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

BSR64k SRM10 – Low throughput with 10G SFP+ uplink

Forums: 

Hello,

I’m working with a BSR64k with SRM10 in a lab environment.
The cable modem has a 1G/100Mb config and is in a 24 downstream bonding group.

- Instead of achieving 1G download, I can only measure around 250–280 Mbps when using a 10G SFP+ uplink.

- However, when I replace the SFP+ with an SFP (1G uplink), I am able to measure 950 Mbps downstream speed behind the cable modem.

I cannot figure out what is causing this issue. I have already tried replacing SFP+ modules with different types, but it didn’t help.

Excluding certain DS frequencies per modem

Forums: 

Hello,

I'm wondering if there is a way to "tell" certain modems in the system that they should not use, for example, two downstream frequencies.
All others frequencies can be used.

There are a few modems in the entire area that have problems with mainly two DS frequencies, the majority of the same area has no problems, just a few modems. To avoid disabling these two DS frequencies for the entire area, I'm wondering if this is somehow possible to specify this for individual modems.

Docsis 3.0, CASA C10G.

Thank you very much in advance!

hot-swap US16x8

Forums: 

Hi everyone,

I need to replace a module on a Casa Systems C40G CMTS. I'm currently using a US16x4 upstream module and I want to hot-swap it with a US16x8 module.

Has anyone done this before?

Is hot-swapping supported for this type of module?

Will the CMTS automatically load the existing upstream configuration, or will I need to reconfigure everything manually?

Roughly how long does the US16x8 module take to fully boot and become operational?

Recommendations before doing the swap?

SIP on Kaon or Sagemcom

Forums: 

Anyone have any luck getting SIP working on a Kaon or Sagemcom modem?

If so can you share the MTA config? Been banging my head for days on these modems.

Thanks!

Multiple c100g chassis reboot (firmware vulnerability?)

Forums: 

I have two (out of two) c100G chassis that keep randomly rebooting starting last week. Been running for years previously without issue. Nothing shows up in the log as to why, just running along as normal and then hard resets with 'WA-CLI-1: smm6: cfg_recover_smm():351: pid = 652, tid = 12057, err = Success. start recover SMM configurations ...' being the next log entry.

They both have redundant SMMs and each chassis reboots every time within a minute or two of each other.

CMTS Discards pkts

Forums: 

Hi everyone, I'm reviewing the statistics of my trunk on the CMTS C40g and would like to know if this data is a cause for concern. Thanks!

CASA-C40G(config)#show interface trunk 1 stat

Maximum Sustained Traffic Rate not working

Forums: 

Hi

I'm using the basic config file below but for some reason the Maximum Sustained Traffic Rate is not working on any of my modems, I have Netgear, Arris and CBN modems. It worked before but it suddenly stopped and every modem has full speed.
Does anyone know how to solve this or what the issue can be?
They are controller by a Teleste DAH100.

Thanks

Docsis Configs above 4.2gbs

Forums: 

Has anyone tried setting up a config above 4.2gb/s? I've tried using multiple service flows, but I can't seem to spread the traffic across them, it always just uses the first one and never tries to use the additional ones.

return signal generator

Forums: 

Back in the days I had two channel or carrier generator that put out about 50 dbmv at 7Mhz and 40Mhz for example.
lent it out and last I've seen it. had a small signal generator that had 5 switches on it for frequencies like 10, 20, 30, 40 and 60Mhz. worked great, but it died and can't seem to find something small that can generate return carriers like 10, 30, 50 and 85Mhz that can be connected in the field and check levels at the node or headend.

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