I-D ACTION:draft-morton-ippm-delay-var-as-02.txt

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	Title		: Packet Delay Variation Applicability Statement
	Author(s)	: B. Claise, A. Morton
	Filename	: draft-morton-ippm-delay-var-as-02.txt
	Pages		: 26
	Date		: 2007-3-8

Packet delay variation metrics appear in many different standards
   documents.  The metric definition in RFC 3393 has considerable
   flexibility, and it allows multiple formulations of delay variation
   through the specification of different packet selection functions.

   Although flexibility provides wide coverage and room for new ideas,
   it can make comparisons of independent implementations more
   difficult.  Two different formulations of delay variation have come
   into wide use in the context of active measurements.  This memo
   examines a range of circumstances for active measurements of delay
   variation and their uses, and recommends which of the two forms is
   best matched to particular conditions and tasks.

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