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

Forward and return combiners

Forums: 

Hi, long time replyer, first time ever posting a question !

What are you using for forward and return combiners ?

Are you using integrated devices eg :
* ViewTEQ MFS-210R (forward path)
* ViewTEQ IRC-314 (return path)

Or are you "building your own" using modular combiner / splitter components eg :
* ATX MAXNET

In the forward path we are combining signals like CMTS, DTV, sweep, and some misc analog modulators.

In the return path we are splitting signals to CMTS and sweep.

Building a remote spectrum analyzer (Pre-eq)

Forums: 

I'm working on writing my own remote real-time spectrum-analyzer using SNMP. Today the company I work for uses a third party tool powered by 'Nimble This'. We have a combination of Cisco 10ks and 7200s, even one with an NPE-G1, so I don't believe 'Nimble This' uses the docsisIf3Mib.

I'm trying to poll average Pre-Eq data on a per upstream basis. Does anyone have experience polling this information directly from the CMTS? I had varied results with a few different OIDs.

DOCSIS eMTA Basics

Forums: 

Hello all,

I'm looking for some assistance configuring my first MTA in the lab. I have a ubr7111 CMTS and have successfully configured it to allow modems to join and have data services working with a variety of different modems.

However, I have recently acquired an Arris TM602G and wish to try to get it to register to an Asterisk SIP server. I believe the TM602G already has the SIP firmware installed, but since I acquired it second hand I do not know for sure. It shows firmware TS060460_101717_MODEL_6_SIP_PC20 in the web interface.

Cable Interface txload 255/255 although traffic is low

Forums: 

Hi,

I have a strange problem with cable interfaces - txload is 255/255 on all 6 interfaces. Upload speed is 7M maximum but download is good.
CMTS is 7246 with 3 MC88V cards.
I am completely stuck with this because upload speeds are very low. Here is a sh int output and configuration output.

Bsr 64000

Forums: 

Hello
Can someone help me with some configuration manual for the Motorola BSR 64000 cmts basic commands please?

what generic MIB OID can disable printing on terminal window Event Logs and messages?

Forums: 

what generic MIB OID can be used to disable/suppress printing on terminal window cable modem Event Logs, Syslog messages during Telnet session? Ubee EVM3236 EMTA. I didn't find command to disable this from command line.

TX32 fpga firmware

Forums: 

I'm looking to get a copy of the following files:

tx32_qrm_eeprom.hex.8552
tx32_qrm_flash.hex.8552

Also, if anyone has firmware for the Arris cm820a that they could share, that would be awesome.

Thanks guys!

CPE without Internet

Forums: 

Hello good day.

I have a laboratory mounted.
I have an ARRIS C3 and server in Centos 6.5,

it is happening that my cable modems are taking DHCP + TFTP + TOD but when I enter the modem cable to the wan part, I do not see that it takes an IP- a MASK- a GATEWAY- and a DNS so I do not have navigation.

but when I manually assign it in a static way the ip of my CPE block 172.21.0.1/16 to the modem this gives me access to the internet,

Errors when provisioning modem for the first time

Forums: 

I'm testing Eurodocsis 3.0 ARRIS C3 CANDANT modem (Broadcom-based) and tried provisioning it for the first time, and I have a number of issues: the modem not goes online.
Finally it got DHCP, ToD, TFTP, IP address, but 'Network access: not allowed'. Config file used contains a lot of incorrect TLV-11 as it intended for another modem (from another vendor), but for some reason they use it as generic config for other modems too, and it worked (for Motorola, ARRIS for example).

Cisco 7246 D3 problems :(

Forums: 

Hello all

we have here a 7246, with ngp2 and 1 docsis 3 card mx88v

we have 2 problems, the register process are very slow, and when the CMs are register, the broweser are extremly slow and too much loss outside targets

please help me and sorry for my English

our config:

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