RE: How can I define my own trap?

I once defined a custom trap for monitoring calls on a VSAT this way:
	
	ncpcallcleared NOTIFICATION-TYPE
		OBJECTS { systemtrafficload, eventcode }
		STATUS current
		DESCRIPTION
			"Call cleared notification"
		::= { ncpcallevents 2 } 

where systemtrafficload and eventcode where defined in the same MIB file as:

	systemtrafficload OBJECT-TYPE
		SYNTAX Integer32 (0..100)
		MAX-ACCESS read-only
		STATUS current
		DESCRIPTION
			"System load in %, i.e. currenttrafficchannels / max. capacity (system total traffic channels )."
		::= { ncpstatus 2 }

	eventcode OBJECT-TYPE
		SYNTAX INTEGER (0..900)
		MAX-ACCESS accessible-for-notify
		STATUS current
		DESCRIPTION
			"Call end event code."
		::= { ncpcalleventsobjects 1 }

The traps where generated by an extension to snmpd process.


-----Mensaje original-----
De: Ignasi Paredes Oliva [mailto:[email protected]] 
Enviado el: lunes, 26 de enero de 2009 18:46
Para: [email protected]
Asunto: How can I define my own trap?

Hello,

I'm trying to define my own trap but I don't know how should I do it.
For now I have created the MIB file example of the web on my
/usr/share/snmp/mibs:

	TEST-MIB DEFINITIONS ::= BEGIN
	IMPORTS ucdExperimental FROM UCD-SNMP-MIB;

	demotraps OBJECT IDENTIFIER ::= { ucdExperimental 990 }

	demoTrap TRAP-TYPE
	ENTERPRISE demotraps
	VARIABLES { sysLocation }
	DESCRIPTION "An example of an SMIv1 trap"
	::= 17

	END

Using the following comand I can see the trap logged on my /var/log/daemon.log:
snmptrap -v 1 -c public 127.0.0.1 UCD-TRAP-TEST-MIB::demotraps "" 6 17 "" SNMPv2-MIB::sysLocation.0 s "Just here"

Now, my problem is that I want to define my own trap and I don't now how to do it. First, I want to retrieve some information of my mysql database and after that I would like to create a trap containing all that information (several numbers and strings) and, of course, send it. How should I do that? Should I create a new MIB file? In that case how can I define the desired list of variables?

Thank you in advance.


Best Regards,
Ignasi

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