I have a ubr7246 with MC88V i have been working to replace our old Cisco CMTS with this unit.
I can get D2 modems to connect and dload at 30mbs and upload at 2mbs.
I have D3 modems using Motos 6141 8x4 and i get 50mbs down and 11 up.
I have the D3 modems config file set to 120 down and 30 up. I am looking for suggestions on my config to get me on track.
controller Integrated-Cable 5/0
rf-channel 0 cable downstream channel-id 17
rf-channel 0 frequency 789000000 annex B modulation 256qam interleave 32
rf-channel 0 rf-power 52.0
no rf-channel 0 rf-shutdown
rf-channel 1 cable downstream channel-id 18
rf-channel 1 frequency 795000000 annex B modulation 256qam interleave 32
rf-channel 1 rf-power 52.0
no rf-channel 1 rf-shutdown
rf-channel 2 cable downstream channel-id 19
rf-channel 2 frequency 801000000 annex B modulation 256qam interleave 32
rf-channel 2 rf-power 52.0
no rf-channel 2 rf-shutdown
rf-channel 3 cable downstream channel-id 20
rf-channel 3 frequency 807000000 annex B modulation 256qam interleave 32
rf-channel 3 rf-power 52.0
no rf-channel 3 rf-shutdown
!
controller Integrated-Cable 5/1
rf-channel 0 cable downstream channel-id 21
rf-channel 0 frequency 813000000 annex B modulation 256qam interleave 32
rf-channel 0 rf-power 52.0
no rf-channel 0 rf-shutdown
rf-channel 1 cable downstream channel-id 22
rf-channel 1 frequency 819000000 annex B modulation 256qam interleave 32
rf-channel 1 rf-power 52.0
no rf-channel 1 rf-shutdown
rf-channel 2 cable downstream channel-id 23
rf-channel 2 frequency 825000000 annex B modulation 256qam interleave 32
rf-channel 2 rf-power 52.0
no rf-channel 2 rf-shutdown
rf-channel 3 cable downstream channel-id 24
rf-channel 3 frequency 831000000 annex B modulation 256qam interleave 32
rf-channel 3 rf-power 52.0
no rf-channel 3 rf-shutdown
!
interface Cable5/0
downstream Integrated-Cable 5/0 rf-channel 0-3
cable mtc-mode
no cable packet-cache
cable bundle 1
cable upstream max-ports 4
cable upstream bonding-group 1
upstream 0
upstream 1
upstream 2
upstream 3
attributes 80000000
cable upstream 0 connector 0
cable upstream 0 frequency 20000000
cable upstream 0 channel-width 3200000 3200000
cable upstream 0 docsis-mode scdma
cable upstream 0 spreading-interval 16
cable upstream 0 codes-per-minislot 4
cable upstream 0 active-codes 112
cable upstream 0 range-backoff 3 6
cable upstream 0 modulation-profile 321
no cable upstream 0 shutdown
cable upstream 1 connector 1
cable upstream 1 frequency 24000000
cable upstream 1 channel-width 3200000 3200000
cable upstream 1 docsis-mode scdma
cable upstream 1 spreading-interval 16
cable upstream 1 codes-per-minislot 4
cable upstream 1 active-codes 112
cable upstream 1 range-backoff 3 6
cable upstream 1 modulation-profile 321
no cable upstream 1 shutdown
cable upstream 2 connector 2
cable upstream 2 frequency 28000000
cable upstream 2 channel-width 3200000 3200000
cable upstream 2 docsis-mode scdma
cable upstream 2 spreading-interval 16
cable upstream 2 codes-per-minislot 4
cable upstream 2 active-codes 112
cable upstream 2 range-backoff 3 6
cable upstream 2 modulation-profile 321
no cable upstream 2 shutdown
cable upstream 3 connector 3
cable upstream 3 frequency 32000000
cable upstream 3 channel-width 3200000 3200000
cable upstream 3 docsis-mode scdma
cable upstream 3 spreading-interval 16
cable upstream 3 codes-per-minislot 4
cable upstream 3 active-codes 112
cable upstream 3 range-backoff 3 6
cable upstream 3 modulation-profile 321
no cable upstream 3 shutdown
!
interface Wideband-Cable5/0:0
description Interface specific de
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
cable rf-channel controller 1 channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel controller 1 channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel controller 1 channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel controller 1 channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Wideband-Cable5/0:1
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Wideband-Cable5/0:2
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Wideband-Cable5/0:3
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/0:0
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/0:1
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/0:2
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/0:3
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Cable5/1
downstream Integrated-Cable 5/1 rf-channel 0-3
cable mtc-mode
no cable packet-cache
cable bundle 1
cable upstream max-ports 4
cable upstream bonding-group 2
upstream 0
upstream 1
upstream 2
upstream 3
attributes 80000000
cable upstream 0 connector 4
cable upstream 0 frequency 36000000
cable upstream 0 channel-width 3200000 3200000
cable upstream 0 docsis-mode scdma
cable upstream 0 spreading-interval 16
cable upstream 0 codes-per-minislot 4
cable upstream 0 active-codes 112
cable upstream 0 range-backoff 3 6
cable upstream 0 modulation-profile 321
no cable upstream 0 shutdown
cable upstream 1 connector 5
cable upstream 1 frequency 40000000
cable upstream 1 channel-width 3200000 3200000
cable upstream 1 docsis-mode scdma
cable upstream 1 spreading-interval 16
cable upstream 1 codes-per-minislot 4
cable upstream 1 active-codes 112
cable upstream 1 range-backoff 3 6
cable upstream 1 modulation-profile 321
no cable upstream 1 shutdown
cable upstream 2 connector 6
cable upstream 2 frequency 44000000
cable upstream 2 channel-width 3200000 3200000
cable upstream 2 docsis-mode scdma
cable upstream 2 spreading-interval 16
cable upstream 2 codes-per-minislot 4
cable upstream 2 active-codes 112
cable upstream 2 range-backoff 3 6
cable upstream 2 modulation-profile 321
no cable upstream 2 shutdown
cable upstream 3 connector 7
cable upstream 3 frequency 48000000
cable upstream 3 channel-width 3200000 3200000
cable upstream 3 docsis-mode scdma
cable upstream 3 spreading-interval 16
cable upstream 3 codes-per-minislot 4
cable upstream 3 active-codes 112
cable upstream 3 range-backoff 3 6
cable upstream 3 modulation-profile 321
no cable upstream 3 shutdown
!
interface Wideband-Cable5/1:0
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Wideband-Cable5/1:1
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Wideband-Cable5/1:2
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 5
cable rf-channel 1 bandwidth-percent 20 remaining ratio 5
cable rf-channel 2 bandwidth-percent 20 remaining ratio 5
cable rf-channel 3 bandwidth-percent 20 remaining ratio 5
!
interface Wideband-Cable5/1:3
description Interface specific detials
cable bundle 1
!
interface Integrated-Cable5/1:0
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/1:1
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/1:2
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 5
!
interface Integrated-Cable5/1:3
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Bundle1
ip address 72.8.68.1 255.255.255.0 secondary
ip address 10.1.114.1 255.255.254.0
ip helper-address 206.81.64.22
cable arp filter request-send 3 2
cable arp filter reply-accept 3 2
cable source-verify
cable dhcp-giaddr policy
cable fiber-node 1
description Slot 5
downstream Integrated-Cable 5/0 rf-channel 0-3
downstream Integrated-Cable 5/1 rf-channel 0-3
upstream Cable 5 connector 0-7
!
=====Here are my test modems========
llv7246vxr#sh cable modem
D
MAC Address IP Address I/F MAC Prim RxPwr Timing Num I
State Sid (dBmv) Offset CPE P
001a.7007.58e4 10.1.114.4 C5/0/U0 online 22 0.50 2075 1 N
8c7f.3b90.0107 10.1.114.2 C5/0/p w-online 23 3.00 2281 0 N
d039.b3f8.4678 10.1.114.3 C5/0/p w-online 24 *3.00 2283 0 N
llv7246vxr#
Looking for any assistance to get these modems connecting correctly.
Scot
1/ Remove these, they are not needed
interface Wideband-Cable5/0:2
interface Wideband-Cable5/0:3
interface Wideband-Cable5/1:1
interface Wideband-Cable5/1:2
interface Wideband-Cable5/1:3
2/ change all your remaining ratio from 5 to 100
In addition to this :
I would use the more common ATDMA rather than SCDMA. I reckon that ATDMA is more widely supported by modems, and more people are familiar with performance tuning.
DS tuning :
* Add "cable default-phy burst 0" to interface cable 5/1 and 5/0
* In your cm config file, set the DS max-burst set to 4000, more possibly even a bit higher. I find 4000 works well and not much performance difference with higher numbers.
US tuning.... 2Mbps upload speed is often seen when using default settings. With tuning you should be able to achieve much faster. No idea about SCDMA, but with ATDMA :
* If you dont have major noise in your plant, aim to run higher width and QAM. Even if it means less US channels in use. Eg configure 6.4MHz with auto fallback to 3.2MHz. Configure 64QAM with fallback to 16QAM.
* Double the default minislot size (eg with 6.4MHz width, change the default 1 to 2. With 3.2MHz width, change the default 2 to 4)
* In your cm config file, set the max-burst and max-concat burst to 11000
Thank you for the assistance I will get empirical results on Monday.
On D2 modems i am getting 35/3.6 On D3 I am getting up to 92/12.3
So sounds like the remaining-ratio settings worked for the wideband downstreams.
Doesn't sound like upstream tuning worked. Did you try changing to ATDMA etc? If so perhaps repost your current config, along with example cm config file settings for your default service flows.
boot system disk2:ubr7200p-jk9su2-mz.122-33.SCH6.bin
boot bootldr bootflash:ubr7200p-kboot-mz.122-33.SCH6.bin
boot-end-marker
!
!
no aaa new-model
clock timezone MST -7
clock summer-time MDT recurring 1 Sun Mar 2:00 1 Sun Nov 2:00
cable snmp iftype ds-phy 1
cable admission-control preempt priority-voice
!
cable modem v6-max-cpe-prefix 16
no cable qos permission create
no cable qos permission update
cable qos permission modems
!
cable logging badipsource
cable logging layer2events
cable logging overlapip
cable load-balance docsis-enable
cable load-balance docsis30-enable
cable load-balance rule 1 enabled
cable load-balance docsis-policy 100 rule 1
!
cable load-balance docsis-group 101
downstream Integrated-Cable 5/0 rf-channel 0-3
downstream Integrated-Cable 5/1 rf-channel 0-3
upstream Cable5/0 7
upstream Cable5/1 7
method utilization
threshold load 70
policy pure-ds-load
!
ip subnet-zero
!
ip cef
!
multilink bundle-name authenticated
call rsvp-sync
!
controller Integrated-Cable 5/0
rf-channel 0 cable downstream channel-id 17
rf-channel 0 frequency 789000000 annex B modulation 256qam interleave 32
rf-channel 0 rf-power 52.0
no rf-channel 0 rf-shutdown
rf-channel 1 cable downstream channel-id 18
rf-channel 1 frequency 795000000 annex B modulation 256qam interleave 32
rf-channel 1 rf-power 52.0
no rf-channel 1 rf-shutdown
rf-channel 2 cable downstream channel-id 19
rf-channel 2 frequency 801000000 annex B modulation 256qam interleave 32
rf-channel 2 rf-power 52.0
no rf-channel 2 rf-shutdown
rf-channel 3 cable downstream channel-id 20
rf-channel 3 frequency 807000000 annex B modulation 256qam interleave 32
rf-channel 3 rf-power 52.0
no rf-channel 3 rf-shutdown
!
controller Integrated-Cable 5/1
rf-channel 0 cable downstream channel-id 21
rf-channel 0 frequency 813000000 annex B modulation 256qam interleave 32
rf-channel 0 rf-power 52.0
no rf-channel 0 rf-shutdown
rf-channel 1 cable downstream channel-id 22
rf-channel 1 frequency 819000000 annex B modulation 256qam interleave 32
rf-channel 1 rf-power 52.0
no rf-channel 1 rf-shutdown
rf-channel 2 cable downstream channel-id 23
rf-channel 2 frequency 825000000 annex B modulation 256qam interleave 32
rf-channel 2 rf-power 52.0
no rf-channel 2 rf-shutdown
rf-channel 3 cable downstream channel-id 24
rf-channel 3 frequency 831000000 annex B modulation 256qam interleave 32
rf-channel 3 rf-power 52.0
no rf-channel 3 rf-shutdown
!
interface GigabitEthernet0/1
ip address 206.81.64.82 255.255.255.248
no ip route-cache cef
no ip route-cache
media-type rj45
speed 1000
duplex auto
negotiation auto
!
interface Cable5/0
downstream Integrated-Cable 5/0 rf-channel 0-3
cable mtc-mode
no cable packet-cache
cable default-phy-burst 0
cable bundle 1
cable upstream max-ports 4
cable upstream bonding-group 1
upstream 0
upstream 1
upstream 2
upstream 3
attributes 80000000
cable upstream 0 connector 0
cable upstream 0 frequency 5000000
cable upstream 0 channel-width 6400000 3200000
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
no cable upstream 0 shutdown
cable upstream 1 connector 1
cable upstream 1 frequency 12000000
cable upstream 1 channel-width 6400000 3200000
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
no cable upstream 1 shutdown
cable upstream 2 connector 2
cable upstream 2 frequency 19000000
cable upstream 2 channel-width 6400000 3200000
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
no cable upstream 2 shutdown
cable upstream 3 connector 3
cable upstream 3 frequency 26000000
cable upstream 3 channel-width 6400000 3200000
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
no cable upstream 3 shutdown
!
interface Wideband-Cable5/0:0
description Interface specific de
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel 3 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 3 bandwidth-percent 20 remaining ratio 100
!
interface Wideband-Cable5/0:1
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel 3 bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/0:0
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/0:1
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/0:2
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/0:3
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Cable5/1
downstream Integrated-Cable 5/1 rf-channel 0-3
cable mtc-mode
no cable packet-cache
cable default-phy-burst 0
cable bundle 1
cable upstream max-ports 4
cable upstream bonding-group 2
upstream 0
upstream 1
upstream 2
upstream 3
attributes 80000000
cable upstream 0 connector 4
cable upstream 0 frequency 33000000
cable upstream 0 channel-width 6400000 3200000
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
no cable upstream 0 shutdown
cable upstream 1 connector 5
cable upstream 1 frequency 40000000
cable upstream 1 channel-width 6400000 3200000
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
no cable upstream 1 shutdown
cable upstream 2 connector 6
cable upstream 2 frequency 47000000
cable upstream 2 channel-width 3200000 3200000
cable upstream 2 docsis-mode atdma
cable upstream 2 minislot-size 2
cable upstream 2 range-backoff 3 6
cable upstream 2 modulation-profile 221
no cable upstream 2 shutdown
cable upstream 3 connector 7
cable upstream 3 frequency 54000000
cable upstream 3 channel-width 6400000 3200000
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
no cable upstream 3 shutdown
!
interface Wideband-Cable5/1:0
description Interface specific detials
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel 3 bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/1:0
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/1:1
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/1:2
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Integrated-Cable5/1:3
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
!
interface Bundle1
ip address X.X.X.X 255.255.255.0 secondary
ip address 10.1.114.1 255.255.254.0
ip helper-address x.x.x.x
cable arp filter request-send 3 2
cable arp filter reply-accept 3 2
cable source-verify
cable dhcp-giaddr policy
!
ip classless
ip route 0.0.0.0 0.0.0.0 x.x.x.x
ip route 10.205.1.2 255.255.255.255 x.x.x.x
!
no ip http server
no ip http secure-server
!
logging cmts ipc-cable log-level errors
cpd cr-id 1
nls resp-timeout 1
!
!
control-plane
!
dial-peer cor custom
!
gatekeeper
shutdown
!
!
cable fiber-node 1
description Slot 5
downstream Integrated-Cable 5/0 rf-channel 0-3
downstream Integrated-Cable 5/1 rf-channel 0-3
upstream Cable 5 connector 0-7
!
llv7246vxr#sh cable modem
D
MAC Address IP Address I/F MAC Prim RxPwr Timing Num I
State Sid (dBmv) Offset CPE P
d039.b3f8.4678 10.1.114.2 C5/0/p w-online 5 0.00 2509 0 N
8c7f.3b90.0107 10.1.114.4 C5/0/p w-online 6 0.00 2355 1 N
llv7246vxr#
I will have speed tests this morning.
Here is the example config
Network Access Control:on
SNMP MIB Object(docsDevNmAccessIp.1):1.3.6.1.2.1.69.1.2.1.2.1, IP Address, 255.255.255.255
SNMP MIB Object(docsDevNmAccessIpMask.1):1.3.6.1.2.1.69.1.2.1.3.1, IP Address, 0.0.0.0
SNMP MIB Object(docsDevNmAccessCommunity.1):1.3.6.1.2.1.69.1.2.1.4.1, Octet String, t4454nt
SNMP MIB Object(docsDevNmAccessControl.1):1.3.6.1.2.1.69.1.2.1.5.1, Integer, 2
SNMP MIB Object(docsDevNmAccessInterfaces.1):1.3.6.1.2.1.69.1.2.1.6.1, Octet String, @
SNMP MIB Object(docsDevNmAccessStatus.1):1.3.6.1.2.1.69.1.2.1.7.1, Integer, 4
SNMP MIB Object(docsDevNmAccessIp.2):1.3.6.1.2.1.69.1.2.1.2.2, IP Address, 255.255.255.255
SNMP MIB Object(docsDevNmAccessIpMask.2):1.3.6.1.2.1.69.1.2.1.3.2, IP Address, 0.0.0.0
SNMP MIB Object(docsDevNmAccessCommunity.2):1.3.6.1.2.1.69.1.2.1.4.2, Octet String, t4454ntw
SNMP MIB Object(docsDevNmAccessControl.2):1.3.6.1.2.1.69.1.2.1.5.2, Integer, 3
SNMP MIB Object(docsDevNmAccessInterfaces.2):1.3.6.1.2.1.69.1.2.1.6.2, Octet String, @
SNMP MIB Object(docsDevNmAccessStatus.2):1.3.6.1.2.1.69.1.2.1.7.2, Integer, 4
Maximum Number of CPEs:8
Upstream Service Flow Encodings
Service Flow Reference:1
Quality of Service Parameter Set:provisioned admitted active
Traffic Priority:7
Upstream Maximum Sustained Traffic Rate:35000000
Maximum Traffic Burst:11000
Maximum Concatenated Burst:11000
Downstream Service Flow Encodings
Service Flow Reference:2
Quality of Service Parameter Set:provisioned admitted active
Traffic Priority:7
Downstream Maximum Sustained Traffic Rate:150000000
Maximum Traffic Burst:11000
Privacy Enable:off
Scot
In my latest config the D3 modems eventually come online but there is no upload or download. The D2 modem never gets an ip. So my adjustments to DS width and upstream frequencies have broken my modems ability to go online.
Post an updated config snippet
boot-start-marker
boot system disk2:ubr7200p-jk9su2-mz.122-33.SCH6.bin
boot bootldr bootflash:ubr7200p-kboot-mz.122-33.SCH6.bin
boot-end-marker
cable modem v6-max-cpe-prefix 16
no cable qos permission create
no cable qos permission update
cable qos permission modems
cable logging badipsource
cable logging layer2events
cable logging overlapip
cable load-balance docsis-enable
cable load-balance docsis30-enable
cable load-balance rule 1 enabled
cable load-balance docsis-policy 100 rule 1
cable load-balance docsis-group 101
downstream Integrated-Cable 5/0 rf-channel 0-3
downstream Integrated-Cable 5/1 rf-channel 0-3
upstream Cable5/0 7
upstream Cable5/1 7
method utilization
threshold load 70
policy pure-ds-load
ip subnet-zero
ip cef
multilink bundle-name authenticated
controller Integrated-Cable 5/0
rf-channel 0 cable downstream channel-id 17
rf-channel 0 frequency 789000000 annex B modulation 256qam interleave 32
rf-channel 0 rf-power 52.0
no rf-channel 0 rf-shutdown
rf-channel 1 cable downstream channel-id 18
rf-channel 1 frequency 795000000 annex B modulation 256qam interleave 32
rf-channel 1 rf-power 52.0
no rf-channel 1 rf-shutdown
rf-channel 2 cable downstream channel-id 19
rf-channel 2 frequency 801000000 annex B modulation 256qam interleave 32
rf-channel 2 rf-power 52.0
no rf-channel 2 rf-shutdown
rf-channel 3 cable downstream channel-id 20
rf-channel 3 frequency 807000000 annex B modulation 256qam interleave 32
rf-channel 3 rf-power 52.0
no rf-channel 3 rf-shutdown
controller Integrated-Cable 5/1
rf-channel 0 cable downstream channel-id 21
rf-channel 0 frequency 813000000 annex B modulation 256qam interleave 32
rf-channel 0 rf-power 52.0
no rf-channel 0 rf-shutdown
rf-channel 1 cable downstream channel-id 22
rf-channel 1 frequency 819000000 annex B modulation 256qam interleave 32
rf-channel 1 rf-power 52.0
no rf-channel 1 rf-shutdown
rf-channel 2 cable downstream channel-id 23
rf-channel 2 frequency 825000000 annex B modulation 256qam interleave 32
rf-channel 2 rf-power 52.0
no rf-channel 2 rf-shutdown
rf-channel 3 cable downstream channel-id 24
rf-channel 3 frequency 831000000 annex B modulation 256qam interleave 32
rf-channel 3 rf-power 52.0
no rf-channel 3 rf-shutdown
interface Cable5/0
downstream Integrated-Cable 5/0 rf-channel 0-3
cable mtc-mode
no cable packet-cache
cable default-phy-burst 0
cable bundle 1
cable upstream max-ports 4
cable upstream bonding-group 1
upstream 0
upstream 1
upstream 2
upstream 3
attributes 80000000
cable upstream 0 connector 0
cable upstream 0 frequency 5000000
cable upstream 0 channel-width 6400000 3200000
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
no cable upstream 0 shutdown
cable upstream 1 connector 1
cable upstream 1 frequency 12000000
cable upstream 1 channel-width 6400000 3200000
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
no cable upstream 1 shutdown
cable upstream 2 connector 2
cable upstream 2 frequency 19000000
cable upstream 2 channel-width 6400000 3200000
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
no cable upstream 2 shutdown
cable upstream 3 connector 3
cable upstream 3 frequency 26000000
cable upstream 3 channel-width 6400000 3200000
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
no cable upstream 3 shutdown
interface Wideband-Cable5/0:0
description Interface specific description
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel 3 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel controller 1 channel 3 bandwidth-percent 20 remaining ratio 100
interface Wideband-Cable5/0:1
description Interface specific details
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel 3 bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/0:0
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/0:1
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/0:2
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/0:3
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Cable5/1
downstream Integrated-Cable 5/1 rf-channel 0-3
cable mtc-mode
no cable packet-cache
cable default-phy-burst 0
cable bundle 1
cable upstream max-ports 4
cable upstream bonding-group 2
upstream 0
upstream 1
upstream 2
upstream 3
attributes 80000000
cable upstream 0 connector 4
cable upstream 0 frequency 33000000
cable upstream 0 channel-width 6400000 3200000
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
no cable upstream 0 shutdown
cable upstream 1 connector 5
cable upstream 1 frequency 40000000
cable upstream 1 channel-width 6400000 3200000
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
no cable upstream 1 shutdown
cable upstream 2 connector 6
cable upstream 2 frequency 47000000
cable upstream 2 channel-width 6400000 3200000
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
no cable upstream 2 shutdown
cable upstream 3 connector 7
cable upstream 3 frequency 54000000
cable upstream 3 channel-width 6400000 3200000
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
no cable upstream 3 shutdown
interface Wideband-Cable5/1:0
description Interface specific details
cable bundle 1
cable rf-channel 0 bandwidth-percent 20 remaining ratio 100
cable rf-channel 1 bandwidth-percent 20 remaining ratio 100
cable rf-channel 2 bandwidth-percent 20 remaining ratio 100
cable rf-channel 3 bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/1:0
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/1:1
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100!
interface Integrated-Cable5/1:2
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Integrated-Cable5/1:3
cable bundle 1
cable rf-bandwidth-percent 20 remaining ratio 100
interface Bundle1
ip address x.x.x.x 255.255.255.0 secondary
ip address 10.1.114.1 255.255.254.0
ip helper-address x.x.x.x
cable arp filter request-send 3 2
cable arp filter reply-accept 3 2
cable source-verify
cable dhcp-giaddr policy
ip classless
ip route 0.0.0.0 0.0.0.0 x.x.x.x
ip route 10.205.1.2 255.255.255.255 x.x.x.x
no ip http server
no ip http secure-server
logging cmts ipc-cable log-level errors
cpd cr-id 1
nls resp-timeout 1
snmp-server community XXXX RW
snmp-server community XXXX RO
snmp-server enable traps tty
control-plane
cable fiber-node 1
description Slot 5
downstream Integrated-Cable 5/0 rf-channel 0-3
downstream Integrated-Cable 5/1 rf-channel 0-3
upstream Cable 5 connector 0-7
Was looking for a response from mbowe are you still out there?
So card 5 is feeding a single coax segment ?
You are wanting to provide 8x and 4x DS bonding ?
You want 4x US bonding ?
Are your modems DOCSIS only, or dual-mode DOCSIS/EuroDOCSIS ?
I have a test setup which is a single coax segment. The system that is in production is using D2 modems and D3 modems 4US X 8DS. Majority of modems are D3 Motorola SB6141. We have approximately 120 cable modems on an ubr-7200 with 2 cards right now. We are looking to combine areas down to all ports on the MC88V.
You have upstreams > 42MHz, wont work unless you have the SB6141E (EuroDOCSIS)
You have upstreams < 20MHz, probably work ok in lab, but usually wont work reliably in field
You have upstreams > 42MHz. This will only work if you have SB6141E modems (EuroDOCSIS). Won't work if you have SB6141 (DOCSIS)
You have upstreams < 20MHz. Probably will work OK in lab, but usually too much noise to work in field.
So should i reduce the channel width to 3.2 or use fewer ports? With only 125 modems but a high number of nodes (19) which scenario would be the better approach. I would like to maximize available bandwidth for upload. Would using 2 ports on each segment on the card like connector 0 and 1 be a better approach? I assume that i will be disabling connectors in the config. We are approaching 80+% D3 modems? I would have to make more changes to reduce ports. This is the reason i have not put this into production yet. i only expect to add 100 modems to the system at best.
19 x nodes fed from 1 x MC88V ?
Or will you have have multiple MC88V cards.
I suppose it can be done, but if I was you I would be buying a surplus ubr10k with a few 20x20 cards. These are going cheap.
I need assistance on the config file portion to activate bonding on the upstream. I have the excentis editor and I am at a loss on getting the following into the config file.
43 (Vendor Specific Options)
S08 (Vendor ID) = ff ff ff
S009 (Unknown sub-type) = 03 04 80 00 00 00
I have run all the cisco commands for upstream bonding meaning mtc-mode and it appears to be correctly enabled on the CMTS.
Scot
I thought the TLV parameters needed to be in the config file for US bonding which was wrong it is not required for US bonding. I changed configuration and combined both DS physical ports and put both under the first cable interface and removed from 5/1 and disabled 5/1. This allowed me to bond all 8 channels on my modems rather than only get 4 DS channels per half of the MC88V card. I elected to only use 4 US bonded ports. I also changed cable rf-channel 0 bandwidth-percent 1 remaining ratio 100 to allow the CMTS decide where to allocate bandwidth. THis one is solved.