Packet Delay Variation Applicability Statement
RFC 5481

Note: This ballot was opened for revision 02 and is now closed.

(Jari Arkko) Yes

Comment (2009-01-07 for -)
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Good work. One small issue: I found this confusing:

  range(b) = b_max - b_min = D_max - D_min + A

Is "b" here a variable or does it represent buffering as earlier?
b_min does not appear elsewhere in the document, did you mean B_min?

(Ron Bonica) Yes

(Lisa Dusseault) Yes

Comment (2009-01-07 for -)
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In section 4.4: 
   Note that the IPDV histogram will change
   if the sequence of delays is modified, but the PDV histogram will
   stay the same.

Should this be if the *order* of the sequence of delays is modified?  I believe if the sequence of delays were modified by changing the values, PDV histogram could change.  

On reading more of the document, I believe this wording is intentional; it seems that sequence is used as a synonym for order elsewhere in the doc.  For the record, I usually treat "sequence" as a synonym for "an ordered set" rather than "an order", but usage may differ in other communities.

Lars Eggert Yes

(Dan Romascanu) Yes

(Ross Callon) No Objection

(Pasi Eronen) No Objection

Comment (2009-01-06 for -)
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The document was unexpectedly easy to understand (even to someone who
doesn't have much background knowledge about this kind of metrics 
and measurements) -- good work!

(Russ Housley) No Objection

Comment (2009-01-08 for -)
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  In the Gen-ART Review by Christian Vogt, two suggestions were made:

  Section 1.1, 3rd paragraph:  "Lost and delayed packets are separated
  by a waiting time threshold." -- Since the waiting time threshold
  does not only apply to those packets that are lost or delayed, this
  sentence should be rephrased to:  "Packets for which one-way loss or
  delay is measured are...".

  Section 3.2, 4th-to-last paragraph:  "The error in the alignment
  process can be accounted for by a factor, A." -- A is an offset
  (addend) here, not a factor.

(Cullen Jennings) No Objection

(Chris Newman) No Objection

(Tim Polk) (was No Record, Discuss) No Objection

Comment (2009-01-06)
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The Summary of Comparisons table in section 7.3 would be more legible if there was
a blank line or a line of dashes separating each row.

(Mark Townsley) No Objection

(David Ward) No Objection