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Docsis chat

Chatter about DOCSIS, provisioning, networks, and CMTS gear.

CMTS PC-Based (pci card)

Forums: 

someone know about CMTS PC-Based http://www.c9networks.com/products.html ?

Multiplexing two downstreams

Forums: 

Hi,

I am using DOCSIS 1.0. .Since downstream modulation is 256QAM.
This way I can get Max 37 mbps throughput.Now i have added new downstream card with New downstream frequency (different from previous one).Now can i multiplex both the downstream and feed to single transmitter?

cmts laboratory environment

Forums: 

Hi everyone,

i would like to know if you have any idea about how to "build" kind of simple CMTS environment for using in laboratory. something
like a card (ethernet -> coax? pci? usb?)... do you know if have any product like that?

because in my project, i need to provide internet access for cable modem like a SVG1202[1]

DOCSIS packet classifier options

Forums: 

Hi,

Did some body already "play" with the DOCSIS options 24 with 22 and 25 with 23?

I try and try to fix somes priorisation and I got many problem to tweak the options and finished by having 3 definitions:

Problem with epc2425

Forums: 

Hi,

i have problem with config file on epc2425.

SnmpMibObject saRgDot11BssSecurityMode.32 Integer 7; /* wpaWpa2Psk */
SnmpMibObject saRgDot11WpaAlgorithm.32 Integer 2; /* tkipPlusAes */
SnmpMibObject saRgDot11WpaPreSharedKey.32 String "qwerty1234567890" ;
SnmpMibObject saRgDot11ApplySettings.0 Integer 1; /* true */

If i set this mibs in config file to upload to epc2425 - modem don't change this part. But if i gave it by snmpset:

Example of CM Reset

Forums: 

I am using a linux box to reset some promlematic modems using http://www.net-snmp.org/wiki/index.php/TUT:snmpset but i keep getting need value when i use the docsisdevresetnow. Is there anyone on the forum that has an e?amle for me to review.?

Help me Understand This Cfg File

Forums: 

Hello, The file is from Arris modem.

Just wanted to know about the Download and Upload Value and Info about this file and how can i change it to the bigger or lower value.
[code]

How to Prohibit Static Address Assignments on CPE

Forums: 

I reserve a small number of addresses in each of my DHCP public subnet pools for static assignments to businesses, etc. How do I prohibit a user from hijacking one of these unused addresses and simply plugging it into their setup? I presume it's a very simple class definition/designation and then applied to the host entry?

Could also use some help with a migration path to a third uBR and D2 from our humble little D1 setup using a pair of uBR's currently. D3 won't be in the cards for me until next year, so I need to make do with what I have for now.

Arris C3 fan question

Forums: 

Hello All,

I have some Arris C3's in some pretty remote locataions and need to know if the fans are dying. I've found this:

SNR Question.

Forums: 

I have a node that has a SNR issue. The SNR never peaks 26dB but always holds steady at 25-26dB while my other nodes hold 34-36dB. We use all SA/Cisco Gainmaker 870 gear. Checking the Port codeword errors and corrects it is our lowest error rate % port "Peaks 1.04% correct / 0.01% uncorrect" and thats only for a matter of a few minutes. This strikes me odd, so we hooked up our meter to the return and you couldn't ask for a more ingress clear return. The entire span from 5-55Mhz looked like this......

(See Attached SNR-spec Picture)

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