Nagios Monitoring

7 posts / 0 new

Mon, 10/13/2008 - 06:16

bealsm

Nagios Monitoring

This is an extension off of the "Administration of Cable Plant" thread where Zenoss was discussed for monitoring.

I'm actually using Nagios to monitor my CMTS, routers and a provisioning equipment and some global modem variables (average plant SNR, TX power, RX power, etc), but am trying to find a way to monitor individual modems without having to define a new host and reload the service every time we add a new sub.

I was wondering if anyone has been using nagios for this purpose and has an idea how to add dynamic host monitoring to it. I have the discovery phase and the logging and graphing figured out. I just can't see a way to dynamically load a host without starting to hack into the core.

Wed, 10/15/2008 - 01:06

Kostua

Nagios Monitoring

use nagios to monitor the collective docsis modems. observed levels of signals upstream, downstream, snr. Using nagvis to display the network on the map

Mon, 05/12/2014 - 04:14

(Reply to #2) #3

ayushmaanbhav

Management of CMTS and Cable Modem

Is NAGIOS has out of box feature for monitoring CMTS and Cable modem or it need to be customized ? Any details on the depth of feature it have for management of CMTS ?

Thu, 10/23/2008 - 14:36

elek

I use Cacti for servers,

I use Cacti for servers, CMTS, switches and the other network-stuff. For the cable-modems I use a self-made script that writes the modem-values into a RRD-files (http://oss.oetiker.ch/rrdtool/). One RRD-file for each modem. From there it's easy to generate graphs. In my case I poll the modem-values from our Cisco ubr7223. eg.: [code]rsh '10.0.1.1' -l root 'show cable modem' >sho_modem.txt rsh '10.0.1.1' -l root 'show cable modem remote' >sho_modem_remo.txt [/code] Then the script merges these two files (each brings different values which I need) and generates the RRDs. That's a very fast solution which produces no overhead but needs a headend-router where you can do it in this way. The second way is to poll the modems directly with SNMP. If you have a list of modem-IPs which are to poll it's also easy, but slow. Well there is an alternate, very fast, SNMP scanner: "Braa" http://s-tech.elsat.net.pl/braa/ After you have the modem-values put it into RRDs.

Mon, 05/05/2014 - 10:03

(Reply to #4) #5

cabo81

braa example

Could yoy please post a braa example? I have downloaded braa and couldn't put it to work. Maybe the command of how you call the braa

for example: braa 10.1.0.1 someOptionWithBraa additionalInfo

Thanks in advance

Fri, 04/25/2014 - 20:21

MrJake

Check MK

I am currently checking a product called check mk which is a front end for nagios. I was wondering if anyone had plugins made to monitor a cmts for nagios that would be kind enough to share with me.
I am looking to monitor the following:
Upstreams:
FEC,SNR,UGS,Utilisation,Traffic and modem count
Downstreams:
Modem count, Traffic also wideband traffic summary.

If anyone could help i would be very grateful.

Thanks

Sat, 01/17/2015 - 20:35

(Reply to #6) #7

b42d

CHECK_MK

Hello,

sinces couples month check_mk detect my CISCO uBR7225VXR and Arris modem.

Thanks,

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