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

Upstream power level increases in hot weather

Forums: 

Hi, my first post here :D

Arris CM450B

Forums: 

Hello,

can anyone post sample config file for this modem with 1024k/512k speeds ?

Sincerely thankfull.

Arris CMTS 1000

Forums: 

Hello,
we are trying to set up cable internet service for a small campus network. One of our sponsors sent us a used Arris CMTS 1000 device. No documentation came with it, but I have found some papers on the internet. One of manuals stated that LVn provisioning software came with the device. Can somebody point me to the location where we can download said software ?

Downstream Speed issues after 16QAM Implementation

Forums: 

We have had a few customers report Downstream speed issues after switching from QPSK to 16QAM on our upstreams. These modems, however, hit their Upstream Speed caps every time. When QPSK is set back to that upstream, the downstream speeds return.

Example - 5Mb/512kbps Config File
QPSK - 4.8Mb/500kbps speed test
16QAM - 600kbps/500kbps speet test

(These are speed tests that are run inside our network)

Basic Info:
The modem used is a Motorola SB 5101, the CMTS is a Motorola BSR-1000

bandwidth request failure status = 0

Forums: 

well the topic says it all modems on my network get that error in the modem shell (diagnostic one) SB5100 with shelled firmware are getting the error:
Bandwith request failure! Status = 0
I can not figure out why this is happening.
Any ideas?
thanks

packetcable

Forums: 

hi, does anybody have any experience with packetcable + asterisk? is it really worth it (in terms of tco)? does it really works? how well? thanks.

docsis server 2.0.4 w motorola bsr1000 DHCP crashes...

Forums: 

Hi all

First i would like to say that i managed to put up a whole system and is working more or less fine except for DHCP service. DHCP is crashing once in 5 minute interval when CPE equipment is renewing IP address. Watchdog script is doing a job, but i would like to know is there someone experiencing
a similar problem. Funny thing is that some PCs are not crashing DHCP and some crashes it every time...weird.

Tom

Strange ARP/Bridging time out problems on VYYO WMTS

Forums: 

Hello,

We have been having a strange problem for the last month or two on our Vyyo WMTS.

We have about 430 MMDS wireless customers, spread across 6 upstream channels and 1 downstream channel.

What happens is that after about 12 hours, the system will randomly stop passing packets for random IP's. Sometimes it may be a modem IP, or sometimes it may be the customers router behind the modem.

If you reboot the WMTS, it works fine for about 12 hours or so.

How to shorten ranging time?!

Forums: 

Hi all,

I would like to short the ranging time of CMs connected to Arris C3 CMTS. From my experience to the other CMTS-es I configured ranging-backof to 1 4, and it works, but in Arris C3 CMTS even with this parameter configured, some of the modems are staying for long in init(r1) mode.

Does anybody know what else I need to reconfigure?

Thanks
Astrit,

Motorola sb5100 config files

Forums: 

Hi

Does anyone have a sample config file for them ie (256/128speed) in text file

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