Docsis chat

Hi Gentlemen! I am trying to register a cable Modem to a 5Mbps bandwidth, but even if i create a config file with MaxRateSustained of 5Mbps, it reaches only 2Mbps. Could you help me?

CMTS: Cadant C3
Cable Modem: Technicolor TC7110B; THOMSON THG544B

Hi,
Currently I am using DOCSIS 3.0 with modulation profile 2 created for upstream modulation type 16 QAM with 3.2 MHz channel width. This way I can get Max throughput of(4*2.56=)10.24 mbps. Modulation profile 3 is created for 64 QAM. By using 6MHz channel width, I can get ~ 30 mbps throughput.
Is it mandatory to use channel width of 6 MHz for profile 3 or can I use with channel width of 3.2 MHz .

yum update

- yum install wget
- yum install unzip
wget https://github.com/bschirrmeister/docsis_server/archive/master.zip
unzip master.zip

Hi,

I really need a help.
From SNMP by setting the MIB: arrisCmDoc30AccessTelnetPassword (Technician PW) I am unable to active the telnet. Since it is restricted.
So is there any way to active telnet from putty or Xshell by entering the CM IP address?
Plz help me out.

Hi Experts,

We have a number of PPPoE clients on our uBR7200 series platform. The CMTS is configured as a LAC and a L2TP tunnel is established to a LNS outside our network on a common vLAN. I see the uBR10012 doesn't support this. We have rolled out uBR10012.

Is there any other soution to this?
I need to forward PPPoE packets on vLAN3 if I can't use PPPoE/L2TP config. This is what we do on Arris and Casa CMTS.

Thanks in advance for any tips and hints,

Q.

I really need a help!!!

I'm having trouble to put my cable modems 2.0 and 3.0 work with BSR64000.
- I see the DHCP Server offering IP (Ubuntu Server + ISC DHCP Server 4.x)
- I see the cable modems on the CMTS.
- I see the IPs offered to cable but they don't lock, don't get the file from tftp server. But the tft server is working fine.

Can someone help me find vendor specific one?
Thanks.

Hi,
I'm trying to upgrade the firmware on some EPC3928D modems. The firmware is installed, but the modem will not come online after the upgrade.

The modem stops at reject(c), and then reboots and starts over with the init process.
The only change I made in the config file is the Software Upgrade Filename line.

After a bit of searching I see that reject(c) could be "bad Class of Service".

What should I do next?
Thanks

Hi

Has anyone done a 16x4 docsis setup using cisco ubr10k and mc20x20 cards ?

I found 8x4 posts but no 16x4

Thanks

Patrick

can anyone help me configuring docsis_server ( https://github.com/bschirrmeister/docsis_server )?
I install it in ubuntu 14 and there is no error at all but it does't give any IP in the CM.
When I loot at the log files in the DHCP ( /home/docsis/docsis_server.DHCP.3838 )
heres what i got:
*************************
load /2 0 high(16) diff 1444958606
LOG docsis_server DHCP version 3.5 activated
tmp[0]
tmp[3]
tmp[6]
tmp[9]
tmp[12]
tmp[15]
tmp[18]