Hi All,
I'm very new to CM's in general due to someone leaving the company but have made some head way.
We are doing Docsis 2 on all our cm's now have are currently offering a speed of 9 Meg dn and 1 Meg up.
We have a few customer who need more speed, so I created a package of 15 dn and 5 up and applied it to a test modem in our building whee the cmts is located.
I can get the 15 dn but can only get 2.6 up, I can't seem to find where the problem on the up load speed is.
Hope someone on here can provide some help.
We are using the Cisco UBR MC-28U cards in cmts with NPE G1 processor
Here is my cmts config as well as my cm config info.
Thanks Bobby
interface Cable3/0
no ip address
load-interval 30
no cable packet-cache
cable bundle 1
cable downstream channel-id 2
cable downstream annex B
cable downstream modulation 256qam
cable downstream interleave-depth 32
cable downstream frequency 549000000
no cable downstream rf-shutdown
cable downstream rf-power 57
cable upstream 1 description Tech Center
cable upstream 1 connector 1
cable upstream 1 frequency 35008000
cable upstream 1 docsis-mode atdma
cable upstream 1 channel-width 6400000 6400000
cable upstream 1 minislot-size 2
cable upstream 1 power-level 0
cable upstream 1 range-backoff 3 6
cable upstream 1 modulation-profile 241
no cable upstream 1 shutdown
No Class ID Max Downstream Rate Max Upstream Rate Upstream Channel Priority Guaranteed Min Upstream Rate Max Transmit Burst Baseline Privacy Enable
1 1 15728640 5242880 5242880 20480 Deactivated
Baseline Privacy
Authorize Wait Timeout:
Reauthorize Wait Timeout:
Authorize Grace Timeout:
Operational Wait Timeout:
Rekey Wait Timeout:
TEK Grace Time:
Authorize Reject Wait Timeout:
Firmware Upgrade
TFTP Server IP:
Filename:
CPE
Max CPE: 10
I really wouldn't recommend a package larger than 10meg on a Docsis 2.0 system, as the total channel capacity of a docsis 2 downstream is only 36megs after network overhead. That being said, try this:
NetworkAccess = 1
MaxCpeAllowed = 10
UpstreamServiceFlow =
SfReference = 11
SfQosSetType = 7
SfTrafficPriority = 1
SfMaxTrafficRate = 7097000
SfMaxTrafficBurst = 387125
SfMaxConcatBurst = 0
DownstreamServiceFlow =
SfReference = 21
SfQosSetType = 7
SfTrafficPriority = 1
SfMaxTrafficRate = 10297000
Enable2.0Mode = 1
Also, make sure the speed test server is inside your network, otherwise you may not be getting an accurate reading.
I wrote up some info on this topic a while back, you can find it here
http://www.docsis.org/comment/2842#comment-2842
I made some changes to my service class as you suggested and also checked the 7246 cmts ch. width which is set at 6.4 and mini slot at 2.
I set the service class settings to reflect your suggested DS of 10297000, SF Traffic priority 1 ( didn't know what SF Reference =21 meant )
On the US I set the rate at 7097000, Traffic burst 387125, Traffic priority at 1, ( again didn't know what SF Reference =11 meant )
I also changed the burst and concat. burst to 4000 per the article that you referenced to.
I can get the download speed as I set it 10 Meg but still only get 2.7 Meg upload speed.
Any Ideas on what I'm missing??
Thanks Bobby