Docsis chat

Hello,

I'm working on a system that uses a C3 and wireless DOCSIS. I just need to increase the SNR. currently the down SNRs are from 22 db to 32 db. I'm very familiar with DOCSIS. Does wireless use the same standards? Down power -18 to +18, Down SNR should be about 30db, Up power should be about 45db but can't go over 61db, Up SNR (read at the CMTS) should be about 30db??? Should I start tweaking the cm config file or the modulation profiles. The C3 is licensed for SCDMA, should I use that or TDMA or ATDMA? I have a plan, but would just like some opinions.

Hi, all

I run fedora with docsis_server, whenever I check processes on the server, there is a TON of dead (defunct) processes for docsis_server. While I know I can resolve this with cronned script, I wonder do any of you have idea why is this happening?

Can somebody confirm this. I have situation where docsis_server 3.5 sends wrong IP address in ACK packet for cable modems. It is IP+1 or IP+2 from value in OFFER packet.

Some of the cable modems doesn't mind this, but some of the do, and they end up stuck in init(i)...

select * from dhcp_log;
+------------+----------+----------+---------+------+--------------+-------------+--------------+-----------+-----------------+--------+
| thedate | thetime | serverid | sending | type | dynamic_flag | mcache_flag | b_macaddr | b_ipaddr | b_modem_macaddr | subnum |

Hi,

I'm new to docsis software.
I installed: DOCSIS Configuration File creator, version 0.9.5
on FreeBSD 7.1.
During creation :docsis -e tol.txt key_file tol.cm
I received :

Final content of config file:
------------------------ cut
Main
{
NetworkAccess 1;
SnmpMibObject
SnmpMibObject experimental83.1.2.1.4.1 String "public" ;
SnmpMibObject
SnmpMibObject experimental83.1.2.1.6.1 String "@" ;
SnmpMibObject
SnmpMibObject
SnmpMibObject
SnmpMibObject
SnmpMibObject
SnmpMibObject
------------------------ cut
which is wrong.

Hi all,

I need help with option 122. I've been browsing forums for days before I run into this obstacle. It is very hard for me to figure out what is a problem for my MTAs.

Hardware I use is BSR1000, modems are SBV5121, server is fedora, dhcp is isc-dhcpd-4.0.0.

I have gradually worked my way through dhcpd.conf - I managed to boot up CM, assign it fixed IP address, and send it option 122 so it wakes MTA up. Problem is that MTA keeps sending dhcp discover but it seems not to "hear" my dhcp offers from the server.

here goes some of the debug info from the CMTS:

Some suggestions for software to monitoring the cablemodems, view status, power levels, operating time and more. Seeking that can simultaneously monitor multiple cablemodems to save record (log) of the parameters of each cable modem, to diagnose system failures.

Currently I use Stormwatch II.

DrakerDG

We're trying to deploy an Arris MTA using NCS firmware to a Cisco uBR7246VXR... provisioning is ISC DHCP. We're fighting an issue with how we want the cable modems and then the MTA to come online. We want the cable modem to grab a level of service config file under it's cable MAC address, and then the MTA to make it's own DHCP request under the MTA mac address and grab a file macaddy.mta

Hello Everybody,
I was looking for a way to control many CPE bandwidth using ServiceFlows.. but when I try to control more than 10 clients (I mean, put more than 10 UsPacketClass, 10 DsPacketClass, 10 UsServiceFlow and 10 DsServiceFlow) my Cable Modem doesn't come online, staying in init(o) (This I can see directly in my cmts - show cable modem 0013.711b.5498).

There are limitations like this??
My CMTS is a Cisco 7246VXR and i'm using docsis to encode. The Cable Modem is a motorola SurfBoard 5100/5101 Software Version: SB5100-2.3.3.0-SCM00-NOSH and SB5101-2.5.2.0-SCM01-NOSH-NNDMN.p7

Hi Docsis community,

I would like to see with you guys , your Docsis 3 experiences and first if somebody is using allready
Docsis 3.0 Thomson TCM470, I appreciated to see an example of docsis 3 CM config file. especially one using 4 downstreams

Best Regrads.

Hello,

I am a residential subscriber of a cable ISP. The connection is solid -- I am getting what I pay for according to all my speed tests (download and upload speeds).