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

curious issue Hitron doesn't connect to specific MAC on C40g

Forums: 

Dear all,

I am experiencing a very curious issue. I can't seem to find the problem in the CMTS configuration. Let me explain: I have a specific model of HITRON cable modem that doesn't connect to MAC 3 but works fine with the other MACs. The modem fails to lock onto the downstream carriers and keeps rebooting. I am sharing the configuration of MAC 3 (which has issues with this modem) and another MAC where the modem works.

Force narrowband offline

Forums: 

We have UBR10K systems and want to force narrowband modems offline or severely restrict their bandwidth. We want the resident/customer calling in to get the issue fixed and not taking away from the bandwidth of the 8x and 16x groups. Does anyone have any suggestions of how best to accomplish this? Thanks.

Signal level

Forums: 

Is this signal level optimal for cable modem to operate correctly? (EuroDocsis 3.0)

Downstream Channels

Power Level: Signal to Noise Ratio:
Channel 1: 10.6 dBmV 41.9 dB
Channel 2: 11.1 dBmV 41.9 dB
Channel 3: 10.2 dBmV 42.1 dB
Channel 4: 10.3 dBmV 42.1 dB
Channel 5: 0.0 dBmV 0.0 dB
Channel 6: 0.0 dBmV 0.0 dB
Channel 7: 0.0 dBmV 0.0 dB
Channel 8: 0.0 dBmV 0.0 dB

Upstream Channels

modem can't lock to DS frequency

Forums: 

Arris TM902 modem can't lock to DS frequency: it constantly scan all DS frequencies, although prints "Got energy" on the correct frequencies (330, 338, 346 MHz..) but continues scanning cycles, include Annex B frequencies. I tried to set 'startup_ds_frequency 338', but this doesn't help. Also, what cause these error messages in Event log:
SYNC Timing Synchronization failure - Failed to acquire FEC framing;
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;

CASA C40g MAC VENDOR and Load Balance

Forums: 

Hi everyone! I have a Casa C40g, and I would like to know if it is possible to create a rule during load balancing that identifies a specific modem based on its MAC vendor and assigns it a static group of 16 carriers ???? .

Thanks.

Hitron modem MODEL: CGNVM - login details

Forums: 

Hi

Please help me with the necessary user to log in to the Hitron modem MODEL: CGNVM-3582 via the WAN Ip

RFC 868 Time (The Death of xinetd in RHEL)

Forums: 

This may be relevant to few if any, but in testing an upcoming upgrade to the time server for our RPDs/iNodes we realized that RHEL 9 (and subsequently our current choice, AlmaLinux) dropped xinetd from the available packages. This may be with good reason, as apparently the project hasn't updated in over a decade.

Because I have an ironic sense of laziness, rather than add another OS to my administrative workload, I opted to write a little daemon in Rust that responds to RFC 868 Time requests via TCP, UDP or both.

CASA systems C2200 firmware ?

Forums: 

Hi!

Anybody has the newest firmware for CASA systems C2200 and would like to share it ?
I have an old device, and want to setup as test CMTS for NMSprime system, so no commercial use.

LICA miniCMTS LMC-1RU firmware ?

Forums: 

Hi!

Anybody has the newest firmware for LICA miniCMTS (LMC-1RU) and would like to share it ?
I have an old device, and want to setup as test CMTS for NMSprime system, so no commercial use.
Existing firmware ver. 3.89.28

https://www.lica.cz/products/minicmts.htm

Method to run PNM test PnmCmtsUsOfdmaRxMer over a complete interface

Forums: 

Hello dears!

I have one tricky question:

I would like to run a PNM test over a whole upstream Interface but i'm not quite sure how to approach to this?
at the moment i'm doing this :

docsPnmCmtsUsOfdmaRxMerCmMac
docsPnmCmtsUsOfdmaRxMerFileName
docsPnmCmtsUsOfdmaRxMerDestinationIndex
docsPnmCmtsUsOfdmaRxMerEnable

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