How to parse SNMP output fields?

[mazaj]

Hello all.

I have created an snmp oid on remote site that gives me information about Memory usage.

# snmpget -c public -v 1 192.168.1.11 .1.3.6.1.4.1.2021.51.101.1
UCD-SNMP-MIB::ucdavis.51.101.1 = STRING: "Total:4086512 Used:3887820"

Notice I want to have 2 values in 1 (like Load Averages work output: 1min:0.09 5min:0.09 10min:0.08 )

After this I created a Data Input Method with 2 output fields (almost like Load Averages).


Then I want to create Data Template for this, but i don't see Output Field drop down menu in Data Source Item Section.



but in Load Averages all ok.



How can i combine 2 values via SNMP into 1 graph? Plz help! I'm stuck.

--mazaj

[fmangeant]

Hi

it would be easier to have a script which returns 2 values on 2 lines, like this :

Code: Select all

$ snmpget -c public -v 1 192.168.1.11 .1.3.6.1.4.1.2021.51.101
4086512
3887820

Then you can get the first value with the OID .1.3.6.1.4.1.2021.51.101.1, and the second value with .1.3.6.1.4.1.2021.51.101.2

[mazaj]

1) ok... but how do I create a graph for these 2 oids?? how will data template look ??

2) Maybe someone still know how to do parsing in SNMP ? maybe this is a bug ?

[fmangeant]

1) ok... but how do I create a graph for these 2 oids?? how will data template look ??

Take a look at the "Interface - Traffic" data template, it polls 2 OIDs.

[mazaj]

My SNMP oids are not indexed
Although I didn't managed to parse multiple values in SNMP, i created a script that pulls those two values via SNMP. For Cacti this is Script query.

Output looks like

Code: Select all

# /bin/sh /usr/hosting/belly/html/cacti/scripts/custom_linux_memory.sh 1 public 192.168.1.11
Total:4086512 Used:1782464

So I managed two use 1 SNMP query for multiple values via script.