Subject: [IPFIX] IPFIX-MIB: TemplateRefreshPackets?

From: Gerhard Muenz <[email-masked]>
Date: Wed, 30 Apr 2008 14:16:00 +0200

Dear all,

The IPFIX-MIB specifies:

  ipfixTransportSessionTemplateRefreshPacket OBJECT-TYPE
      SYNTAX      Unsigned32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
          "On Exporters this object contains the number of packets
          after which IPFIX Templates MUST be resent by the
          Exporter.

          On Collectors this object contains the lifetime in number
          of packets after which a Template becomes invalid when it
          is not received again within this lifetime.

          This object is only valid if ipfixTransportSessionProtocol
          has the value 17 (UDP). In all other cases the value MUST
          be 0."
      DEFVAL      { 0 }
      ::= { ipfixTransportSessionEntry 11 }

(similarly for ipfixTransportSessionOptionTemplateRefreshPacket)

Isn't the description ambiguous?
"On Exporters this object contains the number of packets after which
IPFIX Templates MUST be resent by the Exporter."
What is meant by "packets" in this context?
- packets observed?
- packets accounted?

I assume it is the number of IPFIX Messages exported, right?
Then, the description should be changed accordingly.

Regards,
Gerhard

-- 
Dipl.-Ing. Gerhard Münz
Computer Networks and Internet
Wilhelm Schickard Institute for Computer Science
University of Tuebingen
Sand 13 (Room B309), D-72076 Tuebingen, Germany
Phone:  +49 7071 29-70534       Fax: +49 7071 29-5220
E-mail: [email-masked]
WWW:    http://net.informatik.uni-tuebingen.de/~muenz

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