Extract text in SNMP item.

[Bertrand39100]

Hi All,

is it possible to extract text in an zabbix item created with snmp parameter ?

Item : IMM_SRV_DESCRIPTION
Type : SNMPv1 agent
SNMP OID : 1.3.6.1.2.1.1.1.0
KEY : 1.3.6.1.2.1.1.1.0
SNMP Community : xxx_snmp_read
SNMP Port : 161
Type of information : Character or Text
...

Result :

SNMPv2-MIB::sysDescr.0 = STRING: Linux IMM_SRV_VM_ESX1 2.6.16.46-353 #2 PREEMPT Thu Nov 4 14:08:47 UTC 2010 mips

I want to display and have only "IMM_SRV_VM_ESX1" inside a Zabbix GUI item field.

Is it possible to display and show only "IMM_SRV_VM_ESX1" string in Zabbix GUI (instead of having the complete string) ?

Many Thanks.

Bertrand39100.

[JBo]

Hi,

AFAIK, it is not possible.

The only solution I see is to define an item of type "external check" associated with a script that does an snmpget and some shell command (sed, awk, cut,..) to return only the part you want.

Regards,
JBo

PS: The part you are looking for seems to be the hostname. Are you sure it is not already available in sysName.0 ?

[Bertrand39100]

Hello JBo,

Sorry for late answer and Thanks for your information.

Have a good day

Bertrand39100.

[cbidwell]

This seems kind of similar to the problem I'm having. I'm trying to pull text out as well.

In my case it is ifAlias.x and zabbix by default standards doesn't pull this MIB. Wonder if there's a way I can pull it in manually.

IF-MIB::ifAlias.1 = STRING: SERVERNAME
IF-MIB::ifAlias.2 = STRING: SERVERNAME
IF-MIB::ifAlias.3 = STRING: SERVERNAME
IF-MIB::ifAlias.4 = STRING: SERVERNAME
IF-MIB::ifAlias.5 = STRING: SERVERNAME
IF-MIB::ifAlias.6 = STRING: SERVERNAME
IF-MIB::ifAlias.7 = STRING: SERVERNAME
IF-MIB::ifAlias.9 = STRING: SERVERNAME
IF-MIB::ifAlias.11 = STRING: SERVERNAME
IF-MIB::ifAlias.12 = STRING: SERVERNAME
IF-MIB::ifAlias.13 = STRING: SERVERNAME
IF-MIB::ifAlias.15 = STRING: SERVERNAME
IF-MIB::ifAlias.16 = STRING: SERVERNAME
IF-MIB::ifAlias.18 = STRING: SERVERNAME

[JBo]

This seems kind of similar to the problem I'm having. I'm trying to pull text out as well.

In my case it is ifAlias.x and zabbix by default standards doesn't pull this MIB. Wonder if there's a way I can pull it in manually.

Well no, it has nothing similar to the problem Bertrand39100 reported.

You just need to create an item as follows:
Description : ifAlias.1
Type : SNMPv2 agent
Key: .1.3.6.1.2.1.31.1.1.1.18.1
Type of information : Character

That is basic SNMP functionality. You can check the manual for details.

Hope this helps
JBo

[cbidwell]

Thanks for the response...how do you know what the key is?

Key: .1.3.6.1.2.1.31.1.1.1.18.1

[JBo]

Thanks for the response...how do you know what the key is?

Got it from one of my SNMP templates.

Otherwise, you can use snmpget:

snmpget -v 2c -On  -c public localhost ifAlias.1
.1.3.6.1.2.1.31.1.1.1.18.1 = STRING:

(No alias on this interface)

JBo

[Bertrand39100]

Hello JBo,

To answer your question about :

"Are you sure it is not already available in sysName.0 ?"

[root@ids /]# snmpwalk -v 2c -c emo_snmp_read 172.17.x.x 1.3.6.1.2.1.1.5
SNMPv2-MIB::sysName.0 = STRING: SNMP Service
[root@ids /]# snmpwalk -v 2c -c emo_snmp_read 172.17.x.x 1.3.6.1.2.1.1.5.0
SNMPv2-MIB::sysName.0 = STRING: SNMP Service


I will go forward by making external script with awk to extract the text I want

Have a nice day.

Many Thanks

[cbidwell]

It looks like it does pull out the name, but that's just on one interface. How would I get the name/alias for my other interfaces?

snmpwalk -v 2c -c GOLD 10.10.10.1 sysName
SNMPv2-MIB::sysName.0 = STRING: Team-UNIX

[JBo]

Hi,

It looks like it does pull out the name, but that's just on one interface.

Of course, one Zabbix item = one MIB variable.

How would I get the name/alias for my other interfaces?

You have to create one item for each interface.
Last number in OID is interface index:
ifAlias.2 = .1.3.6.1.2.1.31.1.1.1.18.2
and so on.

If you need some information on how SNMP works, Wikipedia is a good start.
Zabbix has also some documentation about SNMP.

Hope this helps,
JBo

[cbidwell]

Thanks JBo, you've been extremely helpful with my snmp ignorance.

This is ultimately what I'd LIKE to do:

I want that if02 to be the actual name of the server attached to it. Not sure how to do this.