Unable to Graph Data with MIB

Products ePMP
1

Is there an issue with the MIB’s when trying to use a graphing program to gather data on the Ethernet port? I am using cacti and I can’t seem to gather any data. When I use a different program to query I get this error:


Error Indication in response: There is no such variable name in this mib

I am using 2.1 with the 2.1 MIB’s.

2

Matt,

With the ePMP 2.1 MIBs, you can use the following MIBs to gather stats on the Ethernet port.

rxEtherLanKbitCount
txEtherLanKbitCount

Or use :

cambiumEthTX
cambiumEthRX


We currently do not support RFC1213 yet.

3

Hi.  Does anyone have a ready-made CACTI template, or step-by-step instructions on how to setup CACTI to monitor the ePMP?

With our older StarOS gear - we use CACTI to graph kbps on the Ethernet and the Wireless card, signal / noise / 'quality',  and ping times.  If we switch over to Cambium ePMP, we don't want to graph less information than we do now - so if anyone has a CACTI Template (or REALLY DETAILED step-by-step instructions) that would be great.

4

Hi  ninedd,

You can find ePMP templates on github:

https://github.com/m0sia/cacti-ePMP

Please let me know if you have any issues using them.

Thanks,

Dmitry M

2 Likes
5

Hi.  Thank you. :)  I appreciate it.

6

Please let me know if you have any issues using them.

Hi.  Well, this is what I did so far:

1) I copied the ePMP.xmp and ePMP-radio-STA.xml into my cacti/resource/snmp_queries/ directory.

2) I went to 'import templates' in the console menu, and tried to load the template files.  I selected the .xml files from my computer, and then clicked the IMPORT button. That produced an error  saying 'Error: XML parse error"

2b) So, instead, I cut and pasted the .xml data as text into the text window and clicked IMPORT, which appeared to work - at least there is no Error messages.

3) I went to the admin console and DEVICES and ADD and added the  device's IP, making sure that V2 was selected and that the community was correct.

4) In that device, down at the bottom, I selected ADD beside the Associated Data Query.  That does return a "1) ePMP - General Statistics" apparently properly, althought he status is [0 Items, 0 Rows]

5) When I go to CREATE -> NEW GRAPH, I just get an 'Error in data query' and no ability to add any graph Index.

7

I did this just a couple weeks ago on Cacti version 0.8.8b, and it worked fine.  Make sure you're importing cacti_data_query_epmp_-_general_statistics.xml and cacti_data_query_epmp_-_sta_radio_stats.xml, and not importing ePMP.xml and ePMP-radio-STA.xml.

1 Like
8

Hi.  Hmmm...  I'm also running Cacti 0.8.8b and as far as I know, I imported the correct thing(s).  I've been running CACTI for several years and I have it monitoring a couple thousand non-Cambium radios.  However, I've never really understood it 'under the hood'.

I'm including a screen shot of what I did, and this is what produces the ''XML Parse error''.  As I said earlier, if I take that .xml text and do a 'cut-and-paste' into the 'import template from text' window, it doens't complain, but then the next step produces an error instead.

9

Hey...  this is probably a stupid question...  do I need to do something with the MIB first?  As I mentioned before, our non-Cambium radios have been working for years and years, but since these are different I probably need to tell CACTI about the Cambium MIB somehow, right?

10

Those file sizes look a bit big, they should be about 105kb and 30kb.  Perhaps when you saved the xml you actually saved the entire html of the github page, it's easy to do.  Here are the links to the raw xml files:

https://raw.githubusercontent.com/m0sia/cacti-ePMP/master/templates/cacti_data_query_epmp_-_general_statistics.xml

https://raw.githubusercontent.com/m0sia/cacti-ePMP/master/templates/cacti_data_query_epmp_-_sta_radio_stats.xml

You'll want to make sure you didn't do the same for the snmp_queries files. 

https://raw.githubusercontent.com/m0sia/cacti-ePMP/master/snmp_queries/ePMP.xml

https://raw.githubusercontent.com/m0sia/cacti-ePMP/master/snmp_queries/ePMP-radio-STA.xml

11
@ninedd wrote:

Hey...  this is probably a stupid question...  do I need to do something with the MIB first?  As I mentioned before, our non-Cambium radios have been working for years and years, but since these are different I probably need to tell CACTI about the Cambium MIB somehow, right?

Yep, that's what the snmp_queries.xml files do.

1 Like
12
@dkeltgen wrote:

Those file sizes look a bit big, they should be about 105kb and 30kb.  Perhaps when you saved the xml you actually saved the entire html of the github page, it's easy to do. 

OK - for whatever reason, the .xml templates still wouldn't import when I try to upload them as files (and they do look to be just the .XML) but that's OK, because if I cut-and-paste the text of the XML files into the text-import window, it does seem to succeed.

And then - your suggestion was correct for the snmp-queries themselves.  Those files that I had uploaded where polluted with HTML headers as you suspected.  :)  I've  rm'd those and uploaded clean copies and that looks like that'll work now.  I'll let you know my results in the morning, but I think this'll work - THANKS.

13

Hi.  OK, once I manually imported the templates by pasting their text into the text window - and once I fixed the quesries so that they weren't polluted with HTML, this is working for me to graph in CACTI, so again, thanks for the help.  :)

However - I have a couple questions...   On the 'Host Templates' that we have on our older non-Cambium gear, we add a device and tell it the 'Host Template' and it then knows all the graphs we want to create for that.  I can simply do a 'Create Graph' and I can multi-click all the graphs at once, and say 'go' and they are all created.  With this ePMP Template, if I want to create all 11 graphs (plus Ping Latency) that's 12 individual graph creations.  Do you know how to create a 'Host Template' for the ePMP, or is that more something I should find in the CACTI forums.