I think I mentioned before, I'm new in this.. so sorry if i bother too much.
and thanks if you understand me.
im very interesting in learn everything I can in this environment.
USING: uBR7246VXR
I recently got interested in estimate the consumption of bandwidth.
how could i do this...
i know how much total bandwith is generated monitoring the internet router directly.
Also i can generate graphic with mrtg tool.
but i cant know how that traffic is distributed in the cable modems.
example:
Total traffic was 1460kbps 2:00 pm
if I have only 3 cable modem connected
I'm trying to understand how to calculate the Max-Burst-Size in the CM-configfile.
For that I took some specification RFI,DRFI,DVB and some cisco-pages and what
I could find in the web.
So what I figured out is the way to calculate the upstream-max-burst-size:
Hi,
Fairly new around here, but I've been performing tests on our mini CMTS for a while, using a linux DHCP/TFTP server.
I need to create some new test scenarios, where I serve different CM config files to the various modems.
I have a batch of Hitron, Motorola and Castlenet Modems on the system, and I want to give them each type a different config file in the dhcp.conf
How do I go about this? I currently use a symbolic link (cm.0) to the CM config file on the TFTP server, which works fine.
essentially, I want to use cm.0, cm.1, cm.2 for the modem groups.
Can someone explain what i have to do to make a eMTA work.
im using Arris TM602/G115 eMTA.
Like a Cable Modems works fine, but im unable to make the phone outputs work.
i dont have documentations of this.
attached i add the cable modem interfase status.
A wanted to shift enduser registration to the customers.
To protect our customer I've redacted some information from this example.
We decided to use reserved scope for registration.
a access-list that blokeds that scope from internet acces is in affect and 2 web server take care of registration.
First web server 10.127.0.15 will reply with "Location: http://register.client.com/" to any request.
Secound web server 10.127.0.13 is a LAMP installation.
A script will add static outside address to the dhcpd.conf file after registration.
Hi,
I'm fairly new to the DOCSIS arena and am having trouble understanding a few, what I consider to be, key points relating to the DOCSIS RF spectrum and availability to services over an HFC Cable network.
1. What is (or is there any) separation between each adjacent Downstream or Upstream channel in the DOCSIS/EuroDOCSIS spectrum?
(DOCSIS uses 6MHz and EuroDOCSIS 8MHz channel widths for downstream as a example. What is the spacing between each channel and is this spacing (if present) the same for all Upstream channel widths? i.e. 200KHz-6400KHz).
is there any MIB object to change upstream channel id on cablemodem via SNMPSET? I only know how to _VIEW_ the Channel ID!
I'm trying to change this ChannelID (Frequency) like CASA CMTS do on Load Balancing?!
I'm using ARRIS TM602 and Thomson 540,420.... cablemodems.
I'm a cable guy, but I have a customer that has wireless DOCSIS with an Arris CMTS 1500. His upstream SNR at the CMTS is about 10db. In the cable world that's bad. Is that bad for wireless too? my understanding is that DOCSIS is still DOCSIS over wireless, cable, glass or two cans and a string.
I'm trying to configure my UBR 7246 VXR to work with my 2 ISPs and i just can find the way to do it.
I have 2 ISPs, that till now were connected to 2 separate CMTSs & routers (because we do NAT).
What I'm trying to do is to eliminate my Arris CMTS and just use the CISCO UBR 7246 VXR.
What is the best way to do it? can i separate the CMTS ( 2 cards for each ISP - 12 upstreams) ? or can i route it if i give different ranges to the modems ?
