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

MTA freezes HG D 2.0/3.0 (ARP table empty)

Forums: 

Hi all,

Since two month ago we have noticed complications in our HG's. The sympthom is the following:
The unit is initially correctly provisioning in our servers: Data and Voice (Europ PC1.5);
After some time (you don't need to do any specific traffic) the MTA part freezes but i steel have Data connections.

Modems possibly not taking speed from config

Forums: 
I just recently noticed something interesting. I'm generating my config files using the open source docsis program that's on sourceforge. Recently a customer started complaining that his speeds were not running as high as they should, so i started looking at his modem to make sure it had the correct provisioning. Through snmp, I can see that he is getting the correct config file, but I also see this: IF-MIB::ifType.1 = INTEGER: ethernetCsmacd(6) IF-MIB::ifType.2 = INTEGER: docsCableMaclayer(127) IF-MIB::ifType.3 = INTEGER: docsCableDownstream(128)

Segmentable Node

Forums: 

Hi group

Once more I call for help. In recent posts, I've been asking about how to improve service. Apart of load balance, well I think that a good way to improve service is to segment optical nodes, for two reasons, one because we have two cmts and we want to put it work. And second because we need to increase the efficiency on the HFC network.

This is what we know:

-We have one optical node which is overload. That's a fact because too much home passes.
-Harmonic 3842 is the reference of our node.

Getting IP addresses of all CMs

Forums: 

Hi,

how could I get the IP addresses of all the CMs currently on the network via SNMP? Should I get them from the every particular CMTS or is there another way of getting them?

I need them for getting / setting values of every particular CM in the net.

Thanks!
Mike

SNMP OID for broadcast, multicast, unicast, discards, ...

Forums: 

Hi everybody,

IOS (tm) 7200 Software (UBR7200-IK9S-M), Version 12.2(15)BC2c, RELEASE SOFTWARE (fc1)
Cable5/0: Upstream 5 is up
Received 4742721 broadcasts, 681441 multicasts, 447519019 unicasts
0 discards, 39727237 errors, 509715 unknown protocol
452943181 packets input, 2030212 uncorrectable
36941098 noise, 0 microreflections
Total Modems On This Upstream Channel : 157 (95 active)

AND

IOS (tm) 7200 Software (UBR7200-IK8SU2-M), Version 12.3(23)BC3, RELEASE SOFTWARE (fc1)
Cable6/0: Upstream 5 is up

Patch and Howto: docsis_server 3.5 Option 122 (MTA provisioning)

Forums: 

Hi All,

I love the docsis_server and i invested much time to get things run.

Now I get docsis_server 3.5 run with option 122 (MTA-support). Therfore i added some tricky patches.
So i can do provisioning of Arris TM502B with SIP-load. (GUPI-MTA provisioning flow)

On this board you can find i good howto with dhcpd:
http://docsis.org/node/291
Follow this instruction to set the correct Configfile-Settings.

This works great, but i want to use docsis_server instead of dhcpd.

My english is not realy perfect, but i try to explain you how it works:

Two CMTS so two DHCPD servers

Forums: 

Hi group

We recently purchase another cmts (bsr2k) due to our old cmts (a bsr1k) is becoming too small for our users. What I want to do is to separate the traffic between the two cmts and to split the users for differents upstream ports.

Choosing a DOCSIS 2.0 CMTS : BSR2000 or Cadant C3 (or sth else?)

Forums: 

We're searching for a cost-effective way to deploy EuroDOCSIS 2.0 over HFC plant. One downstream / 4 upstreams should be fine.

Can anyone recommend over/against Motorola BSR2000 and Arris Cadant C3? Pros/Cons? Feature support? Stability? Software upgrades availability?

Any other comment (e.g. about the CASA CMTS), also highly appreciated.

Also, if anyone has such a unit for sell (pref. refurbished), please contact me.

Rouge DHCP server on my network

Forums: 

Hello,

This might sound like a dumb question, but is there a way I can disable other DHCP requests on the cable network? I use the Arris CMTS 1000's and CMTS 1500's. I had a subscriber that plugged our cable modem into one of the LAN ports on his router and it back fed IPs to other cable modems in the network. This seems like it should be a simple fix that I'll missing.

Thanks in advance,
emkowale

DOCSIS 1.1 questions

Forums: 

Hi

I have a BSR1000 Motorola CMTS. This is my sw version

CMTS1#sho ver

BSR 1000R(tm) version 2.0.1.09.PRRU
Copyright (c) 2002 by Motorola.
Compiled Fri May 5 16:33:52 EDT 2006
MPC750 processor with 128MB memory.

1- How can I know if I'm in DOCSIS 1.1 ?

2- I want to know if with this sw version I can upgrade to DOCSIS 1.1

3- If that is the case, the only thing to do is to create down/up flows with DOCSIS 1.1 in the config files for the cable modems?

I hope I'm clear.

Thanks in advance

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