Re: trap information interchange: in text format

On Wed, 2007-03-21 at 15:54 +0000, Dave Shield wrote:
> On 21/03/07, Joao Miguel Ferreira <[email protected]> wrote:
> >  I need to find a suitable string format for receiving information to be
> >  sent as traps.
> 
> Are you looking at generating SNMPv1-style traps, or SNMPv2
> notifications?    Will you need to specify version information
> (including community/SNMPv3 user settings), or just the "payload"
> of the trap?

Only the payload. I do not need to specify trapsinks because I will use
the agent to send the traps to all the trapsinks defined in snmpd.conf.

I think this is the most correct approach. Any issue with this ?

> 
> At a minimum, you'll need to be able to handle:
> 
>    SNMPv1)   trap type (2 integers)
>                       enterprise (OID)
>                       + arbitrary varbind list

I guess the agent will take care of all the details if I use
send_v2trap. Is this correct ?

> 
>   SNMPv2)    trap OID
>                       + arbitrary varbind list
> 
> You may wish to be able to specify uptime and (v1) agent as well,
> but this is going to be the bare minimum.
> 
> 
> 
> 
> >  TRAP_OID=".1.3.6.1.2.1.1.x.y.z"  TRAP_TYPE="Integer" TRAP_VALUE="1234"
> 
> A single OID is probably sufficient here (assuming v2-style)
> TRAP_TYPE is redundant.
> TRAP_VALUE is misleading (and either insufficient, or redundant)
> 

There is really no such thing as a TRAP_VALUE... is there ?

> 
> >  VARBIND_OID=".1.3.6.1.2.1.a.b.c.d.e"
> > VARBIND_TYPE="Integer"
> >  VARBIND_VALUE="1000"
> > VARBIND_OID=".1.3.6.1.2.13.45.w.v.z.q"
> >  VARBIND_TYPE="Srting" VARBIND_VALUE="Hello World"
> 
> That should work, yes
> 
> How would you handle string values containing a " character?
> 

??? well I have to give it more thought. Thanks for pointing that.

> Do you have a full list of acceptable TYPE tokens?
> If not, then I'd suggest using the standard SYNTAX types from
> the SNMP specification, rather than inventing your own.

That was my intention. I will do that. thx.

joao
jmf


> 
> Dave
> 
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