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For easy testing on a Cisco ubr7225 with 1x ubr mc88v card  (DOCSIS 3.0) in slot 1/0 add the following template. This will create on 8xDS and 8xUS as one group for testing.

  1. Connect via ssh to the CMTS ip
  2. add the following lines in config mode (enter: config terminal and copy this code sectional):
cable load-balance docsis-group 1
 downstream Integrated-Cable 1/0 rf-channel 0-3
 downstream Integrated-Cable 1/1 rf-channel 0-3
 upstream Cable1/0 0-7
 init-tech-list 1-4 ucc
!
controller Integrated-Cable 1/0
 rf-channel 0 cable downstream channel-id 1
 rf-channel 0 frequency 306000000 annex A modulation 256qam interleave 12
 rf-channel 0 rf-power 48.0
 no rf-channel 0 rf-shutdown
 rf-channel 1 cable downstream channel-id 2
 rf-channel 1 frequency 314000000 annex A modulation 256qam interleave 12
 rf-channel 1 rf-power 48.0
 no rf-channel 1 rf-shutdown
 rf-channel 2 cable downstream channel-id 3
 rf-channel 2 frequency 322000000 annex A modulation 256qam interleave 12
 rf-channel 2 rf-power 48.0
 no rf-channel 2 rf-shutdown
 rf-channel 3 cable downstream channel-id 4
 rf-channel 3 frequency 330000000 annex A modulation 256qam interleave 12
 rf-channel 3 rf-power 48.0
 no rf-channel 3 rf-shutdown
!
controller Integrated-Cable 1/1
 rf-channel 0 cable downstream channel-id 5
 rf-channel 0 frequency 338000000 annex A modulation 256qam interleave 12
 rf-channel 0 rf-power 48.0
 no rf-channel 0 rf-shutdown
 rf-channel 1 cable downstream channel-id 6
 rf-channel 1 frequency 346000000 annex A modulation 256qam interleave 12
 rf-channel 1 rf-power 48.0
 no rf-channel 1 rf-shutdown
 rf-channel 2 cable downstream channel-id 7
 rf-channel 2 frequency 354000000 annex A modulation 256qam interleave 12
 rf-channel 2 rf-power 48.0
 no rf-channel 2 rf-shutdown
 rf-channel 3 cable downstream channel-id 8
 rf-channel 3 frequency 362000000 annex A modulation 256qam interleave 12
 rf-channel 3 rf-power 48.0
 no rf-channel 3 rf-shutdown
!
interface Cable1/0
 downstream Integrated-Cable 1/0 rf-channel 0-3
 downstream Integrated-Cable 1/1 rf-channel 0-3
 cable tftp-enforce mark-only
 cable mtc-mode
 cable cm-status enable 3 6-10
 cable shared-secret 7 02222B78382F3C
 cable dynamic-secret reject
 no cable packet-cache
 cable bundle 1
 cable upstream max-ports 8
 cable upstream bonding-group 1
  upstream 0
  upstream 1
  upstream 2
  upstream 3
  attributes 80000000
 cable upstream bonding-group 2
  upstream 4
  upstream 5
  upstream 6
  upstream 7
  attributes 80000000
 cable upstream bonding-group 3
  upstream 0
  upstream 1
  upstream 2
  upstream 3
  upstream 4
  upstream 5
  upstream 6
  upstream 7
  attributes 80000000
 cable upstream 0 connector 0
 cable upstream 0 frequency 12600000
 cable upstream 0 channel-width 6400000 6400000
 cable upstream 0 description Cluster Test - 0
 cable upstream 0 docsis-mode atdma
 cable upstream 0 minislot-size 1
 cable upstream 0 range-backoff 3 6
 cable upstream 0 modulation-profile 221
 cable upstream 0 equalization-coefficient
 no cable upstream 0 shutdown
 cable upstream 1 connector 1
 cable upstream 1 frequency 19000000
 cable upstream 1 channel-width 6400000 6400000
 cable upstream 1 description Cluster Test - 1
 cable upstream 1 docsis-mode atdma
 cable upstream 1 minislot-size 1
 cable upstream 1 range-backoff 3 6
 cable upstream 1 modulation-profile 221
 cable upstream 1 equalization-coefficient
 no cable upstream 1 shutdown
 cable upstream 2 connector 2
 cable upstream 2 frequency 25400000
 cable upstream 2 channel-width 6400000 6400000
 cable upstream 2 description Cluster Test - 2
 cable upstream 2 docsis-mode atdma
 cable upstream 2 minislot-size 1
 cable upstream 2 range-backoff 3 6
 cable upstream 2 modulation-profile 221
 cable upstream 2 equalization-coefficient
 no cable upstream 2 shutdown
 cable upstream 3 connector 3
 cable upstream 3 frequency 31800000
 cable upstream 3 channel-width 6400000 6400000
 cable upstream 3 description Cluster Test - 3
 cable upstream 3 docsis-mode atdma
 cable upstream 3 minislot-size 1
 cable upstream 3 range-backoff 3 6
 cable upstream 3 modulation-profile 221
 cable upstream 3 equalization-coefficient
 no cable upstream 3 shutdown
 cable upstream 4 connector 4
 cable upstream 4 frequency 38200000
 cable upstream 4 channel-width 6400000 6400000
 cable upstream 4 description Cluster Test - 4
 cable upstream 4 docsis-mode atdma
 cable upstream 4 minislot-size 1
 cable upstream 4 range-backoff 3 6
 cable upstream 4 modulation-profile 221
 cable upstream 4 equalization-coefficient
 no cable upstream 4 shutdown
 cable upstream 5 connector 5
 cable upstream 5 frequency 44600000
 cable upstream 5 channel-width 6400000 6400000
 cable upstream 5 description Cluster Test - 5
 cable upstream 5 docsis-mode atdma
 cable upstream 5 minislot-size 1
 cable upstream 5 range-backoff 3 6
 cable upstream 5 modulation-profile 221
 cable upstream 5 equalization-coefficient
 no cable upstream 5 shutdown
 cable upstream 6 connector 6
 cable upstream 6 frequency 51000000
 cable upstream 6 channel-width 6400000 6400000
 cable upstream 6 description Cluster Test - 6
 cable upstream 6 docsis-mode atdma
 cable upstream 6 minislot-size 1
 cable upstream 6 range-backoff 3 6
 cable upstream 6 modulation-profile 221
 cable upstream 6 equalization-coefficient
 no cable upstream 6 shutdown
 cable upstream 7 connector 7
 cable upstream 7 frequency 57400000
 cable upstream 7 channel-width 6400000 6400000
 cable upstream 7 description Cluster Test - 7
 cable upstream 7 docsis-mode atdma
 cable upstream 7 minislot-size 1
 cable upstream 7 range-backoff 3 6
 cable upstream 7 modulation-profile 221
 cable upstream 7 equalization-coefficient
 no cable upstream 7 shutdown
 cable privacy mandatory
 fair-queue 256 512 1000
!
interface Wideband-Cable1/0:0
 cable bundle 1
 cable rf-channel 0 bandwidth-percent 1 remaining ratio 100
 cable rf-channel 1 bandwidth-percent 1 remaining ratio 100
 cable rf-channel 2 bandwidth-percent 1 remaining ratio 100
 cable rf-channel 3 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 0 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 1 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 2 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 3 bandwidth-percent 1 remaining ratio 100
!
interface Wideband-Cable1/0:1
 cable bundle 1
 cable rf-channel 0 bandwidth-percent 1 remaining ratio 100
 cable rf-channel 1 bandwidth-percent 1 remaining ratio 100
 cable rf-channel 2 bandwidth-percent 1 remaining ratio 100
 cable rf-channel 3 bandwidth-percent 1 remaining ratio 100
!
interface Wideband-Cable1/0:2
 cable bundle 1
 cable rf-channel controller 1 channel 0 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 1 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 2 bandwidth-percent 1 remaining ratio 100
 cable rf-channel controller 1 channel 3 bandwidth-percent 1 remaining ratio 100
!
interface Integrated-Cable1/0:0
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
interface Integrated-Cable1/0:1
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
interface Integrated-Cable1/0:2
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
interface Integrated-Cable1/0:3
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
interface Cable1/1
 shutdown
 no cable packet-cache
 cable upstream max-ports 0
!
interface Integrated-Cable1/1:0
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
interface Integrated-Cable1/1:1
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!         
interface Integrated-Cable1/1:2
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
interface Integrated-Cable1/1:3
 cable bundle 1
 cable rf-bandwidth-percent 1 remaining ratio 100
!
cable fiber-node 1
 downstream Integrated-Cable 1/0 rf-channel 0-3
 downstream Integrated-Cable 1/1 rf-channel 0-3
 upstream Cable 1 connector 0-7

on a Cisco ubr7225 with 1x mc88v card in slot 1/0



ubr mc88v DOCSIS 3.0 card with 8xDownstreams and 8xUpstreams

Most Popular Post
Ole Ernst on 9 Sep 2019 - Likes 1

Hi, if you are talking about the UBR-MC88V linecard, then yes you need to connect both physical DS ports to your cable plant.


12 Comments

  1. I want to upgrade our network from 4 to 8 DS - channels.

    Do i need to connect both physical DS-Interfaces to the Cable-System?

  2. Hi, if you are talking about the UBR-MC88V linecard, then yes you need to connect both physical DS ports to your cable plant.

  3. Ok, thank your for your information.

    I will check this in our plant today. 


    I have some problems with higher DS- speeds with are not working for our customers.

    I build and tested the new config-files for the cablemodems. There was no problem with DS speeds of 200Mbit/s

  4. when troobleshooting i get the following:

    ubr7200#show cable mac-domain cable 1/0 cgd-associations
    CGD Host Resource DS Channels Upstreams (AllUS) Active DS
    Ca1/0 1/0 0-3 0-3 Yes
    0-3
    1/1 0-3 0-3 Yes


    and with:

     #show controllers cabel 1/0 

    Local total modems 0, modems active 0, total DS flows 1
    NB DS In1/0:0, STATE: UP
    Frequency 194.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 400, Load Percent: 0
    Channel ID: 1, US MAP: 0x000F
    Total modems: 70, modems active : 69, total DS flows: 71
    NB DS In1/0:1, STATE: UP
    Frequency 202.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 400, Load Percent: 0
    Channel ID: 2, US MAP: 0x000F
    Total modems: 0, modems active : 0, total DS flows: 1
    NB DS In1/0:2, STATE: UP
    Frequency 210.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 400, Load Percent: 0
    Channel ID: 3, US MAP: 0x000F
    Total modems: 1, modems active : 1, total DS flows: 2
    NB DS In1/0:3, STATE: UP
    Frequency 218.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 400, Load Percent: 0
    Channel ID: 4, US MAP: 0x000F
    Total modems: 0, modems active : 0, total DS flows: 1
    NB DS In1/1:0, STATE: DOWN
    Frequency 226.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 0, Load Percent: 0
    Channel ID: 5, US MAP: 0x000F
    Total modems: 0, modems active : 0, total DS flows: 1
    NB DS In1/1:1, STATE: DOWN
    Frequency 234.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 0, Load Percent: 0
    Channel ID: 6, US MAP: 0x000F
    Total modems: 0, modems active : 0, total DS flows: 1
    NB DS In1/1:2, STATE: DOWN
    Frequency 242.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 0, Load Percent: 0
    Channel ID: 7, US MAP: 0x000F
    Total modems: 0, modems active : 0, total DS flows: 1
    NB DS In1/1:3, STATE: DOWN
    Frequency 250.0000 MHz 256-QAM, ANNEX A, R/S Interleave I=12, J=17
    Network Delay 0 (usec)
    Bandwidth (Kbps): 0, Load Percent: 0
    Channel ID: 8, US MAP: 0x000F
    Total modems: 0, modems active : 0, total DS flows: 1


    Why are the last 4 Frequencies down ?

  5. is this because i havent configured the following part:


    !
    interface Cable1/1
     shutdown
     no cable packet-cache
     cable upstream max-ports 0
    !
    interface Integrated-Cable1/1:0
     cable bundle 1
     cable rf-bandwidth-percent 1 remaining ratio 100
    !
    interface Integrated-Cable1/1:1
     cable bundle 1
     cable rf-bandwidth-percent 1 remaining ratio 100
    !        
    interface Integrated-Cable1/1:2
     cable bundle 1
     cable rf-bandwidth-percent 1 remaining ratio 100
    !
    interface Integrated-Cable1/1:3
     cable bundle 1
     cable rf-bandwidth-percent 1 remaining ratio 100
    !

  6. Yes, you must configure the Integrated-Cable1/1:0-3 interfaces and also adjust the fiber-node (+ load-balance group) accordingly.

  7. I did everything in this config-example above except the part with "interface Integrated-Cable1/1"


    Thanks for your help

  8. The fibre-node is configured.


    What do you mean with "load-balance group" ?

  9. I added the load-balance group at the very top of the code section.

  10. Thank you for the config of the load-balance group.


    What happens why i use this in my config.

    Does one half of the CableModems use Cable 1/0 and the other half uses Cable 1/1?

  11. Is the load-balance group important for sharing Cable1/0 and Cable1/1 ?

    Without it looks like only Cable 1/0 ist used.