Re: [IETFMIBS] RFC 3584 usage of snmpTargetAddrTable

[Juergen Schoenwaelder <j.schoenwaelder at jacobs-university.de>]

On Mon, Jul 14, 2008 at 10:37:29AM -0600, Eduardo Cardona wrote:

> I think the syntax constrain of snmpTargetAddrParams does not cover the
> usage of snmpTargetAddrTable in RFC 3584 where snmpTargetAddrTable does
> not represent a SNMP notification target but a SNMPv1/v2c transport
> address/mask pair for SNMP Snmpv1/v2c coexistence with SNMPv3 framework.

Why do you think so?

> Existing definition RFC 3413,
> 
> snmpTargetAddrParams OBJECT-TYPE
>     SYNTAX      SnmpAdminString (SIZE(1..32))
>     MAX-ACCESS  read-create
>     STATUS      current
>     DESCRIPTION
>         "The value of this object identifies an entry in the
>          snmpTargetParamsTable.  The identified entry
>          contains SNMP parameters to be used when generating
>          messages to be sent to this transport address."
>     ::= { snmpTargetAddrEntry 7 }
> 
> 'intended' syntax
> snmpTargetAddrParams OBJECT-TYPE
>     SYNTAX      SnmpAdminString (SIZE(0|1..32))
>     MAX-ACCESS  read-create
>     STATUS      current
>     DESCRIPTION
>         "The value of this object identifies an entry in the
>          snmpTargetParamsTable.  The identified entry
>          contains SNMP parameters to be used when generating
>          messages to be sent to this transport address.
>          The zero-length string is applicable to entries in this
>          table related to RFC 3584."
>     ::= { snmpTargetAddrEntry 7 }

I fail to see how the added sentence provides clearity. An
snmpTargetAddrEntry identifies a transport endpoint with associated
parameters while an snmpTargetParamsEntry adds to it the SNMP message
processing model to be used, the security model to be used, etc. You
need all this for SNMPv1 or SNMPv2c. Perhaps what is missing is just
an example how these tables work together but I doubt someone will
revise RFC 3584 for that purpose.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>
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