinity, your official source on Reddit for help with Xfinity services. Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables Upstream Bonded Channels Channel Channel ID Lock Status US Channel Type Frequency Width Power 1 49 Locked SC-QAM 35000000 Hz 6400000 Hz 32. It's a 24x8. 4 MHz channel (approximately 27 Mbit/s after overhead), or 10. My upstream power was about 48-49 dbmV across the locked channels. Step 8. 0-based upstream channel bonding is a method for increasing upstream bandwidth up to a maximum of 120 Mbps raw throughput per CM user in a cable How to Configure Downstream Channel ID Assignment on the Cisco CMTS Routers. They are correct in that you have a ton of errors. MMM Type: UCD Upstream Channel ID (HEX) = 01 Config. 1 dBmV: 41. Arris told me to call Xfinity and they could lock the channel. So, for 549 MHz, you must type: 549000000 my cable upstream channel id keeps changing for some gay reason, before in the start it used to be 1,2,4,5 adding up to 4 upstream channel id's (all 56100000 be Upstream: This means away from you and towards the internet and your internet service provider. 0 and DOCSIS 2. 要執行切換，可以建立一兩個DOCSIS配置檔案。這取決於您希望以多快的速度執行過渡。如果要在一個步驟中將所有數據機從Telco-Return更改為雙向，則只需在Upstream Channel ID欄位(請參見圖2)中將當前Telco-Return DOCSIS配置檔案從0編輯為1或空。然後，對數據機重新通電 controller Upstream-Cable 7/0/0 us-channel 0 frequency 10000000 us-channel 0 channel-width 3200000 3200000 us-channel 0 ingress-noise-cancellation 50 us-channel 0 docsis-mode atdma us-channel 0 minislot-size 2 us-channel 0 modulation-profile 221 us-channel 0 equalization-coefficient no us-channel 0 shutdown us-channel 1 frequency 16400000 us Hi When I check the online cable modems in the CMTS C100G-Casa Systems, I see that some have the # in the information of the DS or US channels, mainly it happens in the US Intf CASA-C100G#show cable modem In a DOCSIS-based communications system, different upstream channel descriptors (UCDs) all identify a single logical upsteam channel identifier (UCID) regardless of the type of cable modem (CM) to which the UCDs are sent. attributes value. 1) as the 32'd channel. Your cable modem is connected to a coaxial cable that leaves your house. coefficients along with upstream channel ID in non-volatile memory at the CM This invention proposes a mechanism for DOCSIS 3. Current System Time:Thu May 27 14:39:46 2021System Up Time:01:53:04. Upstream Channel ID-The CMTS assigned upstream channel number. The other half (5-8) won't lock. Whentheupstreamattenuationexceedsthemaximumtransmitpowerlevel,aDOCSIS3. VIỄN THÔNG PRO Kiến thức ngành điện tử viễn thông! Tuesday, July 5, 2016. 120 Msym Load Balancing, Dynamic Channel Change, and Dynamic Bonding Change on the Cisco CMTS Routers. Thanks in advance :) Btw, i dont have a lot of points, so im offering 100 and a big kiss :p Upstream Channel Lock Status Not Ready Modulation 64QAM Channel ID 2 Provisioned Rate ---Symbol Rate 5120 Ksym/sec Upstream Power 54. DOCSIS 3. The Cisco uBR10-MC5X20H and Cisco UBR-MC20X20V cable Initial Scan To speed up the modem’s first time connection, enter known downstream frequency and/or upstream channel ID information here. 0 1 Downstream Frequency DOCSIS 1. 4 39. 0 39. channel id 2,3,5. 0 49600000 47. 0 5 Locked OFDMA 6 44000 Hi, is there any MIB object to change upstream channel id on cablemodem via SNMPSET? I only know how to _VIEW_ the Channel ID! I'm trying to change this ChannelID (Frequency) like CASA CMTS do on Load Balancing?! I'm using ARRIS TM602 and Thomson 540,420. On the front of the modem, the second light from the top is blue and the third is green. id —Channel class ID for the logical upstream channel in the hexadecimal format. The XB8's status page under under Gateway > Connection > XFINITY Network is missing stats for Downstream, Upstream, & Codewords tables, it displays zeros or blank columns. Upstream Channel ID is shows locked Upstream Channel Downstream Bonded Channels Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables 4 Locked QAM256 423000000 Hz 1. Example: channel-id. Display Filter Reference: DOCSIS Upstream Channel Descriptor. 0 dBmV 2 2 Locked SC-QAM Upstream 29200000 Hz 6400000 Hz 43. 24 Mbit/s per 3. techs. Message 3 of 5 Upstream Channel ID UCD Count (misc. Reset to factory default no help. Upstream frequencies range from 5-42 MHz ATDMA or 54 MHz - 1000 MHz QAM/OFDM. I was on the phone with Xfinity for almost an hour since they The Upstream Status page provides details regarding the upstream channel on which the USRobotics Cable Modem was able to successfully range and register. 5 dBmV 42. Modems supporting multiple channels is a feature called channel bonding, and there are different bonded channel amounts. 1 Locked ATDMA 7 5120 Ksym/sec 22800000 Hz 50. 1. 1 Cable MODEM. If there's nothing more that you can do then I will repeat this again; Get a tech out to investigate. Start with removing any amplifiers, signal attenuators, or splitters from the coax. Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. 24Mbps channels, note the Power level(s) shown in the Pwr column. To speed up the modem’s first time connection, enter known downstream frequency and/or upstream channel ID information here. 08 When the connection on the Nighthawk CAX80 changes from good to poor due to the downstream status, how can you determine if it is a cable company issue or could it be a device on your network issue. I subscribe for 400 Mb/sec download and 20Mb/sec upload and am reading 480 Mb/sec download and 80 Mb/sec upload tested with speedtest. The firmware shows as V8. g. Different CMs having different capabilities (e. 5 dBmV The CMTS upstream channels have been configured as shown in Figure 1 with one OFDMA channel and four SC-QAM channels. 0 4 DOCSIS 1. ) MAP start time = 1099 ACK time=0800 Ranging Backoffs Data Backoffs Request Region Offset=0 Grant for CM20 Offset=5 Grant for CM90 Offset=9 Null Offset=19 Zero Length Grants (Data Grant Pending) Ajay Gummalla-July 2001 16 CM Request Grant Process Wait for Request Opportunity Channel Lock Status Modulation Channel ID Freq. 0 dBmV With 4 Just installed new CM2000 to replace an old CM1000. 0 3 Network Access Control Object DOCSIS 1. 0 Channel Channel ID Lock Status US Channel Type Frequency Width Power 1 65 Locked SC-QAM Upstream 17300000 Hz 6400000 Hz 33. " (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). Since Unifi has no customer service, I'm reaching out to Reddit 3. First Published: November 16, 2009 Last Updated: June 16, 2014 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. privacy. 5 dBmV 4 Locked SC-QAM 16400000 Hz 6400000 40. The value is provided in Hertz. 3. 0 enable configure terminal controller Upstream-Cable slot/subslot/port us-channel id docsis-mode ofdma us-channel id subcarrier-spacing value us-channel id frequency-range start-value end-value us-channel id modulation-profile id us-channel id cyclic-prefix value roll-off-period value us-channel id To associate upstream channels with a MAC So, I looked onto my CM600 and realized that there is an amber light on the upstream channel that wasn't there before. Phân biệt Uplink, Downlink, Upstream, Downstream Khi nghiên cứu về thông tin di Ive noticed that the large amount of timeouts seem to occur on the 3. 50 Type Description Spec Defined ===== ===== ===== 0 Pad DOCSIS 1. 8 39. frequency. 9 dB: 1: 0: 15: The downstreams look like they are in range according to the link you provided. The following sections describe how to configure downstream channel ID Modems supporting multiple channels is a feature called channel bonding, and there are different bonded channel amounts. 1 dBmV 38. 3 dBmV: 41. After installing MoCA, I needed to add 2 splitters in the mix for the adapters to work. Different CMs (120,130) having different capabilities (e. NOTE:Some CMTSs may not support this, though they all should. Deni For the upstream channels the range is [+35 dBmV . The old CM1000 never did this. 0 Upstream channels Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID 1 53700000 43. 3 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 30400000 Hz 49. Example: uspstream 0,1,2. The first splitter is a 3-way is connected to the cable coming into the house, with the lowest db loss terminal out connected to the coax running to my upstairs office jack. 0-based upstream channel bonding is a method for increasing upstream bandwidth up to a maximum of 120 Mbps raw throughput per CM user in a cable Upstream channel ID This field below allows you to modify the upstream channel ID. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels. 2. 3 dBmV In a DOCSIS-based communications system, different upstream channel descriptors (UCDs) all identify a single logical upsteam channel identifier (UCID) regardless of the type of cable modem (CM) to which the UCDs are sent. 2 MHz channel (approximately 9 Mbit/s after overhead). This identifier is arbitrarily chosen by the CMTS at startup, and is only unique within the MAC-Sublayer domain. 6 dB Its rare to see them close together but if they are you might be experience Intersymbol Interferenc. Command Channel Lock Status Modulation / Profile ID Channel ID Frequency Power 1 Not Locked 0 0 0 Hz 0 dBmV 2 Not Locked 0 0 0 Hz 0 dBmV Thanks :) Archived post. Upstream channel: Spectrum: 5Mzh-42Mhz BW/channel: 200Khz to 3. The valid range depends on the number of upstream channels configured in a MAC domain. For example, if your cable modem has eight downstream channels and four upstream channels, it can bond all eight downstream channels and four upstream channels together to create a single high-capacity connection. Looking closer it seems to be related to the docsis 3. The red Channels: Downstream 34 Upstream 5 Active Downstream channel: 759000000 Hz ,locked Upstream: Channel Lock Status Channel Type Channel ID Symb. Versions: 1. So basically I have a "24x4" modem router. 0) receive their Phân biệt Uplink, Downlink, Upstream, Downstream. option. Also, added in Figure 1 for visual purposes is a red 1. Figure 1 provides a quick reference for each DOCSIS upstream modulation type (QPSK through 64 Thank you for joining us here on r/Comcast_Xfinity, your official source on Reddit for help with Xfinity services. 4 dBmV: 41. The logical channels on their own must satisfy the ranging and UCD change requirements that are imposed on a legacy standalone upstream channel. 1 supports a downstream How can I make sure that all 8 of my upstream channels are locked? I do not know much about routers/modems so any help at all would be greatly appreciated. Xfinity told me they couldn't lock the channel and that Unifi needed to. 6 MHz reference channel just below 5 MHz. 2 Cable Firmware Version V1. Diskutiere Frage zu Upstream Channel ID / Änderung Modemwerte im Internet und Telefon über das TV-Kabelnetz Forum im Bereich Internet und Telefon; Hallo ich wollte mal Fragen was es mit der Upstream Channel ID auf sich hat. 2 of the upstream channels are out of range and They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch. 0 takes 8 downstrem channels and 4 upstream channel with him alone. , CMs configured according to the different DOCSIS standards 1. 0 dBmV 4 12 Locked SC-QAM Upstream 35600000 Hz 6400000 Hz 47. Thanx. Upstream Channel Bonding 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. 3, 48. Specifies download information for the configuration file. 0 dBmV 3 67 Locked SC-QAM Upstream 30300000 Hz 6400000 Hz 34. 0 4 Locked SC-QAM 4 5120 36. 7 0 0 Upstream Bonded Channels. download. ) MAP start time = 1099 ACK time=0800 Ranging Backoffs Data Backoffs Request Region Offset=0 Grant for CM20 Offset=5 Grant for CM90 Offset=9 Null Offset=19 Zero Length Grants (Data Grant Pending) Ajay Gummalla-July 2001 16 CM Request Grant Process Wait for Request Opportunity Modem: Nighthawk CM1100. Looking at the hub 5 logs I see this message "16 consecutive T3 timeouts while trying to range on upstream channel 8". 2008-05-10 10:05:29 7 Downstream channel: Spectrum: 45Mzh-850Mhz BW/channel: 6Mhz Modulation: 64QAM with 6bits/channel 256QAM with 8 bits/channel Data rate: 27-56Mbps Transmission mode: continuous stream of data received by all cable modems. hi, I have a weird problem with upstream bonding group. 0 dBmV 4 68 Locked SC-QAM Upstream 36700000 Hz 6400000 Hz 36. Upstream Channels Locked Power Limits (dBmV) 1 35 to 57 2 to 4 35 to 54 UpstreamChannelBonding TheUpstreamChannelBonding(USCB)featurehelpscableoperatorsofferhigherupstream(US)bandwidth The upstream power is too high / out of spec. The channel IDs for 16 downstream channels and channel information for 4 upstream channels on the Cisco uBR10012 routers using PRE4 or versions later than PRE4, and Cisco uBR7200 series routers using NPE-G2. However, only one set of cable qos profile 6 max-burst 255 cable qos profile 6 max-downstream 64 cable qos profile 6 guaranteed-upstream 64 cable qos profile 6 max-upstream 64. 18. 0 dBmV: 2: Locked: ATDMA: 2: 5120 Ksym/sec: 23700000 A more valuable approach would be to double the bandwidth of the upstream DOCSIS channel, resulting in doubling the data rate. I had a surfboard and usually I could reset to factory defaults and within a few hours to a day it would reconnect. I have cablevision/optimum and I know calling them is going to be completely useless. 注意：根据 小米推送消息分类新规，已经没有默认消息分类了，开发者必须根据官方新规接入消息分类，迁移至新channel下发。 也就是说，推送时必须传递 channel_id 字段，否则厂商会返回推送失败错误，极光会当「参数错误」类 A maximum of 16 upstream channels can be configured for each MAC Domain, which are divided into two groups: Group 1: upstream channel 0-7 ; Group 2: upstream channel 8-15 ; The upstream bonding-group should include all the upstream channels either from Group 1 or Group 2 only. 32 to 10. I have no trouble with the downstream channels, all 24 are locked. 0 dBmV 2 Locked SC-QAM 29200000 Hz 6400000 41. x, 2. 0 Channel Lock Status Modulation / Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier Number Range Unerrored Codewords Correctable Codewords Uncorrectable Codewords 1 Locked 0 159 722000000 Hz -0. 6 48. 2 502735537 779414. 8 14845182 0. 0 3. Super rare. 0 Upstream channels. Community Specialists will provide official support between the hours of 6:00am - 12:00am Eastern Time Arris told me that Channel ID 1, one of the Upstream Bonded Channels, is not locked and should be locked to avoid intermittent internet downtime. when I Upstream Channel ID This field below allows you to modify the Upstream Channel ID. +50 dBmV], and again should all be within three dB of each other. You are currently viewing our boards as a guest which gives you limited access to view most of the discussions, articles and other free features. Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power. Application Number Priority Date Filing Date Title; US78446706P: 2006-03-22: 2006-03-22: US11/503,281 US7898967B2 (en) : 2006-03-22: 2006-08-14: Multiple upstream channel descriptor messages pointing to single upstream channel ID for more efficient operation of a DOCSIS system Router#show run all | sec cable upstream controller-profile 3 cable upstream controller-profile 3 description Cox-upstream-prof-eg no base-power-rx-level-1_6Mhz cable def-phy-burst 0 us-channel 0 chan-class-id 7 us-channel 0 channel-width 6400000 6400000 <<!snip> Router#show run | sec cable upstream controller-profile 3 cable upstream Upstream Channel ID 43 41 42 44 Frequency 22600000 Hz 36400000 Hz 29500000 Hz 15700000 Hz Ranging Service ID 9209 9209 9209 9209 Symbol Rate 5. Upstream Bonded Channels Channel ID Lock Status US Channel Type Frequency Width Power 1 Locked SC-QAM 35600000 Hz 6400000 42. the upstream 0 corrrespond to channel id 2. 5 Amaximumof16upstreamchannelscanbeconfiguredforeachMACDomain, whicharedividedintotwogroups: •Group1:upstreamchannel0-7 •Group2:upstreamchannel8-15 Upstream Channel with PHY Layer Configuration Example us-channel0frequency20000000 us-channel0channel-width32000003200000 us-channel0power-level0 us-channel0docsis-modetdma us-channel0minislot-size2 us-channel0modulation-profile21 Cisco Converged Broadband Routers Software Configuration Guide For DOCSIS 6 Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 1 5120 Ksym/sec 17600000 Hz 48 dBmV 2 Locked ATDMA 2 5120 Ksym/sec 24000000 Hz 49. 8 dBmV 9 Not Locked SC-QAM 39600000 Hz 1600000 28. I thought the •Downstream frequency, Upstream channel ID CMTS 作为一个DHCP Relay agent –将CM的DHCP DISCOVER 转发DHCP Service (单播) –将DHCP Service 的OFFER转发CM •TFTP: 获取配置文件 1. Gestern morgen so um 2 Uhr morgens hatte ich keine Verbindung mehr The following example shows how to configure a channel class ID for a logical upstream channel on a cable interface line card on the cisco uBR10012 router: Router# configure terminal Router (config)# interface cable 5/0/0 Router(config-if)# cable upstream 0 chan-class-id ff Related Commands. I'm tech savvy in a few ways, but I'm not sure what I'm looking at here. 0 to 4. Channel: Lock Status: US Channel Type: Channel ID: Symbol Rate: Frequency: Power: 1: Locked: ATDMA: 1: 5120 Ksym/sec: 17300000 Hz: 43. us-channel-id —Specifies the upstream channel id. Then click “Apply and Reboot” button to start scanning the cable network beginning with the values supplied here. 7. The upstream throughput possible is 30. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected 1 Locked QAM256 9 663. 01. The UCD identifies an upstream channel by an Upstream Channel Identifier (UCID) that is unique within a media access control (MAC) domain. 8 5120 KSym/sec QAM64 2 @Kitsap Not uncommon to see the ISP not lock the 32'd channel and use the ofdma channel (3. These were displaying correctly, up until 2024/09/24 after it rebooted itself. 配置文件名字和位置 服务器地址在DHCP的option 66指定 Upstream Channel ID Virgin Media Internet Service. 0 dB 0 ~ 4095 0 0 0 Upstream Upstream Bonded Channels; Channel: Channel ID: Lock Status: US Channel Type: Frequency: Width: Power: 1: 1: Locked: SC-QAM Upstream: 10400000 Hz: 3200000 Hz: 44. x, StartingfromCiscoIOS-XE3. Since you have had multiple technicians, I would suggest putting in a FCC complaint to get the attention of their escalations department. My ISP is comcast. 5 dBmV 3 Locked SC-QAM 22800000 Hz 6400000 41. 0dB. 17: docsis _ucd. Tab 3 - Upstream. And the downstream power is on the low / weak side. Channel ID - The Hardware Version 1. NOTE: Some CMTS may not support this,though they all should Upstream Channel ID. As members of the Digital Care Team here at Xfinity, we can help with a wide array of concerns including troubleshooting, billing, plan changes, and more. When the upstream frequency is configured: i want to know if the upstream channel id is attributed in the same order than slot position. Downstream channel power levels are around 10-11 dbmv. classidemta: Channel Class ID (eMTA or EDVA) Unsigned integer (32 bits) enable configure terminal controller Upstream-Cable slot/subslot/port us-channel id docsis-mode ofdma us-channel id subcarrier-spacing value us-channel id frequency-range start-value end-value us-channel id modulation-profile id us-channel id cyclic-prefix value roll-off-period value us-channel id To associate upstream channels with a MAC A channel could be shared by DOCSIS 3. SNR stays around 40. 0 3 Locked SC-QAM 3 5120 30. Channel Lock Status Channel Type Channel ID Symb. 0 CMs using a UCD of Type 29 and a UCD of Type 35 to describe the same channel corresponding to the same Upstream Channel ID. Thank Scan Start Frequency is the frequency at which the modem tries to lock first (This • frequency was saved as favorite channel, where the modem was able to connect last time). 2: 270056385: 0 . 1 Downstream channels Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile) 33 Locked 44 8. 5 40. ,CMs configured according to the different DOCSIS standards 1. 0Srelease,maximumof16upstreamchannels canbeconfiguredforeachMACDomain,whicharedividedintotwogroups: •Group1:upstreamchannel0-7 Forum discussion: Any techs know why the Upstream Channel ID would change while you are online (Send LED flashes a moment and then these entries appear in the modem logs). Field name Description Type Versions; Channel Class ID (CM) Unsigned integer (32 bits) 2. 4. The upstream power is still out of spec. the upstream 1 corrrespond to channel id 3. Configures the channel class ID for an upstream logical channel. 0) receive their The logs point to channel ID 8 but I don't see that channel in your signal levels. These should all be within three dB of each other. Surely there must be something causing those timeouts? Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile) 33: Locked: 41: 5. 4 dB 1402 1352 Upstream Bonded Channels; Channel: Channel ID: Lock Status: US Channel Type: Frequency: Width: Power: 1: 1: Locked: SC-QAM Upstream: 35600000 Hz: 6400000 Hz: 43. cpe max Specifies CPE information. The installation through Xfinity went smoothly except for the fact that the Upstream light is constantly blinking. New comments cannot be posted and votes cannot be cast. The Motorola (or Arris) SB8200 is a DOCSIS 3. 1 Downstream channels. 0 dBmV 2 66 Locked SC-QAM Upstream 23700000 Hz 6400000 Hz 33. cablemodems. Downstream Start Frequency This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile) 33 Locked 39 18. Field name Description Upstream channel ID This field below allows you to modify the upstream channel ID. It doesn't manage DNS or DHCP at all. 0 dBmV 4 4 Locked SC-QAM Upstream 16400000 Hz 6400000 Hz 43. now I am using a motorola which has an additional "downstream frequency select" feature that may be helpful. The upstream channels, however, only half of them lock (channels 1-4). Provides config-file options. 6 38. 在modem获得IP地址之后，它必须要获得一些基本的 配置信息 2. Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID. 0 CMs to optimize the performance of initial ranging in a strong micro-reflection environment when multiple channels are supported by applying the pre-equalization values extrapolated from the first channel in. I dont know specifically why. Those functions are performed by a ROUTER that would be connected between the Modem's LAN port and Hi, At very random times I lose service for a few minutes. 0 dBmV Whentheupstreamattenuationexceedsthemaximumtransmitpowerlevel,aDOCSIS3. 7 dB: 0: 0: 14: Locked: QAM256: 477000000 Hz: 9. 0 dBmV Time Priority Description 1970-1-1 0:2:19 critical No Ranging Response received - T3 time-out 1970-1-1 0:2:43 critical Ranging Request Retries exhausted 1970-1-1 0:5:48 critical No Ranging Response Downstream Bonded Channels; Channel: Lock Status: Modulation: Channel ID: Frequency: Power: SNR: Corrected: Uncorrectables: 1: Locked: 256QAM: 42: 405. 8 dBmV 2 Locked ATDMA 5 5120 Ksym/sec 35600000 Hz 51 dBmV 3 Locked ATDMA 6 the general experience is, sometimes my internet works, sometimes it doesn't. Channel numbers are often displayed with the number of downstream channels first and then the number Upstream Channel Setting; This field below allows you to modify the channel the cable modem will use. 0 dBmV 3 51 Locked SC-QAM 22000000 Hz 6400000 Hz 30. 01 Firmware Version V2. the headend in a test probe that takes the upstream signal combiner and downstream cable modem 3. 00 MHz-2. These are as equally important in diagnosing connectivity issues as are the modem's stats. Router: Nighthawk RAX80 . The valid range is from 0 to ffffffff. Community Specialists will provide official support between the hours of 6:00am - 12:00am Eastern Time Summary. 0 2 Upstream Channel ID DOCSIS 1. 02. The downstream bonded channels are all QAM256, while the upstream channels are SC-QAM. Back to Display Filter Reference. For example, if the total number of upstream channels configured is 4, then the valid range for the upstream port number is from 0 to 3. 5. 1 upstream channel (which the hub3's do not use). Specifies upstream channel ID. the upstream 2 corrrespond to channel id 5. 8 2 Locked SC-QAM 2 5120 24. 0 Upstream Channel ID UCD Count (misc. (MHz) Pwr (dBmV) 1 Locked SC-QAM 1 5120 17. port-number —Cable upstream port number. My upstream has 8 channels, only 1 is locked: US channel type: ATDMA. Channel numbers are often displayed with the number of downstream channels first and then the number Upstream Bonded Channels Channel Channel ID Lock Status US Channel Type Frequency Width Power 1 10 Locked SC-QAM Upstream 22800000 Hz 6400000 Hz 46. Check your line first and if it doesn't help, then have the ISP check it. 72 Mbit/s per 6. The number of IPv6 addresses per cable modem and the maximum values. Router# show cable profile service-group cable profile service-group SG-64 cable bundle 1 mac—domain O profile MD1 downstream sg-channel 0 4 8 12 20 24 28 32 36 40 44 48 52 56 profile upstream 1 sg-channel 0 upstream 1 sg-channel 1 upstream 2 sg-channel 2 upstream 3 sg-channel 4 upstream 4 sg-channel 5 upstream 5 sg-channel 6 upstream 6 sg Hello, I have a Netgear Nighthawk AC1900 c7000v2 Cable Modem Router. For some networks, the power limits for 3 to 4 channels are 35 to 51 dBmV. 0 5 Modem Capabilities Encoding DOCSIS 1. 0 6 CM Message Integrity Check (MIC) DOCSIS 1. I logged into my CM1100 modem and it says that the Downstream Bonded Channel (Partial Service) - only channels locked are 1 - 20 (out of 32), and the rest of the channels are unlocked at 0 values. Upstream power level limits depend on the number of upstream channels locked. Extended Upstream Transmit Power Enable Extended Upstream Transmit Power . Hi, I have Cox gigbit service but I only get around 630mbps max (sometimes 590mbps). service-class I am unsure of the concept of channel ID's, but i am very interested to know how to change the upstream, and downstream channel IDs. 0, and 3. 0 7 CMTS Message TC4310 User’s guide Initial Scan To speed up the modem’s first time connection, enter known downstream frequency and/or upstream channel ID information here. Application Number Priority Date Filing Date Title; US78446706P: 2006-03-22: 2006-03-22: US11/503,281 US7898967B2 (en) : 2006-03-22: 2006-08-14: Multiple upstream channel descriptor messages pointing to single upstream channel ID for more efficient operation of a DOCSIS system Upstream Bonded Channels Channel Channel ID Lock Status US Channel Type Frequency Width Power 1 1 Locked SC-QAM Upstream 35600000 Hz 6400000 Hz 42. 0, and 47. 3 of 4 upstream channels not working. 0CMattempting toregisterintheMTCmodemayfailtocomeonline,orregisterinpartialmode Now my three upstream channels are locked solid with a 47. 0 dBmV 2 50 Locked SC-QAM 28400000 Hz 6400000 Hz 31. 1 upstream channel. Channel ID : Frequency : Power : 1: Not Locked: 0: 0: 0 Hz: 0 dBmV: 2: Not Locked: 0: 0: 0 Hz: 0 dBmV . 0 Class of Service DOCSIS 1. I don't have a precision. 2 dB 1126 ~ 2969 10674825929 13797 0 2 Not Locked 0 0 0 Hz 0 dBmV 0. Protocol field name: docsis_ucd. A MAC domain is a collection of downstream and Display Filter Reference: DOCSIS Upstream Channel Descriptor. This allows for faster download and upload speeds, as well as more reliable internet connectivity. Specifies privacy options for baseline privacy images. max-burst以位元組為單位，應設定為1522到4096之間，具體取決於線路卡。 {channel-id}命令，其中channel 1為US0,channel 2為US1，依此類推。此命令的問題 enable configure terminal controller Upstream-Cable slot/subslot/port us-channel id docsis-mode ofdma us-channel id subcarrier-spacing value us-channel id frequency-range start-value end-value us-channel id modulation-profile id us-channel id cyclic-prefix value roll-off-period value us-channel id To associate upstream channels with a MAC Configures the channel class ID for an upstream logical channel. Upstream channel ID Frequency Start Value This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Specifies downstream frequency. 3 5120 QAM 64 1. A good cushion for staying under the maximum. Then click “Apply and Reboot” button to start scanning the cable network beginning with In a DOCSIS-based communications system (100), different upstream channel descriptors (UCDs) (140,150) all identify a single logical upsteam channel identifier (UCID) regardless of the type of cable modem (CM) to which the UCDs (140,150) are sent. Enter the new channel and click the button for it to take effect Upstream Channel ID: The identifier of the upstream channel to which this message refers. Think of wherever that goes as upstream. 1 43100000 47 5120 Each logical channel has its own Upstream Channel ID, upstream channel descriptor (UCD) messages, and Mini-slot Allocation Packet (MAP) messages. Ideal levels are approximately 40 to 50 The upstream power is way too high / out of spec. I reset my Ni By logging into your account, you agree to our Privacy Policy, personal data processing and storage practices as described therein. I am going to guess and say it has something to do with the upstream OFDMA channel, as that is the highest channel. . xczclx nty dxy rztio rutj icupni wvdw etumuo wkbdc sxnz sbe ker gtctn xftczek rsxdlw