Arris C3 CMTS template

timi · Posted: Wed Aug 30, 2006 10:59 am Post subject: Arris C3 CMTS template

hi,
here is another C3 template for FEC,UGS,SNR,MiniSlots,MER,Modem Count,UGS,Utilization per upstream available only for version 4.3.0.39 and up...

timi · Posted: Thu Aug 31, 2006 6:12 am Post subject:

timi · Posted: Thu Aug 31, 2006 6:13 am Post subject:

template

Makena · Joined: 06 Sep 2006 Posts: 1

Thanks
Work very good

Do you have for Arris 1500 Cornerstone ?

timi · Posted: Wed Sep 06, 2006 8:57 am Post subject:

ItsNewToYou · Joined: 18 Oct 2004 Posts: 8

Has anyone been able to modify this script to get it to work with a C4? It looks like the OIDS are different than a C3.

ItsNewToYou

ad_vlad · Joined: 24 Nov 2005 Posts: 6

hi, could anyone help me with installing this template ?
i have imported all the .xml files through cacti. I have tried to add the device but it complained something about C3.... . I found out that I have to copy the c3.xml to resources/script_queries.
Is there anything else that i need to do by hand ?

Cacti isn't generating the RRD files. When i go on the device page, it gets data from the device correctly. When doing a tcpdump on the device's ip, i don't see it beeing pooled when it should, but instead only when i'm going on the device page.

Cacti lists the device as up (had a problem with another device that was seen as down and changed the up detection to ping and snmp with icmp and the later device was fixed).

macdaddy · Joined: 13 Jan 2006 Posts: 16

I loaded up the C3 additions into Cacti recently. For the most part they work great. I was trying to get the number of modems graphed in advance of an impending ice storm so we could know within a few minutes if we lost part of our plant (using the thold plugin). Once thold had enough data to kick in and send off alerts it quickly became apparent that there was a problem. We have multiple sub-interfaces on our C3 upstreams. On many of our C3s each sub-interface has a different modulation profile. We have periodic load-balancing configured as well. What we see is a large percentage of modems drop from one upstream sub-int; this kicks off a thold alert. However nothing is down. The load-balancing just moved a number of modems over to the other sub-int on the same physical interface. Ie, we lost 50 modems on 1.0 but picked them up on 1.1; so there really isn't a problem.

The fix is to somehow graph the modems on the physical interface and not the logical interface. I've tried adding a graph of the physical interface in Cacti but no data is pulled. Is there a way to combine the 2 sub-ints via a template? How are other folks doing this? The Arris folks suggested the load-balancing config and said that it's very common. All I really want to do is graphs the total online modems on a given upstream so I can then use thold to alert me if we have a 10% change or so. This will let us find out about plant issues sooner rather than later (or never). This AM we had a CATV processor for channel 62 go nuts on us and start feeding noise out into the plant. This caused massive cable Internet problems for about an hour until we found the problem. A graph of the total number of online modems would have helped us find the problem sooner. Had it not been for the fact that I was monitoring certain network devices on the cable system we wouldn't have found out nearly as fast that we had an issue.

Thanks
J

timi · Posted: Tue Dec 18, 2007 5:38 am Post subject:

@macdaddy have a look at http://forums.cacti.net/viewtopic.php?t=19474

timi · Posted: Tue Dec 18, 2007 5:39 am Post subject:

joyssue · Joined: 27 Feb 2007 Posts: 20

C3 template for FEC,UGS,SNR,MiniSlots,MER,Modem Count,UGS,Utilization per upstream is not available for version 4.4.1.3.

timi · Posted: Wed Jan 23, 2008 6:26 am Post subject:

check if 4.4.x.x supports that oids ... we only use 4.3.x.x