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

SNR maintain in DOCSIS network.

Forums: 

SNR problem in DOCSIS network

BSR64K corrected/uncorrectable codewords

Forums: 

We got a BSR64k running in docsis 1.1. We have hooked a modem up directly to the back of it and it is running corrected codewords when streaming data over the internet with an occasional uncorrectable. Is this normal? We are thinking that this should be clean and not running any corrected data. We have tried different modems and slots as well (sb5101, sb5120, and slots 11,12,13). Corrected codewords are about the same no matter what.

Software - 3.1.1.16P05.KRCU
CMTS 1x4 - RDN PPC 3.1.0.26
SBG900 - sbg900-2.1.9.7-scm00-nosh
16qam - 32mhz
256qam - 117mhz

Modem Levels

Traffic shaping in Cable Modem

Forums: 

Hi all,

I'm trying to do a kind of traffic shaping in Cable Modem, so when traffic reaches the maximum sustained rate of a service flow, the ping reply from cable modem to be stable, not to go from 300 ms to 2000 ms.

Is this related to MaxTrafficBurst maybe?

Below is one of my service flow:.

Upstram Flow
Service Flow Reference = 1
QoS Parameter Set = 7
Traffic Priority = 1
Max Sutained Rate = 512000

I will appriciate any suggestion from you.

Regards,
Astrit

docsis_server NAK -- unknown docsis modem

Forums: 

Hi,

I am new to docsis and trying to setup docsis_server to manage a small cable system.
I was wondering if anyone has ever come accross this message and how it can be resolved. This is the message that I am getting in the sys_log from within docsis_server:
NAK -- unknown docsis modem macaddressOfmodem

I reboot the modem and it keeps sending out this message above.

And below is the state of the modem when I run show cable modem on the CMTS. (ip and mac info left out on purpose)
Interface Prim Connect Timing Rec Ip Address Mac Address

vlan trunking through CM's (if possible)

Forums: 

Hi,

Has somebody experience with configuring CM's to trunk different vlan's? A little bit of help in putting me in de right direction would be appreciated a lot. What I liked to try is setting up the following configuration:
2 CM's, both connected to a cisco device, let's say a cat2960 where CM's are connected to ports that are configured in trunk mode. So a trunk is established between both catalysts. CM's are registered on the same CMTS (uBR 10K).

Thanks,
Regards
Anthony

SB5120 SB5101 modems on a DCM-2000

Forums: 

Hello Everyone,

I am looking for some direction on a problem I have.

I have a DCM-2000 CMTS with MPthrills management/provisioning system.

This is a lab testing setup and I have tested 1,000's of modems like DCM, SB4100, AMBit, 3com all Docsis 1.0/1.1

The SB5120 is 2.0 and 1.1 capable from what I see on the spec sheet. The SB5120s I am using were previously tested "GOOD"

The config file I am using is static and very basic.

My 1st question is, Does a DCM-2000 CMTS allow me to provision an SB-5120 or SB-5101 along with the other modems SB4100

max number of classifiers per CM

Forums: 

Hi

can anyone tell me what is the maximum number of upstream classifiers that a Docsis 3 must support?

thanks

Esprit H.

packetcable- MTA configuration file

Forums: 

In packetcable project, during the provisioning of the MTA, a configuration file which is in TLV format is downloaded. TLV 43 will contain vendor specific options. What ids the need of this vendor specific options? what type will be the value part of the vendor specific TLV 43?? What will we do with vendor specific information collected from the MTA configuration file ?

Motorola SB5102 and Linksys WRT54G problems.

Forums: 

Hi guys,

Am having a few problems with my new house. We've been supplied with the above modem, and it doesn't seem to be working with my router.

I've got a linksys WRT54G/S router, and have the cable modem plugged into the internet (WAN) port on the router. I then have a wired pc running from the 1st ethernet port and 3 wireless laptops.

I'm getting no connection, and have done what I can in the linksys browser page, have changed it from a gateway to a router, but that didn't change anything. I keep hearing something about double nat
but afaik thats the gateway/router options?

7246VXR Mixed-Mode D1.0/D2.0 with Terayon CM's

Forums: 

Hi everybody

Have anyone experience with Terayon TJ110 Cablemodems running on a Cisco 7246VXR in Mixed Mode (Docsis 1.x and Docsis 2.0)???

When I activate the Mixed Mode, the old Modems doesn't come online anymore...

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