Docsis chat

So we have upgraded and added more channel capacity to our CMTS, above 500Mhz. Our plant is old, and poorly built out, we have been upgrading for years but there are still pockets of 440MC and reverse tilts of 15db. Moving beyond that conversation, we have multiple channels in the fm band and lower, old internet only canister filters etc that cut off up to channel 70.

So here is my question, we have a bunch of new plant that can support the uppers, but want to be able to put some customers only in the lower load balancing group.

Hello.

I can't force my 16x4 and 24x8 cable modemes (TC7210, TG2492 and more) to utilize my 12x downstream configuration.

Also i can't force any fullband capture modems (like TC7200) to use spaced downstream configuration.

# cable modem 3870.0c34.b922 dbc downstream-list 1,2,3,4,5,6,7,8,9,10,11,12 ini di

# show load-balance dynamic | i 3870.0c34.b922
...
3870.0c34.b922 11->11 1,3,4,5->- 1,2,3,4,5,6,7,8->1,2,3,4,5,6,7,8,9,10,11,12 direct dbc cmtsRejected CLI 2017-11-29 11:41:34

Dear;

           I have the following situation. CMTS cisco ubr10k configured with 8 downstream channels and 2 upstream channels in bonding. I want to increase 4 more downstream channels but due to space problems in the spectrum the frequencies will be very high and can not be part of the bonding for only 1.x and 2.0 docsis cables.

            I made config file attachments and some docsis 3.0 cables are registering as 2.0. only take 1 downstream and upstream channel. What could be wrong? Is there any way out of my case?

Thank you, Flavio.

Hi

I am having trouble with the bandwidth and latency toward random CMs only during peak hours ( 19:00 ~ 22:00 +-1)
Even if there is a good connection, the utilization in all of the 8 DS channels and 4 US channels are not above 70% ( Max ) and there is no traffic done from client's side still random CMs have high ping, up to 4000 ms.

Hi

is there a way to put a description on bonded port

exemple:

Here is the modem
llv7246vxr#sh cable modem 10.1.114.112 verbose

Hi every body ,
I am a Engineer IT operation CMTS , i have a trouble like the subject of topic : The cable modem is online but CMTS can't ping , so we can't get the infomation of PWR , Mer , ... cable modem via SNMP - command line "cable modem remote query" . when i check the status on DHCP PNR , CNR of MAC address cable modem , it is avaible . So what is the reason here ? The communication between CM - CMTS - PNR . The CPE of CM connect internet normal .
Please help me to check it , sr about not good English .

Some log :

Im working with a very interesting issue. Worldwide there is a BIG issue with Intel Puma based cable modems. These are in use all over the world. These ALL have a CVSSv3 7.3 rated DoS attack that cannot be blocked at the ISP of a MSO because the hardware would cost $1M USD per ISP hub installation. The main issue is that these MAJOR ISPs are going 40Gbps and 100Gbps connections going to single CMTS boxes. Dealing with 10's of millions of clients.

Hi

Can someone send me soft SCH1 or later to UBR10K. My email letalek@gmail.com.

Thank you

Hi

During loging modem in 16xdownstream my mc20/20 card crashed, if bonding to 8xdown it is ok.
below dump from console.