[rfc-dist] RFC 5236 on Improved Packet Reordering Metrics

rfc-editor@rfc-editor.org rfc-editor at rfc-editor.org
Tue Jun 3 15:23:53 PDT 2008


A new Request for Comments is now available in online RFC libraries.

        
        RFC 5236

        Title:      Improved Packet Reordering Metrics 
        Author:     A. Jayasumana, N. Piratla,
                    T. Banka, A. Bare,
                    R. Whitner
        Status:     Informational
        Date:       June 2008
        Mailbox:    Anura.Jayasumana at colostate.edu, 
                    Nischal.Piratla at telekom.de, 
                    Tarun.Banka at colostate.edu,
                    abhijit_bare at agilent.com, 
                    rick_whitner at agilent.com
        Pages:      26
        Characters: 57805
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-jayasumana-reorder-density-08.txt

        URL:        http://www.rfc-editor.org/rfc/rfc5236.txt

This document presents two improved metrics for packet reordering,
namely, Reorder Density (RD) and Reorder Buffer-occupancy Density
(RBD).  A threshold is used to clearly define when a packet is
considered lost, to bound computational complexity at O(N), and to
keep the memory requirement for evaluation independent of N, where N
is the length of the packet sequence.  RD is a comprehensive metric
that captures the characteristics of reordering, while RBD evaluates
the sequences from the point of view of recovery from reordering.

These metrics are simple to compute yet comprehensive in their
characterization of packet reordering.  The measures are robust and
orthogonal to packet loss and duplication.  This memo provides 
information for the Internet community.


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