Hi all,
pleas can anybody tell what I am doing worng? Here is my confif for CM but it doesnt work... modem doesnt want to accept it.
Main
{
NetworkAccess 1;
ClassOfService
{
ClassID 7;
MaxRateDown 10485760;
MaxRateUp 5242880;
PriorityUp 5;
MaxBurstUp 3044;
PrivacyEnable 0;
}
DsPacketClass
{
ClassifierRef 255;
ClassifierId 65535;
ServiceFlowRef 65535;
ServiceFlowId 2147483647;
RulePriority 255;
ActivationState 1;
}
UsPacketClass
{
ClassifierRef 253;
ClassifierId 2;
ServiceFlowRef 2;
ServiceFlowId 2147483645;
RulePriority 255;
ActivationState 1;
}
DsServiceFlow
{
DsServiceFlowRef 65535;
DsServiceFlowId 2147483647;
TrafficPriority 6;
MaxRateSustained 10485760;
MaxTrafficBurst 564343;
}
UsServiceFlow
{
UsServiceFlowRef 2;
QosParamSetType 7;
UsServiceFlowId 2147483645;
TrafficPriority 1;
MaxRateSustained 2048000;
MaxTrafficBurst 3044;
}
Thank you very much for answers and advices.
You mixed CoS settings (DOCSIS 1.0) with ServiceFlows (DOCSIS 1.1, 2.0, 3.0)
Try to remove this part:
ClassID 7;
MaxRateDown 10485760;
MaxRateUp 5242880;
PriorityUp 5;
MaxBurstUp 3044;
regards,
wittmann
P.S. Sorry for my poor english ;)
Thank you very much. My current docsis CM config is :
Main {
NetworkAccess 1;
DsChannelList
{
SingleDsChannel
{
SingleDsTimeout 60;
SingleDsFrequency 114000000;
}
DefaultScanTimeout 300;
}
DsServiceFlow
{
DsServiceFlowRef 4; /* SF number */
QosParamSetType 7; /* activates SF */
TrafficPriority 3; /* sets medium priority */
MaxTrafficBurst 65224;
MaxRateSustained 30960000; /* max transfer rate */
}
UsServiceFlow
{
UsServiceFlowRef 1; /* SF number */
QosParamSetType 7; /* activates SF */
TrafficPriority 3; /* sets medium priority */
MaxTrafficBurst 65224;
SchedulingType 2;
MaxConcatenatedBurst 15220;
MaxRateSustained 15100000; /* max transfer rate */
}
So it s working now but I have problem with US speed. Its about 1,8 - 2 MBb maximum. So ts there anythong missing ?
If your using a cisco CMTS you can run the command
show cable modem [ip or mac of modem] qos
it will show you what the modem is configured for
As far as actual throughput there are several factors involved
First where to where are you testing?
PC Behind CM -> Speed test site in Headend
PC Behind CM-> Speed Test Site on Internet
Why this is important, you need to be measuring speeds from behind the CM to as close to your CMTS as possible so you can get a true picture of what kind of bandwidth you are using.
What Upstream Modulation are you using? QPSK, QAM-16, etc...
Why this is important, different upstream modulations have different bandwidth capacities.
What channel width is your upstream set at?
Why this is important, Channel width works along with your modulation type to determine what kind of bandwidth is available in your upstream. typically most modulation types want 3.2 Mhz wide channel widths For example, QPSK upstream at 3.2mhz is ~5 Mbs of bandwidth, while QPSK at 1.6 Mhz is ~2.5 Mbs of bandwidth.
A cisco Specific doc that has more information is available Here