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I-D ACTION:draft-ietf-ippm-ipdv-05.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IP Performance Metrics Working Group of the IETF.

	Title		: Instantaneous Packet Delay Variation Metric for IPPM
	Author(s)	: C. Demichelis, P. Chimento
	Filename	: draft-ietf-ippm-ipdv-05.txt
	Pages		: 20
	Date		: 24-Jul-00
	
This memo refers to a metric for variation in delay of packets across
Internet paths. The metric is based on statistics of the difference
in One-Way-Delay of consecutive packets. This particular definition
of variation is called 'Instantaneous Packet Delay Variation (ipdv)'.
 
The metric is valid for measurements between two hosts both in the
case that they have synchronized clocks and in the case that they are
not synchronized. In the second case it allows an evaluation of the
reciprocal skew. Measurements performed on both directions (Two-ways
measurements) allow a better estimation of clock differences. The
precision that can be obtained is evaluated.

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