Subject: [IPFIX] IPFIX-MIB: ipfixMeteringProcessMessages, ipfixMeteringProcessErrors, ipfixMeteringProcessDataRecords

From: Gerhard Muenz <[email-masked]>
Date: Wed, 25 Feb 2009 15:11:32 +0100

Thomas, Benoit,

I do not understand why the following statistics are associated to the
Metering Process:

ipfixMeteringProcessMessages OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The number of IPFIX messages transmitted."
    ::= { ipfixMeteringProcessStatsEntry 3 }

ipfixMeteringProcessErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The number of messages that could not be sent due to e.g.
        internal buffer overflows or network congestion."
    ::= { ipfixMeteringProcessStatsEntry 4 }

The Metering Process does not generate or transmit any IPFIX Messages.
Also, IPFIX Messages including Data Records of a specific Metering
Process can be sent to different collectors resulting in different
Message errors.

I think the two counters should be removed. The Transport Session
statistics are sufficient.

It is interesting to count the Data Records *generated* (not
transmitted) by a Metering Process. Therefore, the following DESCRIPTION
should be changed:

ipfixMeteringProcessDataRecords OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The number of Data Records transmitted."
    ::= { ipfixMeteringProcessStatsEntry 5 }

Regards,
Gerhard

-- 
Dipl.-Ing. Gerhard Münz
Chair for Network Architectures and Services (I8)
Department of Informatics
Technische Universität München
Boltzmannstr. 3, 85748 Garching bei München, Germany
Phone:  +49 89 289-18008       Fax: +49 89 289-18033
E-mail: [email-masked]    WWW: http://www.net.in.tum.de/~muenz